CN114070668B - Power line carrier communication collision domain centralized control method, system and storage medium - Google Patents
Power line carrier communication collision domain centralized control method, system and storage medium Download PDFInfo
- Publication number
- CN114070668B CN114070668B CN202111357235.2A CN202111357235A CN114070668B CN 114070668 B CN114070668 B CN 114070668B CN 202111357235 A CN202111357235 A CN 202111357235A CN 114070668 B CN114070668 B CN 114070668B
- Authority
- CN
- China
- Prior art keywords
- node
- power
- centralized control
- line carrier
- power line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0829—Packet loss
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0823—Errors, e.g. transmission errors
- H04L43/0847—Transmission error
Abstract
The invention relates to the technical field of communication, in particular to a centralized control method, a centralized control system and a storage medium for a power line carrier communication collision domain, wherein the method comprises the following steps: sending messages to each node in the network completing networking; the message comprises time node information and power parameter information which are used for adjusting the upper limit of the transmission power of each node; controlling each node to carry out channel assessment work in a time period appointed in the time node information; comparing and analyzing the current channel evaluation work result with the previously collected channel evaluation work result, judging whether the overall communication quality of the current networking is improved or not, if so, adjusting the upper limit of the transmitting power in the power parameter information downwards, and repeating the steps; if not, the loop is exited. The invention can ensure the communication quality among all the nodes and reduce the power loss of all the nodes.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a centralized control method, a centralized control system and a storage medium for a power line carrier communication collision domain.
Background
When a node in the communication network signals another node, the nodes form a collision domain, except the destination node, how many nodes can receive the information. In each communication network, collision domains are a problem that needs to be controlled. If the control is not proper, the communication quality and the communication efficiency are reduced, especially in a network system adopting a CSMA communication mode. At present, in order to deal with a collision domain to ensure communication efficiency, the transmission power of a node sending a signal is mostly adjusted upwards in a solution mode, so that the signal to noise ratio is improved, and a target node can receive the signal, but the background noise of the whole communication network is increased, so that the transmission power of other nodes sending the signal can be adjusted upwards, the signal to noise ratio is improved, the corresponding target node can receive information, and the sequential circulation is extremely easy to cause the continuous increase of the power lost by the whole communication network, thereby causing great waste. For example, there are node a, node B, node C and node D in the communication network, when node a sends a signal to node B, node B is used as the destination node, and node C and node D form a collision domain, and if node C also sends a signal to node D at this time, node C will be used as the background noise of node a and node B. To ensure that node B can receive the signal, node a will adjust the transmit power up, resulting in increased power consumption. At this time, node a is used as background noise of node C and node D, and node C can only adjust the transmission power up to ensure that node D can receive signals, which also results in increased power loss. As can be seen from the example, the nodes affect each other and become background noise, and in order to ensure the communication quality, the transmission power of the node sending out the signal can only be continuously adjusted up, which results in an increase in power loss. And when the communication quality is not good, a signal retransmission mechanism may be triggered, further resulting in an increase in power consumption.
Disclosure of Invention
One of the objectives of the present invention is to provide a centralized control method for a collision domain in power line carrier communication, which can ensure the communication quality between nodes and reduce the power loss of each node.
In order to achieve the above object, a power line carrier communication collision domain centralized control method is provided, which includes the following steps:
s1, sending a message to each node in a network completing networking; the message comprises time node information and power parameter information which are used for adjusting the upper limit of the transmission power of each node;
s2, controlling each node to carry out channel assessment work in a time period appointed in the time node information;
s3, comparing and analyzing the result of the current channel assessment work with the previously collected result of the channel assessment work, judging whether the overall communication quality of the current networking is improved, if so, adjusting down the upper limit of the transmitting power in the power parameter information, and repeating the steps from S1 to S3; if not, the loop is exited.
