CN117202307A - Wireless ad hoc network data transmission method with multiple physical channels and wireless ad hoc network - Google Patents
Wireless ad hoc network data transmission method with multiple physical channels and wireless ad hoc network Download PDFInfo
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Abstract
The application relates to a wireless self-organizing network data transmission method with multiple physical channels and a wireless self-organizing network, when a message is required to be transmitted, traversing from a last transmission channel in a physical channel list, judging whether the link transmission quality of a current traversing channel is similar to that of the last transmission channel or not according to a preset threshold value, if the link transmission quality of the current traversing channel is similar to that of the last transmission channel, taking the current traversing channel as the current transmission channel, transmitting the message by utilizing the current transmission channel, and updating the last transmission channel to the current transmission channel. When a large number of messages need to be sent, a plurality of physical channels with similar transmission quality can be sequentially selected for message transmission, so that the wireless transmission capacity of the node is obviously enhanced, and the throughput of the ad hoc network is effectively improved.
Description
Technical Field
The present application relates to the field of wireless ad hoc networks, and in particular, to a wireless ad hoc network data transmission method and a wireless ad hoc network with multiple physical channels.
Background
An ad hoc network is formed by dynamic connection of nodes, each of which is equal. The node can be used as a client to receive messages from other nodes, can be used as a source to send messages outwards, and can be used as a routing node to relay and forward.
As the application scenes of the ad hoc network are more and more, the data to be processed is also greatly increased. The transmission speed of the ad hoc network, the multimedia application, the improvement of user experience, the support of large-scale connection, the reliability of the network and the saving of time and resources are all urgently needed to be improved, and the key of the improvement is to improve the data throughput of the ad hoc network.
However, in the prior art, throughput is improved by adopting an optimization protocol and networking overhead, but due to the limitation of the wireless ad hoc network physical layer transmission technology, the improvement degree of the current wireless ad hoc network in a manner of improving network throughput by adopting the optimization protocol and the networking overhead is limited, and the network throughput cannot be improved remarkably.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a wireless ad hoc network data transmission method and a wireless ad hoc network with multiple physical channels, which can improve data throughput.
A wireless ad hoc network data transmission method having multiple physical channels, the method being implemented in each node in a wireless ad hoc network, each node having multiple physical channels, the method comprising:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
In one embodiment, the determining whether the link transmission quality of the current traversal channel and the last transmission channel is similar according to the preset threshold sequentially includes:
calculating a link transmission difference value between the current traversal channel and the last transmission channel, and if the link transmission difference value is smaller than the preset threshold value, enabling the link transmission quality of the current traversal channel to be similar to that of the last transmission channel;
if the link transmission difference value is larger than the preset threshold value, the link transmission quality of the current traversal channel is not similar to that of the last transmission channel.
In one embodiment, if the link transmission quality of the current traversed channel is not similar to that of the last transmitted channel, traversing the next channel according to the sequence in the physical channel list.
In one embodiment, before judging whether the link transmission quality of the current traversal channel is similar to that of the last transmission channel in sequence according to a preset threshold, judging whether the current traversal channel is the last transmission channel, if so, skipping the current traversal channel, and traversing the next channel.
In one embodiment, each node in the wireless ad hoc network adds a plurality of physical channels to the physical channel list of the respective node.
In one embodiment, a wireless ad hoc network protocol is simultaneously operated on a plurality of physical channels of each node, and after each node acquires a large number of messages to be sent, the wireless ad hoc network protocol sequentially selects the plurality of physical channels to respectively send the messages.
The application also provides a wireless ad hoc network data transmission device with multiple physical channels, which comprises:
the message acquisition module is used for acquiring a message to be sent;
the current transmission channel selection module is used for traversing from the last transmission channel in the physical channel list, judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel or not in sequence according to a preset threshold value, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and the message sending module is used for sending the message by using the current sending channel and updating the last sending channel into the current sending channel.
The application also provides a wireless ad hoc network, which comprises a plurality of nodes, wherein each node is provided with a plurality of physical channels, and the following steps are implemented in each node:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
According to the wireless ad hoc network data transmission method and the wireless ad hoc network with the multiple physical channels, when a message needs to be transmitted, the message is transmitted by using the current traversing channel as the current transmitting channel and the current transmitting channel, the message is transmitted by using the current transmitting channel, and the last transmitting channel is updated as the current transmitting channel by sequentially judging whether the link transmission quality of the current traversing channel and the last transmitting channel is similar according to the preset threshold value in the physical channel list. When a large number of messages need to be sent, a plurality of physical channels with similar transmission quality can be sequentially selected for message transmission, so that the wireless transmission capacity of the node is obviously enhanced, and the throughput of the ad hoc network is effectively improved.
