Performance optimization method of low-voltage power line communication LAN based on dynamic game

Abstract

The invention provides a low-voltage power line communication local area network performance optimization method based on a dynamic game and belongs to the communication field. Thus, channel access parameters are adaptively changed, and throughput of the communication local area network of power line carrier waves, band width utilization rate and time slot utilization rate are increased. The method comprises steps of step 1, when a time slot of a low-voltage power line communication local area network is started, entering step 2; step 2, judging whether a channel is in an idle state through a node, if yes, entering step 3 and if not, selecting other channels and repeating the step 2; step 3, using the hidden Markov prediction algorithm to predict a decision result to the channel state by a completion node through the node, and acquiring active node number n participating in the channel competition; step 4, acquiring the optimal access probability p of the channel; and step 5, requiring for accessing the channel with the acquired optimal access probability p, if the access is successful, sending a data group to a target node with the access probability p under a non-symmetric channel environment through the node, and if the access is not successful, entering the step 2.

Description

technical field [0001] The invention relates to a method for optimizing the performance of a low-voltage power line communication local area network, in particular to a method for optimizing the performance of a low-voltage power line communication local area network based on dynamic game, which belongs to the field of communication. Background technique [0002] The Energy Internet is considered an important symbol of the third industrial revolution and has now attracted widespread attention from all over the world. As the future development direction of the power system, and affected by the trend of "Industry 4.0" and "Internet +", the power energy Internet will become one of the research hotspots in today's academic circles. As the core interface of the energy Internet, the energy router is also one of the feasible schemes of the electric energy Internet networking. Therefore, taking the network formed by the energy router as the research object, through the research on t...

AI Technical Summary

Problems solved by technology

[0004] 1. A node's access to the channel will directly affect the access performance of neighboring nodes

[0005] 2. Due to the randomness of nodes accessing channels, it is relatively difficult to obtain the number of active nodes participating in channel competition

Although some literatures have proposed associated node number estimation algorithms, the algorithms are relatively complex and there are great difficulties in implementation.

[0006] 3. When the network access load is heavy, the collision probability of data packets sent by nodes is relatively high, and network congestion is prone to occur, resulting in performance degradation of bandwidth utilization, throughput, and slot utilization

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