The principle and the advantages are as follows:
the method comprises the steps of firstly sending a message to each node in the networking with the concentrator as the center, conveniently reducing the upper limit of transmitting power of each node, then carrying out channel assessment work among the nodes in a time period appointed in time node information so as to conveniently obtain the communication quality among the nodes, conveniently obtaining the overall communication quality of the networking with the concentrator in an average calculation mode, and further conveniently analyzing whether the overall communication quality of the networking is improved. If the overall communication quality is improved, it means that the background noise of the whole networking is reduced to a certain extent by means of allowing the corresponding node to lower the upper limit of the transmission power, so that the transmission power is reduced while the communication quality is ensured, and the electric energy is saved. And then gradually reducing the upper limit of the transmitting power of each node through continuous iteration circulation until the optimal upper limit of the transmitting power of all nodes in the network, namely the minimum collision domain, is found, so as to eliminate the interference of background noise as much as possible, and finally reduce the power loss of each node while ensuring the communication quality among each node.
Further, the step S3 further includes the steps of:
and when the overall communication quality is judged to be improved, judging whether a node is disconnected in the networking, if not, adjusting the upper limit of the transmitting power in the power parameter information downwards, and repeating the steps from S1 to S3.
Has the advantages that: by adding secondary judgment on whether a node is disconnected or not in networking, the overall integrity of networking can be ensured while ensuring that the overall communication quality of networking has no income and the power is reduced, and the problem of defects in networking is avoided.
Further, in step S3, when it is determined that the overall communication quality is improved and it is determined that there is a node drop that meets the set number range, adding the dropped node into the exception node list, and setting the exception node list in the message of the next round of the step S1; the exception node list is used for the corresponding node to cancel the limitation of the upper limit of the transmitting power, or to specify the upper limit of the transmitting power, or to restore the upper limit of the transmitting power of the corresponding node to the value adjusted last time.
Has the advantages that: by setting the exception node list and taking corresponding measures, the disconnected node is prevented from continuously separating from the networking, so that the networking is incomplete.
Further, the method also comprises the following steps:
when the step S1 is repeatedly executed, selecting a preset number of nodes which respond according to the message from each node in the step S1; if the networking is judged to be improved in the overall communication quality and the nodes meeting the set number range are disconnected in the step S3 which is repeatedly executed, each node in the networking is enabled to continuously maintain the current state and quit the circulation; or the upper limit of the transmitting power of the disconnected node and the father node thereof is increased in the message of the next round of the step S1.
Has the advantages that: when the steps S1-S3 are repeatedly executed, a preset number of nodes can be selected from the multiple nodes to perform small-range adjustment, the speed of achieving the target in networking can be increased, and therefore the overall adjustment efficiency of the networking is improved.
Further, the method also comprises the following steps:
and S4, after the loop exits, maintaining the state of each node in the network without changing the set time length, and repeatedly executing the steps S1 to S3 when the maintained time meets the set time length.
Has the advantages that: after the power of each node is reduced to enable the overall communication quality of the networking to achieve the target of not improving, the state of each node in the networking is maintained for a set time, effective adjustment of each node is guaranteed, and accidental errors are prevented from influencing adjustment.
Further, the method also comprises the following steps:
and S5, after the upper power limit of the node is determined, the node adjusts the actual transmitting power within the upper power limit range according to the result of the channel estimation work.
Has the advantages that: one-to-many unified adjustment can be completed in a centralized mode, so that the transmission power upper limit of each node is found while the whole networking communication quality is ensured to be unchanged and the transmission power of each node is reduced, namely, the constraint on the whole networking power upper limit is completed to save electric energy and reduce loss. However, the lower limit of a single node is not restricted by the centralized control mode, that is, the actual transmission power of each specific node can be lower, so that the lower limit of the transmission power of the node is found by adjusting the actual transmission power within the power upper limit range according to the result of the channel estimation work, that is, the lower limit of the transmission power of the node is obtained in a distributed manner, so that the centralized control mode is combined with the distributed control mode, the overall communication quality of the networking is unchanged, the overall power is further reduced, and the electric energy is further saved.
Further, the time node information includes a start time T0 and an end time T1, the power parameter information is an upper limit of the transmission power of the adjustment node, and the adjustment range is a multiple value of reducing the set power unit value; the overall communication quality comprises an average signal-to-noise ratio (SNR) or an average Packet Error Rate (PER) of the concentrator network.
Further, in step S3, the method further includes the steps of:
and when the overall communication quality of the networking is reduced or the number of the disconnected nodes exceeds a set number range compared with the prior one, the upper limit of the transmitting power in the power parameter information is returned to the value before adjustment in the message of the next round of loop step S1.