Drawings
Fig. 1 is a flow chart of a wireless ad hoc network data transmission method with multiple physical channels according to an embodiment;
FIG. 2 is a schematic diagram of a specific flow for selecting channels for message transmission in one embodiment;
fig. 3 is a block diagram of a wireless ad hoc network data transmission device with multiple physical channels according to an embodiment;
fig. 4 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
As shown in fig. 1, a method for transmitting data in a wireless ad hoc network with multiple physical channels is provided, and the method is implemented in each node in a wireless ad hoc network, and each node has multiple physical channels, and specifically includes the following steps:
step S100, obtaining a message to be sent.
Step S110, in the physical channel list, traversing from the last transmission channel, judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold value, and if the link transmission quality of the current traversing channel is similar to that of the last transmission channel, taking the current traversing channel as the current transmission channel.
Step S120, the message is sent by using the current sending channel, and the last sending channel is updated to the current sending channel.
In this embodiment, by setting a plurality of physical channels for each node in the ad hoc network, and selecting one physical channel for transmitting a current message through transmission quality when each node needs to transmit, when a large number of messages need to be transmitted, a plurality of channels with similar transmission quality can be selected in turn for transmitting, thereby improving throughput of the ad hoc network.
In this embodiment, since each node has a plurality of physical channels, the physical channels available to the node are added to the list of physical channels at each node.
In step S110, sequentially determining whether the link transmission quality of the current traversal channel and the last transmission channel is similar according to the preset threshold includes: and calculating a link transmission difference value between the current traversal channel and the last transmission channel, and if the link transmission difference value is smaller than the preset threshold value, enabling the link transmission quality of the current traversal channel to be similar to that of the last transmission channel. If the link transmission difference is larger than the preset threshold, the link transmission quality of the current traversing channel is not similar to that of the last transmitting channel.
In this embodiment, if the link transmission quality of the current traversed channel is not similar to that of the last transmitted channel, traversing the next channel according to the order in the physical channel list.
After the current sending channel is selected in step S110, the channel is used to transmit the message, and the last sending channel is updated according to the channel, so as to send the next message.
Here, the "last transmission channel", "current channel" and "current transmission channel" appearing in the present method are not a specific physical channel fixedly referred to, but are changed each time a transmission task is performed.
In this embodiment, after each node obtains a message that needs to be sent, a step of specifically selecting a sending channel is shown in fig. 2.
When each node specifically realizes the steps, three parameters are set as follows: channel_last (Last Channel sent), i.e. the Channel selected Last time the message was sent. Channel_curr (this time of sending Channel), i.e. the Channel selected when the message is sent this time. Channel_temp (currently traversing Channel), i.e., the current Channel traversed in the wireless Channel list. At the same time, a transmission quality threshold Diff, i.e. the maximum link quality difference allowed for two different channel transmissions, needs to be set.
The channel_last of the Last transmitted Channel is initialized to the Channel with the best link transmission quality in the wireless Channel list.
And then, when a certain node has a message to be sent, traversing the wireless Channel list from the channel_last sent, judging whether the channel_Temp of the current traversing Channel is the channel_last sent or not, if so, skipping the current traversing Channel, and continuing traversing the next Channel.
If not, comparing the link transmission quality of the current traversal Channel channel_Temp with the link transmission quality of the Last transmission Channel channel_Last; if the difference value of the link transmission quality is larger than the threshold value Diff, skipping the current traversing channel, continuing traversing the next channel, and if the difference value of the link transmission quality is smaller than or equal to the threshold value Diff, selecting the channel for transmission by the current transmission.
Finally, after the selection of the current transmission channel is completed, the message is transmitted to the optimal next hop reaching the message destination node through the channel; updating the channel_last of the Last transmission Channel as the current transmission Channel, and carrying out the next message data transmission.
In this embodiment, the method is implemented by using a wireless ad hoc network protocol, so that the wireless ad hoc network protocol is simultaneously operated on a plurality of physical channels of each node, and after each node acquires a large number of messages to be sent, the wireless ad hoc network protocol sequentially selects the plurality of physical channels to send the messages respectively.
In this embodiment, a wireless ad hoc network is further provided, where the wireless ad hoc network includes a plurality of nodes, each node has a plurality of physical channels, and the steps of the wireless ad hoc network data transmission method with a plurality of physical channels are implemented in each node.
In the above wireless ad hoc network data transmission method with multiple physical channels, aiming at the problems that the current wireless ad hoc network has limited network throughput due to the characteristic of wireless transmission and the current wireless ad hoc network has limited improvement degree by optimizing a protocol and networking overhead and can not obviously improve the magnitude of network throughput due to the limitation of the physical layer transmission technology of the wireless ad hoc network, the multi-channel network throughput improvement method suitable for the wireless ad hoc network is provided.
It should be understood that, although the steps in the flowchart of fig. 1 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in fig. 1 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, nor do the order in which the sub-steps or stages are performed necessarily performed in sequence, but may be performed alternately or alternately with at least a portion of other steps or sub-steps of other steps.
