CN113286370B - Channel time allocation and access control processing method for communication in wireless network - Google Patents
Channel time allocation and access control processing method for communication in wireless network Download PDFInfo
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Abstract
The invention relates to a channel time allocation and access control processing method for communication in a wireless network, which comprises the steps of acquiring request information of a first communication node, and determining the length of data to be transmitted and the carrier frequency required to be used in the request information; determining data receiving conditions of a plurality of communication nodes in a first communication range according to the position information of the first communication node, determining retransmission rates of the communication nodes, and determining a channel with the lowest retransmission rate as a first priority channel; and detecting the network condition in real time, wherein the transmission time node of the data to be transmitted is determined based on the length of the data to be transmitted, the carrier frequency and the network condition. When data transmission is carried out, one-layer correction is carried out on the selection of the channel based on the retransmission rate, and secondary correction is carried out on the transmission time node based on the length of the data to be transmitted, the carrier frequency and the network condition, so that the request and response process in network communication is more accurate, and the safety of the data to be transmitted is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a channel time allocation and access control processing method for communications in a wireless network.
Background
Communication technology refers to methods and measures taken to transfer information from one sending node to another, and is an extremely important component of electronic technology. Generally, a communication network includes a plurality of nodes, each node is a transmitting node and a receiving node, the roles of the nodes are different at different times, and according to the sequence of historical development, the communication technology is sequentially transmitted from human body information communication to simple signal communication, and then wired communication and wireless communication are developed.
The wireless communication is usually based on an Access Control protocol, and the Medium Access Control (MAC) protocol has a main function of coordinating multiple users to share a common resource, determining whether a data frame can be transmitted to a physical channel, and allocating a network channel resource, and in a multi-channel network, selecting a suitable channel to transmit data.
However, in the conventional communication method based on the access control protocol, since the total throughput of the network is the sum of all link rates in the network, the number of links increases with the increase of nodes, and the transmission rate of the links increases. As the mutual interference among the nodes is increased along with the increase of the number of the links, for any link, the signal-to-interference ratio of the receiving node is reduced, the error rate of a channel is increased, and when the number of the network nodes is increased to a certain number, in order to ensure the error rate and the transmission rate of the established link, the establishment of a new link is limited to a certain extent, so that the total network throughput tends to be in a saturated state, and the network data transmission is influenced.
Disclosure of Invention
Therefore, the invention provides a channel time allocation and access control processing method for communication in a wireless network, which can solve the problem of increased signal interference under the premise of increasing the number of nodes.
In order to achieve the above object, the present invention provides a method for channel time allocation and access control processing for communication in a wireless network, comprising:
acquiring request information of a first communication node, and determining the length of data to be transmitted and the carrier frequency requested to be used in the request information;
determining data receiving conditions of a plurality of communication nodes in a first communication range according to the position information of the first communication node, determining retransmission rates of the communication nodes, and determining a channel with the lowest retransmission rate as a first priority channel;
detecting the network condition in real time, and transmitting data to be transmitted by utilizing a first priority channel in a first communication range of a first communication node according to the network condition, wherein a transmission time node of the data to be transmitted is determined based on the length of the data to be transmitted, the carrier frequency and the network condition;
the first communication node comprises a plurality of nodes in a first communication range, the nodes in the first communication range of the first communication node are evaluated in the using process of the nodes in the first communication range, the retransmission rate of each node is determined, the comparison results of the retransmission rates are obtained, and a first priority channel of the first communication node in the first communication range is determined according to the comparison results, so that the first communication node establishes the first priority channel, and the data to be transmitted are ensured to be transmitted by the first communication node through the first priority channel.
Further, after a transmission channel is determined, data to be transmitted is sent to a second communication node through the transmission channel, a transmission matrix S (Li, Ci, Ni) is set, wherein Li represents length characteristic information of the data to be transmitted at the ith moment, Ci represents carrier frequency of the data to be transmitted at the ith moment, and Ni represents network state at the ith moment.