Has the advantages that: the method can ensure that the network returns to the normal state within the shortest time, and avoid unnecessary time waste.
The second purpose of the present invention is to provide a centralized control system for a collision domain of power line carrier communication, which includes a concentrator, where the concentrator is used as a master node, the master node is connected to a plurality of slave nodes, the slave nodes include a parent node and a child node, the parent node is a slave node connected to a plurality of child nodes, and the system is implemented by applying the above centralized control method for a collision domain of power line carrier communication.
The invention also provides a computer-readable storage medium, where the computer-readable storage medium includes a power line carrier communication collision domain centralized control program, and when the power line carrier communication collision domain centralized control program is executed by a processor, the steps of the power line carrier communication collision domain centralized control method are implemented.
Drawings
Fig. 1 is a flowchart of a centralized control method for a collision domain of power line carrier communication according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a concentrator network;
fig. 3 is a block diagram of a flow of message delivery and channel estimation in a concentrator networking.
Detailed Description
The following is further detailed by way of specific embodiments:
example one
A centralized control method for a power line carrier communication collision domain is characterized in that a concentrator is used as a networking of a control center CCO, other nodes are slave nodes, the control center CCO is connected with a plurality of slave nodes, the slave nodes comprise a father node PCO and a child node STA, and the father node PCO is a slave node connected with the child node STA.
After the networking of the concentrators is finished, an overall optimal collision domain evaluation is performed, which is basically as shown in fig. 1 and specifically includes the following steps:
s1, a concentrator sends a message to each node in a network; in this embodiment, as shown in fig. 2, the control center CCO first sends a packet to its corresponding slave nodes (parent node PCO1 and child nodes STA1, STA2, and STA 3), where the parent node PCO1 sends a packet to its corresponding child nodes STA (parent node PCO2 and PCO3 and child nodes STA4 and STA 5), the parent node PCO2 sends a packet to its corresponding child nodes STA (STA 6 and STA 7), and the parent node PCO3 sends a packet to its corresponding child nodes STA (STA 8 and STA 9), and extends continuously and is similar to a tree diagram structure. The message is a broadcast control message, and the broadcast control message can be placed in a beacon message. The message comprises time node information, power parameter information and an exception node list of each node for adjusting the upper limit of the transmitting power;
time node information: the method comprises the steps that a node adjusts the starting time T0 and the ending time T1 of the upper limit of the transmitting power;
power parameter information: the nodes (father node PCO and child node STA) which currently receive the message adjust the upper limit of the transmitting power thereof by themselves, and the adjusting amplitude is a multiple value for reducing the set power unit value; in this embodiment, the power unit value is set to 1db;
list of exception nodes: the corresponding nodes (the parent node PCO and the child node STA) cancel the limitation of the transmission power upper limit, or specify the transmission power upper limit, or restore the transmission power upper limit of the corresponding node to the last adjusted value and fix it.
S2, controlling the channel assessment work (only the functions defined in the national network and the protocol at present) between the nodes (such as between a father node PCO and a child node STA, between a control center CCO and the father node PCO) in the time period appointed in the time node information as shown in figure 3; the channel estimation belongs to the prior art, and the improvement thereof is not related in this embodiment, so detailed description is not given.
S3, comparing and analyzing the result of the current channel assessment work with the result of the channel assessment work collected in the past, firstly judging whether the overall communication quality of the current concentrator networking is improved or not, and then judging whether a node in the concentrator networking is disconnected or not; the overall communication quality comprises an average signal-to-noise ratio (SNR) or an average Packet Error Rate (PER) of the concentrator network. A higher average signal-to-noise ratio SNR indicates better overall communication quality, and a lower average packet error rate PER indicates better overall communication quality. In this embodiment, the signal-to-noise ratio SNR or the packet error rate PER of each node is calculated first, and finally the average signal-to-noise ratio SNR or the average packet error rate PER of the concentrator network is obtained in a manner of summing and calculating an average value.