In one embodiment, as shown in fig. 3, there is provided a wireless ad hoc network data transmission apparatus having multiple physical channels, including: the message obtaining module 200, the current sending channel selecting module 210 and the message sending module 220, wherein:
the message obtaining module 200 is configured to obtain a message to be sent;
the current transmission channel selection module 210 is configured to sequentially determine, in the physical channel list, whether link transmission qualities of a current traversal channel and a last transmission channel are similar according to a preset threshold, from a last transmission channel, and if the link transmission qualities of the current traversal channel and the last transmission channel are similar, take the current traversal channel as the current transmission channel;
and the message sending module 220 sends the message by using the current sending channel, and updates the last sending channel to the current sending channel.
The specific limitation of the wireless ad hoc network data transmission device with multiple physical channels can be referred to as the limitation of the wireless ad hoc network data transmission method with multiple physical channels, and the description thereof is omitted herein. The modules in the wireless ad hoc network data transmission device with multiple physical channels may be all or partially implemented by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 4. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program, when executed by a processor, implements a wireless ad hoc network data transmission method with multiple physical channels. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by persons skilled in the art that the architecture shown in fig. 4 is merely a block diagram of some of the architecture relevant to the present inventive arrangements and is not limiting as to the computer device to which the present inventive arrangements are applicable, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided comprising a memory and a processor, the memory having stored therein a computer program, the processor when executing the computer program performing the steps of:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the steps of:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in embodiments provided herein may include non-volatile and/or volatile memory. The nonvolatile memory can include Read Only Memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous Link DRAM (SLDRAM), memory bus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), among others.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (10)
1. A method for transmitting data in a wireless ad hoc network having a plurality of physical channels, the method being implemented in each node in the wireless ad hoc network, each node having a plurality of physical channels, the method comprising:
acquiring a message to be sent;
in the physical channel list, traversing from the last transmission channel, sequentially judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel according to a preset threshold, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and transmitting the message by using the current transmission channel, and updating the last transmission channel to the current transmission channel.
2. The wireless ad hoc network data transmission method according to claim 1, wherein said sequentially determining whether link transmission quality of the current traversal channel and the last transmission channel is similar according to a preset threshold value comprises:
calculating a link transmission difference value between the current traversal channel and the last transmission channel, and if the link transmission difference value is smaller than the preset threshold value, enabling the link transmission quality of the current traversal channel to be similar to that of the last transmission channel;
if the link transmission difference value is larger than the preset threshold value, the link transmission quality of the current traversal channel is not similar to that of the last transmission channel.
3. The wireless ad hoc network data transmission method according to claim 2, wherein if the link transmission quality of the current traversed channel and the last transmitted channel are not similar, traversing the next channel according to the order in the physical channel list.
4. The wireless ad hoc network data transmission method according to claim 3, wherein before judging whether the link transmission quality of the current traversing channel is similar to that of the last transmitting channel in sequence according to a preset threshold, further judging whether the current traversing channel is the last transmitting channel, if so, skipping the current traversing channel, and traversing the next channel.
5. The wireless ad hoc network data transmission method according to any one of claims 1 to 4, wherein each node in the wireless ad hoc network adds a plurality of physical channels to be possessed to the physical channel list of the respective node.
6. The wireless ad hoc network data transmission method according to claim 5, wherein a wireless ad hoc network protocol is simultaneously operated on a plurality of physical channels of each node, and when each node acquires a large number of messages to be transmitted, the wireless ad hoc network protocol sequentially selects the plurality of physical channels to transmit the messages respectively.
7. A wireless ad hoc network data transmission apparatus having multiple physical channels, the apparatus comprising:
the message acquisition module is used for acquiring a message to be sent;
the current transmission channel selection module is used for traversing from the last transmission channel in the physical channel list, judging whether the link transmission quality of the current traversing channel is similar to that of the last transmission channel or not in sequence according to a preset threshold value, and taking the current traversing channel as the current transmission channel if the link transmission quality of the current traversing channel is similar to that of the last transmission channel;
and the message sending module is used for sending the message by using the current sending channel and updating the last sending channel into the current sending channel.
8. A wireless ad hoc network comprising a plurality of nodes, each of the nodes having a plurality of physical channels, the steps of the method according to any one of claims 5 to 6 being performed in each of the nodes.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 5 to 6 when the computer program is executed.
10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 5 to 6.
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| CN202311399590.5A CN117202307A (en) | 2023-10-26 | 2023-10-26 | Wireless ad hoc network data transmission method with multiple physical channels and wireless ad hoc network |
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| CN202311399590.5A CN117202307A (en) | 2023-10-26 | 2023-10-26 | Wireless ad hoc network data transmission method with multiple physical channels and wireless ad hoc network |
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