Further, encoding the data to be transmitted according to the data length, the carrier frequency, and the network state includes:
a data length standard matrix L0 (L10, L20 and L30) is preset, wherein L10 represents a first reference length in data to be transmitted, L20 represents a second reference length in the data to be transmitted, and L30 represents a third reference length in the data to be transmitted;
if the data length of the data to be transmitted is less than or equal to a first reference length, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a first identification code, and the first identification code is represented by hexadecimal corresponding to a reference parameter in a data length standard matrix L0 (L10, L20 and L30);
if the second reference length is larger than or equal to the data length of the data to be transmitted and is larger than the first reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a second identification code, wherein the second identification code is decimal representation corresponding to reference parameters in a data length standard matrix L0 (L10, L20 and L30);
if the third reference length is larger than or equal to the data length of the data to be transmitted and larger than the second reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a third identification code, wherein the third identification code is represented by an octal system corresponding to the reference parameter in a data length standard matrix L0 (L10, L20 and L30);
and if the data length of the data to be transmitted is larger than the third reference length, encoding the data to be transmitted, wherein the encoding rule is the data to be transmitted plus a fourth identification code, and the fourth identification code is binary representation corresponding to the reference parameters in a data length standard matrix L0 (L10, L20, L30).
Further, a carrier frequency matrix C0 (C10, C20, C30, C40) is preset, wherein C10 represents a first carrier frequency band of data to be transmitted, C20 represents a second carrier frequency band of data to be transmitted, C30 represents a third carrier frequency band of data to be transmitted, and C40 represents a fourth carrier frequency band of data to be transmitted;
if the actual carrier frequency band of the data to be transmitted belongs to the first carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a sixth identification code, and the sixth identification code is represented by hexadecimal corresponding to a reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the second carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a seventh identification code, and the seventh identification code is decimal representation corresponding to the benchmark parameters in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the third carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with an eighth identification code, and the eighth identification code is represented by an octal system corresponding to the reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
and if the actual carrier frequency band of the data to be transmitted belongs to the fourth carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a ninth identification code, and the ninth identification code is binary representation corresponding to the reference parameter in the carrier frequency matrix C0 (C10, C20 and C30).
Further, after the data to be transmitted is encoded, a channel needs to be selected for data transmission, specifically, the selection of the transmission time node is set according to the network condition, a time node matrix T (T1, T2, T3, T4) is provided, where T1 represents a first time node, T2 represents a second time node, T3 represents a third time node, T4 represents a fourth time node, time lags between the first time node and the fourth time node are sequentially increased, the transmission level Ai of the data to be transmitted is determined according to the length of the encoded data packet, and if the transmission level Ai of the data to be transmitted is less than or equal to the first transmission level a1, the first time node is used for transmission;
if the first transmission level A1< the transmission level Ai of the data to be transmitted is not more than the second transmission level A2, a second time node is adopted for transmission;
if the second transmission level A2< the transmission level Ai of the data to be transmitted is not more than the third transmission level A3, a third time node is adopted for transmission;
if the transmission level Ai of the data to be transmitted is greater than the third transmission level a3, a fourth time node is used for transmission.
Further, a transmission level Ai = a × Li + b × Ci of the data to be transmitted is determined, where a is a data length weight coefficient, b is a carrier frequency weight coefficient, and a + b = 1.
Further, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in hexadecimal form, Li is assigned to 4, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in decimal form, Li is assigned to 3, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in octal form, Li is assigned to 2, and if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in binary form, Li is assigned to 1.
Further, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are hexadecimal, Ci is assigned to 4, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are decimal, Ci is assigned to 3, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are octal, Ci is assigned to 2, and if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are binary, Ci is assigned to 1.
Compared with the prior art, the invention has the advantages that a plurality of transmission channels can be selected when a transmission channel is constructed, the channel selection of data to be transmitted is determined based on the retransmission rate of the communication nodes around the first communication node, the selection of the transmission time node is determined based on the length of the data to be transmitted, the carrier frequency and the network condition after the transmission channel is determined, and compared with the method for immediately transmitting data after receiving handshake information feedback in the prior art, the embodiment of the invention specially designs the transmission time node, so that the data transmission is carried out by utilizing the transmission channel at a specific time node, the time for data transmission in a wireless network is more reasonable, the safety and the rationality of the data transmission are improved, and the flexibility in the data transmission process is improved, and the communication quality is greatly improved.