The step S3 specifically includes the following steps:
s301, when the networking is judged that the overall communication quality is improved and no node is disconnected, the upper limit of the transmitting power in the power parameter information is adjusted downwards; and (4) repeatedly executing the steps S1-S3 until the networking is judged that the overall communication quality is not improved and no node is disconnected.
S302, when the overall communication quality is judged to be improved and the nodes meeting the set number range are judged to be disconnected, the disconnected nodes are added into an exception node list; and simultaneously, adjusting the upper limit of the transmitting power in the power parameter information downwards, and repeating the steps S1-S3 until the networking is judged that the overall communication quality is not improved and no node is disconnected.
And S303, when the overall communication quality is judged to be reduced or the number of the disconnected nodes exceeds a set number range, the upper limit of the transmitting power in the power parameter information is returned to a value before adjustment in the message of the next round of step S1. And (4) repeatedly executing the steps S1-S3 until the networking is judged that the overall communication quality is not improved and no node is disconnected.
And S4, after the loop of the steps S1 to S3 is exited, maintaining the state of each node in the networking for a set time length Y unchanged, and repeatedly executing the steps S1 to S3 again when the maintained time meets the set time length Y until the networking is judged that the overall communication quality of the networking is not increased (namely the overall communication quality is not improved) and no node is disconnected.
And S5, after the upper power limit of the node is determined, the node adjusts the actual transmitting power within the upper power limit range according to the result of the channel estimation work. In this embodiment, the following are specific: after the upper power limits of the father node and the child node are determined, the communication quality between the father node and the child node is kept unchanged, and the actual power of the father node and the actual power of the child node are adjusted down frequently according to the transmission power until the lower transmission power limits of the father node and the child node are found. Steps S1-S4 of the scheme realize centralized control and complete the constraint on the upper limit of the whole networking power. However, the centralized control does not restrict the lower limit of a single node, i.e. the actual transmit power of each specific node may be lower. In step S5, the actual power of the father node and the child node is adjusted down multiple times to find the lower limit of the transmitting power of the father node and the child node by ensuring that the communication quality between the father node and the child node remains unchanged, so that the existing distributed control and adjustment is realized.
A centralized control system of a power line carrier communication collision domain comprises a concentrator, wherein the concentrator is used as a main node, the main node is connected with a plurality of slave nodes, each slave node comprises a father node and a child node, the father node is the slave node connected with the child nodes, and the system is realized by applying the centralized control method of the power line carrier communication collision domain.
A computer-readable storage medium, where the computer-readable storage medium includes a power line carrier communication collision domain centralized control program, and when the power line carrier communication collision domain centralized control program is executed by a processor, the steps in the power line carrier communication collision domain centralized control method are implemented.
It can be understood by those skilled in the art that all or part of the processes in the above-described method for centralized control of a power line carrier communication collision domain can be implemented by instructing related hardware through a computer program, where the program can be stored in a non-volatile computer-readable storage medium, and when executed, the program can include the processes of the above-described embodiments of the method for centralized control of a power line carrier communication collision domain. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile 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), rambus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
Example two
The difference between the second embodiment and the first embodiment is that the upper limit of the transmission power of each node in the whole networking does not need to be controlled, and the upper limit of the transmission power of one or more nodes can be specified specifically, so as to improve the overall adjustment efficiency of the networking, and the specific steps are as follows:
when the step S1 is repeatedly executed, selecting a preset number of nodes which respond according to the message from each node in the step S1; and executing the steps S2-S3 until the overall communication quality of the current concentrator networking is compared with that before, no benefit is generated and no node is disconnected. If the networking is judged to be improved in the overall communication quality and the nodes meeting the set number range are disconnected in the step S3 which is repeatedly executed, each node in the networking is enabled to continuously maintain the current state and quit the circulation; or the upper limit of the transmitting power of the disconnected node and the father node thereof is increased in the message of the next round of loop step S1.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is described herein in more detail, so that a person of ordinary skill in the art can understand all the prior art in the field and have the ability to apply routine experimentation before the present date, after knowing that all the common general knowledge in the field of the invention before the application date or the priority date of the invention, and the person of ordinary skill in the art can, in light of the teaching provided herein, combine his or her own abilities to complete and implement the present invention, and some typical known structures or known methods should not become an obstacle to the implementation of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The centralized control method for the power line carrier communication collision domain is characterized by comprising the following steps:
s1, sending a message to each node in a network completing networking; the message comprises time node information and power parameter information which are used for adjusting the upper limit of the transmission power of each node;
s2, controlling each node to carry out channel assessment work in a time period appointed in the time node information;
s3, comparing and analyzing the result of the current channel assessment work with the previously collected result of the channel assessment work, judging whether the overall communication quality of the current networking is improved, if so, adjusting down the upper limit of the transmitting power in the power parameter information, and repeating the steps from S1 to S3; if not, the loop is exited.
2. The power line carrier communication collision domain centralized control method according to claim 1, characterized in that: in the step S3, the method further includes the following steps:
and when the overall communication quality is judged to be improved, judging whether a node is disconnected in the networking, if not, adjusting the upper limit of the transmitting power in the power parameter information downwards, and repeating the steps from S1 to S3.
3. The power line carrier communication collision domain centralized control method according to claim 2, characterized in that: in step S3, when it is determined that the overall communication quality is improved and it is determined that nodes meeting the set number range are dropped, adding the dropped nodes into an exception node list, and setting the exception node list in the message of the next round of loop step S1; the exception node list is used for the corresponding node to cancel the limitation of the upper limit of the transmitting power, or to specify the upper limit of the transmitting power, or to restore the upper limit of the transmitting power of the corresponding node to the value adjusted last time.
4. The power line carrier communication collision domain centralized control method according to claim 2, characterized in that: further comprising the steps of:
when the step S1 is repeatedly executed, selecting a preset number of nodes which respond according to the message from each node in the step S1; if the networking is judged to be improved in the overall communication quality and the nodes meeting the set number range are disconnected in the step S3 which is repeatedly executed, each node in the networking is enabled to continuously maintain the current state and quit the circulation; or increasing the upper limit of the transmitting power of the offline node and the father node thereof and performing the next round of circulation.
5. The power line carrier communication collision domain centralized control method according to claim 1, characterized in that: further comprising the steps of:
and S4, after the loop exits, maintaining the state of each node in the network for a set time length unchanged, and repeatedly executing the steps S1 to S3 when the maintained time meets the set time length.
6. The power line carrier communication collision domain centralized control method according to claim 1, characterized in that: further comprising the steps of:
and S5, after the upper power limit of the node is determined, the node adjusts the actual transmitting power within the upper power limit range according to the result of the channel estimation work.
7. The power line carrier communication collision domain centralized control method according to claim 1, characterized in that: the time node information comprises a starting time T0 and an ending time T1, the power parameter information is the upper limit of the transmitting power of the adjusting node, and the adjusting amplitude is a multiple value for reducing the set power unit value; the overall communication quality comprises the average signal-to-noise ratio (SNR) or the average Packet Error Rate (PER) of the concentrator network.
8. The centralized control method for collision domains in power line carrier communication according to any one of claims 1 to 4, wherein: in step S3, the method further includes the steps of:
and when the overall communication quality of the networking is reduced or the number of the disconnected nodes exceeds a set number range compared with the prior one, the upper limit of the transmitting power in the power parameter information is returned to the value before adjustment in the message of the next round of loop step S1.