Particularly, after the transmission channel is determined, the data to be transmitted is sent to the second communication node through the transmission channel, the mode of instant transmission is eliminated for the determination of the transmission time node of the data to be transmitted, the time node is determined according to the length of the data to be transmitted, the carrier frequency and the network condition, so that the time selection of the data to be transmitted is more in line with the actual communication requirement, the time node is determined based on the actual characteristic of the data to be transmitted, the carrier frequency and the network characteristic, the actual secondary transmission requirement is met, and the safety of the data to be transmitted is greatly improved.
Particularly, when data transmission is carried out, two-layer correction is carried out on a channel and transmission time, one-layer correction is carried out on the selection of the channel based on the retransmission rate, and secondary correction is carried out on a transmission time node based on the length of data to be transmitted, the carrier frequency and the network condition, so that the request and response process in network communication is more accurate, and the safety of the data to be transmitted is improved.
Particularly, the actual data length of the data to be transmitted is compared with the reference parameters in the preset data length standard matrix, different coding modes are adopted for the data to be transmitted according to the comparison result, the data to be transmitted is rapidly coded, and the transmission speed of the data to be transmitted is improved.
In particular, all time nodes for transmitting data to be transmitted are determined by setting a channel time node matrix, and an optimal transmission time node for transmitting the data to be transmitted is determined by detecting the network condition of each time node during transmission.
Particularly, the data to be transmitted is encoded by the data length standard matrix L0 (L10, L20 and L30), the specific encoding of the data to be transmitted is realized by adopting different encoding modes, the safety of the data in the transmission process is improved, the transmission level Ai of the data to be transmitted is determined by corresponding to different Li according to the influence on the data byte length when encoding is carried out according to different binary systems, so that different transmission time nodes are selected for the data with different byte lengths, and the data transmission speed is improved.
Particularly, after data to be transmitted are coded, the corresponding data transmission time nodes are determined according to the corresponding coding rules, the coding algorithm in the embodiment of the invention codes and transmits the data to be transmitted, so that the data are processed more rapidly, different transmission time nodes are selected according to different coding rules, the transmission time nodes are determined in real time on the basis of the optimal path of a transmission path, the transmission efficiency of the data to be transmitted is further improved in the transmission process, and the timeliness and the effectiveness of the data to be transmitted are improved.
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Fig. 1 is a flowchart illustrating a channel time allocation and access control processing method for communication in a wireless network according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a method for channel time allocation and access control processing in wireless network according to an embodiment of the present invention includes:
step S100, acquiring request information of a first communication node, and determining the length of data to be transmitted and the carrier frequency requested to be used in the request information;
step S200: determining data receiving conditions of a plurality of communication nodes in a first communication range according to the position information of the first communication node, determining retransmission rates of the communication nodes, and determining a channel with the lowest retransmission rate as a first priority channel;
step S300: the method comprises the steps of detecting the network condition in real time, and transmitting data to be transmitted by utilizing a first priority channel in a first communication range of a first communication node according to the network condition, wherein a transmission time node of the data to be transmitted is determined based on the length of the data to be transmitted, the carrier frequency and the network condition.
In the embodiment of the invention, when the transmission channel is constructed, a plurality of transmission channels can be selected, the channel selection for data to be transmitted is based on the retransmission rates of the communication nodes surrounding the first communication node to determine the best transmission channel, which, after determining the transmission channel, the selection of the transmission time node is determined based on the length of the data to be transmitted, the carrier frequency and the network condition, compared with the method for immediately transmitting the data after receiving handshake information feedback in the prior art, the embodiment of the invention specially designs the transmission time node, the data transmission is carried out by utilizing the transmission channel at a specific time node, so that the data transmission time in a wireless network is more reasonable, the safety and the reasonability of data transmission are improved, the flexibility in the data transmission process is improved, and the communication quality is greatly improved.
The method for processing channel time allocation and access control for communication in a wireless network according to the embodiments of the present invention is applied to a scenario of wireless network communication, in the wireless network communication process, a data is usually required to be sent from a sending end to a receiving end, the sending end is a first communication node, the receiving end is a second communication node, the first communication node and the second communication node can send data and can also receive data, but a channel used by any communication node during sending and receiving is not the same channel, a plurality of nodes are disposed between the first communication node and the second communication node, which are respectively a node a, a node B, a node C, etc., data of the first communication node needs to be transmitted to the second communication node through at least one node, the first communication node and the second communication node can be computers, or mobile phones can also be mobile terminals such as tablets, the node in the embodiment of the present invention may be a transfer station for data transmission, and may be an unmanned aerial vehicle or a server.
Specifically, in the embodiment of the present invention, a first communication range of a first communication node includes multiple nodes, which are respectively PII, PI2, and PI3 …, in a use process of the multiple nodes in the first communication range, each node has different information receiving capability, and if the nodes communicate with the other nodes, the probability that each node requires retransmission is different, so that the nodes in the first communication range of the first communication node are evaluated to determine retransmission rates of the nodes And determining that the channel between the first communication node and the second communication node is selected to be the channel with the lowest retransmission rate, so that the data transmission safety is improved.
Specifically, after a transmission channel is determined, data to be transmitted is sent to a second communication node through the transmission channel, an instant transmission mode is eliminated for the determination of a transmission time node of the data to be transmitted, the time node is determined according to the length of the data to be transmitted, the carrier frequency and the network condition, so that the time selection of the data to be transmitted is more in line with the actual communication requirement, the time node is determined based on the actual characteristic of the data to be transmitted, the carrier frequency and the network characteristic, the actual secondary transmission requirement is met, and the safety of the data to be transmitted is greatly improved.
Specifically, in the embodiment of the invention, when data transmission is performed, two-layer correction is performed on a channel and transmission time, one-layer correction is performed on the selection of the channel based on the retransmission rate, and secondary correction is performed on a transmission time node based on the length of data to be transmitted, the carrier frequency and the network condition, so that the request and response processes in network communication are more accurate, and the security of the data to be transmitted is improved.
Specifically, when a transmission time node of data to be transmitted is determined, if the length of data in the data to be transmitted is long, a required transmission path is different from a transmission time node of the data to be transmitted, which is short in data length.
Specifically, the embodiment of the invention is provided with a transmission matrix S (Li, Ci, Ni), where Li represents length characteristic information of data to be transmitted at the i-th time, Ci represents a carrier frequency of the data to be transmitted at the i-th time, and Ni represents a network state at the i-th time, after data length, carrier frequency, and network state in the data to be transmitted are extracted, the data to be transmitted is encoded according to the information in the data to be transmitted, a corresponding transmission time node is selected for transmitting the data to be transmitted encoded by using the information, and before data transmission, the data length, carrier frequency, and network state are transmitted to a second communication node, so that the second communication node decodes the data according to the data length, carrier frequency, and network state, and further effective transmission of the data to be transmitted is realized.
Specifically, the encoding of data to be transmitted according to the data length, the carrier frequency, and the network state in the embodiment of the present invention includes:
a data length standard matrix L0 (L10, L20 and L30) is preset, wherein L10 represents a first reference length in data to be transmitted, L20 represents a second reference length in the data to be transmitted, and L30 represents a third reference length in the data to be transmitted;
if the data length of the data to be transmitted is less than or equal to a first reference length, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a first identification code, and the first identification code is represented by hexadecimal corresponding to a reference parameter in a data length standard matrix L0 (L10, L20 and L30);
if the second reference length is larger than or equal to the data length of the data to be transmitted and is larger than the first reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a second identification code, wherein the second identification code is decimal representation corresponding to reference parameters in a data length standard matrix L0 (L10, L20 and L30);
if the third reference length is larger than or equal to the data length of the data to be transmitted and larger than the second reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a third identification code, wherein the third identification code is represented by an octal system corresponding to the reference parameter in a data length standard matrix L0 (L10, L20 and L30);
and if the data length of the data to be transmitted is larger than the third reference length, encoding the data to be transmitted, wherein the encoding rule is the data to be transmitted plus a fourth identification code, and the fourth identification code is binary representation corresponding to the reference parameters in a data length standard matrix L0 (L10, L20, L30).
Specifically, according to the embodiment of the invention, the actual data length of the data to be transmitted is compared with the reference parameter in the preset data length standard matrix, and different coding modes are adopted for the data to be transmitted according to the comparison result, so that the data to be transmitted is rapidly coded, and the transmission speed of the data to be transmitted is increased.
Specifically, a carrier frequency matrix C0 (C10, C20, C30, C40) is also preset in the embodiment of the present invention, where C10 represents a first carrier frequency band of data to be transmitted, C20 represents a second carrier frequency band of data to be transmitted, C30 represents a third carrier frequency band of data to be transmitted, and C40 represents a fourth carrier frequency band of data to be transmitted;
if the actual carrier frequency band of the data to be transmitted belongs to the first carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a sixth identification code, and the sixth identification code is represented by hexadecimal corresponding to a reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the second carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a seventh identification code, and the seventh identification code is decimal representation corresponding to the benchmark parameters in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the third carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with an eighth identification code, and the eighth identification code is represented by an octal system corresponding to the reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
and if the actual carrier frequency band of the data to be transmitted belongs to the fourth carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a ninth identification code, and the ninth identification code is binary representation corresponding to the reference parameter in the carrier frequency matrix C0 (C10, C20 and C30).
Specifically, according to the frequency band range where the actual carrier frequency band of the data to be transmitted is located, and according to the corresponding frequency band range, different coding modes are adopted for the data to be transmitted, so that the data to be transmitted is quickly coded, the transmission speed of the data to be transmitted is further improved, and the transmission time node is determined according to the coding process through the quick coding of the data to be transmitted, so that the transmission speed is further improved.
After data to be transmitted is coded, a channel needs to be selected for data transmission, specifically, the selection of a transmission time node is set according to the network condition, a time node matrix T (T1, T2, T3, T4) is set, wherein T1 represents a first time node, T2 represents a second time node, T3 represents a third time node, T4 represents a fourth time node, time lags from the first time node to the fourth time node are sequentially increased, a transmission level Ai of the data to be transmitted is determined according to the length of a coded data packet, and if the transmission level Ai of the data to be transmitted is not greater than a first transmission level a1, the first time node is adopted for transmission;
if the first transmission level A1< the transmission level Ai of the data to be transmitted is not more than the second transmission level A2, a second time node is adopted for transmission;
if the second transmission level A2< the transmission level Ai of the data to be transmitted is not more than the third transmission level A3, a third time node is adopted for transmission;
if the transmission level Ai of the data to be transmitted is greater than the third transmission level a3, a fourth time node is used for transmission.
Specifically, in the method for processing channel time allocation and access control for communication in a wireless network provided in the embodiments of the present invention, all time nodes for transmitting data to be transmitted are determined by setting a channel time node matrix, and an optimal transmission time node for transmitting data to be transmitted is determined by detecting a network condition of each time node during transmission.
Determining a transmission level Ai = a × Li + b × Ci of data to be transmitted, where a is a data length weight coefficient, b is a carrier frequency weight coefficient, and a + b = 1.
The transmission level provided by the embodiment of the invention is determined based on the data length and the carrier frequency of the data to be transmitted, so that the determination of the transmission level of the data to be transmitted is more accurate and conforms to the characteristics of the actual data to be transmitted.
Specifically, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in hexadecimal form, Li is assigned to 4, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in decimal form, Li is assigned to 3, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in octal form, Li is assigned to 2, and if the reference parameters in the data length standard matrix L0 (L10, L20, L30) encode data to be transmitted in binary form, Li is assigned to 1.
Specifically, in the method for channel time allocation and access control processing for communication in a wireless network provided in the embodiment of the present invention, data to be transmitted is encoded by using a data length standard matrix L0 (L10, L20, and L30), specific encoding of the data to be transmitted is realized by using different encoding modes, security of the data in a transmission process is improved, and determination of a transmission level Ai of the data to be transmitted is improved according to different Li due to influences on data byte lengths when encoding is performed according to different binary systems, so that different transmission time nodes are selected for data with different byte lengths, and data transmission speed is improved.
Specifically, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are hexadecimal, Ci is assigned to 4, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are decimal, Ci is assigned to 3, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are octal, Ci is assigned to 2, and if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30) are binary, Ci is assigned to 1.
Specifically, in the embodiment of the present invention, the carrier frequency matrix C0 (C10, C20, C30) is used for encoding data to be transmitted, different encoding modes are adopted to implement specific encoding of the data to be transmitted, the security of the data in the transmission process is improved, and the determination of the transmission level Ai of the data to be transmitted is improved according to different Ci due to the influence on the byte length of the data when encoding is performed according to different binary systems, so that different transmission time nodes are selected for the data with different byte lengths, and the data transmission speed is improved.
Specifically, when a channel is selected, a first transmission channel is selected as an example, before transmission, a transmission speed of a transmission path established between a first communication node and a plurality of nodes within a first distance from the first communication node is selected, a transmission path with the lowest retransmission efficiency in the plurality of transmission paths is selected to determine the first node, the transmission path is selected to transmit data to be transmitted from the first communication node to the first node, before data transmission, the first node is used as the first communication node, a next node is selected according to the same method until reaching the second communication node, a first priority channel between the first communication node and the second communication node is determined, and establishment and selection of other channels can be analogized in turn.
Specifically, the embodiment of the invention realizes the information transmission network by setting a plurality of nodes, and selects the first priority channel as the transmission path of the data to be transmitted in the transmission network, thereby greatly improving the transmission security of the data to be transmitted.
Specifically, after data to be transmitted is coded, the corresponding data transmission time node is determined according to the corresponding coding rule, the coding algorithm in the embodiment of the invention codes and transmits the data to be transmitted, so that the data is processed more rapidly, different transmission time nodes are selected according to different coding rules, the transmission time node is determined in real time on the basis of the optimal path of the transmission path, the transmission efficiency of the data to be transmitted is further improved in the transmission process, and the timeliness and the effectiveness of the data to be transmitted are improved.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A method for channel time allocation and access control processing for communications in a wireless network, comprising:
acquiring request information of a first communication node, and determining the length of data to be transmitted and the carrier frequency requested to be used in the request information;
determining data receiving conditions of a plurality of communication nodes in a first communication range according to the position information of the first communication node, determining retransmission rates of the communication nodes, and determining a channel with the lowest retransmission rate as a first priority channel;
detecting the network condition in real time, and transmitting data to be transmitted by utilizing a first priority channel in a first communication range of a first communication node according to the network condition, wherein a transmission time node of the data to be transmitted is determined based on the length of the data to be transmitted, the carrier frequency and the network condition;
the first communication node comprises a plurality of nodes in a first communication range, the nodes in the first communication range of the first communication node are evaluated in the using process of the nodes in the first communication range, the retransmission rate of each node is determined, the comparison results of the retransmission rates are obtained, and a first priority channel of the first communication node in the first communication range is determined according to the comparison results, so that the first communication node establishes the first priority channel, and the data to be transmitted are ensured to be transmitted by the first communication node through the first priority channel.
2. The method of channel time allocation and access control processing for communications in a wireless network of claim 1,
after a transmission channel is determined, data to be transmitted is sent to a second communication node through the transmission channel, a transmission matrix S (Li, Ci, Ni) is set, wherein Li represents length characteristic information of the data to be transmitted at the ith moment, Ci represents carrier frequency of the data to be transmitted at the ith moment, and Ni represents network state of the ith moment.
3. The method of channel time allocation and access control processing for communications in a wireless network of claim 2,
encoding data to be transmitted according to the data length, the carrier frequency and the network state comprises the following steps:
a data length standard matrix L0 (L10, L20 and L30) is preset, wherein L10 represents a first reference length in data to be transmitted, L20 represents a second reference length in the data to be transmitted, and L30 represents a third reference length in the data to be transmitted;
if the data length of the data to be transmitted is less than or equal to a first reference length, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a first identification code, and the first identification code is represented by hexadecimal corresponding to a reference parameter in a data length standard matrix L0 (L10, L20 and L30);
if the second reference length is larger than or equal to the data length of the data to be transmitted and is larger than the first reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a second identification code, wherein the second identification code is decimal representation corresponding to reference parameters in a data length standard matrix L0 (L10, L20 and L30);
if the third reference length is larger than or equal to the data length of the data to be transmitted and larger than the second reference length, encoding the data to be transmitted according to the encoding rule of the data to be transmitted and a third identification code, wherein the third identification code is represented by an octal system corresponding to the reference parameter in a data length standard matrix L0 (L10, L20 and L30);
and if the data length of the data to be transmitted is larger than the third reference length, encoding the data to be transmitted, wherein the encoding rule is the data to be transmitted plus a fourth identification code, and the fourth identification code is binary representation corresponding to the reference parameters in a data length standard matrix L0 (L10, L20, L30).
4. The method of channel time allocation and access control processing for communications in a wireless network of claim 3,
a carrier frequency matrix C0 (C10, C20, C30 and C40) is preset, wherein C10 represents a first carrier frequency band of data to be transmitted, C20 represents a second carrier frequency band of the data to be transmitted, C30 represents a third carrier frequency band of the data to be transmitted, and C40 represents a fourth carrier frequency band of the data to be transmitted;
if the actual carrier frequency band of the data to be transmitted belongs to the first carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a sixth identification code, and the sixth identification code is represented by hexadecimal corresponding to a reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the second carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a seventh identification code, and the seventh identification code is decimal representation corresponding to the benchmark parameters in a carrier frequency matrix C0 (C10, C20, C30 and C40);
if the actual carrier frequency band of the data to be transmitted belongs to the third carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with an eighth identification code, and the eighth identification code is represented by an octal system corresponding to the reference parameter in a carrier frequency matrix C0 (C10, C20, C30 and C40);
and if the actual carrier frequency band of the data to be transmitted belongs to the fourth carrier frequency band, encoding the data to be transmitted, wherein the encoding rule is that the data to be transmitted is added with a ninth identification code, and the ninth identification code is binary representation corresponding to the reference parameter in the carrier frequency matrix C0 (C10, C20, C30 and C40).
5. The method of channel time allocation and access control processing for communications in a wireless network of claim 4,
after data to be transmitted is coded, a channel needs to be selected for data transmission, specifically, the selection of a transmission time node is set according to the network condition, a time node matrix T (T1, T2, T3, T4) is set, wherein T1 represents a first time node, T2 represents a second time node, T3 represents a third time node, T4 represents a fourth time node, time lags from the first time node to the fourth time node are sequentially increased, a transmission level Ai of the data to be transmitted is determined according to the length of a coded data packet, and if the transmission level Ai of the data to be transmitted is not greater than a first transmission level a1, the first time node is adopted for transmission;
if the first transmission level A1< the transmission level Ai of the data to be transmitted is not more than the second transmission level A2, a second time node is adopted for transmission;
if the second transmission level A2< the transmission level Ai of the data to be transmitted is not more than the third transmission level A3, a third time node is adopted for transmission;
if the transmission level Ai of the data to be transmitted is greater than the third transmission level a3, a fourth time node is used for transmission.
6. The method of channel time allocation and access control processing for communications in a wireless network of claim 5,
determining a transmission level Ai = a × Li + b × Ci of data to be transmitted, where a is a data length weight coefficient, b is a carrier frequency weight coefficient, and a + b = 1.
7. The method of channel time allocation and access control processing for communications in a wireless network of claim 6,
if the reference parameters in the data length standard matrix L0 (L10, L20, L30) are hexadecimal, Li is assigned to 4, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) are decimal, Li is assigned to 3, if the reference parameters in the data length standard matrix L0 (L10, L20, L30) are octal, Li is assigned to 2, and if the reference parameters in the data length standard matrix L0 (L10, L20, L30) are binary, Li is assigned to 1.
8. The method of channel time allocation and access control processing for communications in a wireless network of claim 7,
if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30, C40) are hexadecimal, Ci is assigned 4, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30, C40) are decimal, Ci is assigned 3, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30, C40) are octal, Ci is assigned 2, if the reference parameters of the carrier frequency matrix C0 (C10, C20, C30, C40) are binary, Ci is assigned 1.
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