9. Centralized control system in power line carrier communication conflict domain, its characterized in that: the system comprises a concentrator, wherein the concentrator is connected with a plurality of slave nodes, the slave nodes comprise a parent node and a child node, the parent node is the slave node connected with a plurality of child nodes, and the system is realized by applying the power line carrier communication collision domain centralized control method as claimed in any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that: the computer readable storage medium includes a power line carrier communication collision domain centralized control program, which when executed by a processor, implements the steps of the power line carrier communication collision domain centralized control method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111357235.2A CN114070668B (en) | 2021-11-16 | 2021-11-16 | Power line carrier communication collision domain centralized control method, system and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111357235.2A CN114070668B (en) | 2021-11-16 | 2021-11-16 | Power line carrier communication collision domain centralized control method, system and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114070668A CN114070668A (en) | 2022-02-18 |
| CN114070668B true CN114070668B (en) | 2022-10-14 |
Family
ID=80273104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111357235.2A Active CN114070668B (en) | 2021-11-16 | 2021-11-16 | Power line carrier communication collision domain centralized control method, system and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114070668B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521288A (en) * | 2018-04-08 | 2018-09-11 | 重庆物奇科技有限公司 | The adaptive approach in control hazard domain in power line carrier communication |
| CN108964715A (en) * | 2018-07-25 | 2018-12-07 | 北京智芯微电子科技有限公司 | The method for reducing power line carrier communication radiation interference |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009003724A1 (en) * | 2009-04-02 | 2010-10-07 | Softing Ag | Method for optimizing network structures in radio networks |
| CN103873112A (en) * | 2014-03-04 | 2014-06-18 | 北京世壮物联科技有限公司 | Intelligent power line carrier synchronous control method |
| CN106452507B (en) * | 2016-12-07 | 2017-12-26 | 南京万形电气有限公司 | A kind of self-healing ad hoc network method based on OFDM power line carrier communications |
| US10349427B2 (en) * | 2017-04-13 | 2019-07-09 | Kabushiki Kaisha Toshiba | Method for scheduling closed loop information in wireless networks |
| KR20200034507A (en) * | 2018-09-21 | 2020-03-31 | 삼성전자주식회사 | Method and apparatus for controlling transmitting power in a wireless communication system |
-
2021
- 2021-11-16 CN CN202111357235.2A patent/CN114070668B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521288A (en) * | 2018-04-08 | 2018-09-11 | 重庆物奇科技有限公司 | The adaptive approach in control hazard domain in power line carrier communication |
| CN108964715A (en) * | 2018-07-25 | 2018-12-07 | 北京智芯微电子科技有限公司 | The method for reducing power line carrier communication radiation interference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114070668A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ge et al. | Dynamic event-triggered scheduling and platooning control co-design for automated vehicles over vehicular ad-hoc networks | |
| Mlika et al. | Network slicing with MEC and deep reinforcement learning for the Internet of Vehicles | |
| CN108055702B (en) | Self-adaptive back-off method based on time slot CSMA \ CA mode | |
| Park et al. | Cross-layer optimization for industrial control applications using wireless sensor and actuator mesh networks | |
| DE112006003086B4 (en) | A system and method for performing topology control in a wireless network | |
| CN104219776A (en) | Slotted CSMA-CA (carrier sense multiple access with collision avoidance) backoff algorithm based optimization method | |
| Jiang et al. | Traffic prediction and random access control optimization: Learning and non-learning-based approaches | |
| CN111819885A (en) | Method and network node for handling link adaptation of a channel | |
| CN109819422B (en) | Stackelberg game-based heterogeneous Internet of vehicles multi-mode communication method | |
| CN107529127A (en) | Perform the communication equipment and its operating method of device-to-device communication | |
| CN114070668B (en) | Power line carrier communication collision domain centralized control method, system and storage medium | |
| CN102170706B (en) | Spectrum access method for distributed cognitive radio system | |
| CN112188565A (en) | Mobile ad hoc network multi-user cooperative transmission method based on network allocation vector | |
| AU2020418632A1 (en) | Method and device for resource selection in vehicle networking system, terminal and medium | |
| Cao et al. | A V2V empowered consensus framework for cooperative autonomous driving | |
| CN105530203B (en) | The connection control method and system of D2D communication links | |
| CN105208643B (en) | A kind of control method and control device of wireless transmitted power | |
| CN110337116B (en) | Method for judging QoS index of MAC layer converged communication | |
| CN109219979B (en) | Resource selection method and device | |
| WO2021196143A1 (en) | Resource exclusion method and apparatus, and device and storage medium | |
| WO2021003626A1 (en) | Method, apparatus, and device for controlling transmission power in direct connection communications, and storage medium | |
| Qureshi et al. | FuCWO: a novel fuzzy-based approach of contention window optimization for IEEE-802.15. 6 WBANs | |
| CN111132298B (en) | Power distribution method and device | |
| WO2021003623A1 (en) | Method, apparatus, and device for controlling transmission power in direct connection communications, and storage medium | |
| Nekooei et al. | A fuzzy logic based cross-layer mechanism for medium access control in WBAN |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |