一种实现Wi-SUN网络多速率自适应切换的方法

A method to realize multi-rate adaptive switching in Wi-SUN network

针对Wi-SUN(Wireless Smart Utility Network)FAN(Field Area Network)网络通信速率单一导致的数据吞吐量和通信可靠性不平衡问题,设计了一种Wi-SUN网络多速率自适应切换方法。该方法使用判定机制根据节点与邻节点通信情况判定节点间是否需要切换链路速率,自适应调整合适的通信速率方案,且使用基于跳频技术设计的速率匹配机制,使节点可以在网状网络中随时切换与其它邻节点通信的速率。通过将传统单一速率Wi-SUN网络与多速率Wi-SUN网络模拟对比,结果表明多速率网络比传统单一速率网络可以被应用在更多场景下,且证明多速率网络能够平衡数据吞吐量和通信可靠性。

In order to solve the problem of unbalanced data throughput and communication reliability caused by single communication rate of Wi-SUN(Wireless Smart Utility Network)FAN(Field Area Network)network,a multi-rate adaptive switching method is designed.This method uses a decision mechanism to determine whether the link rate should be switched between nodes according to the communication situation between nodes and neighboring nodes,adaptively adjusts the appropriate communication rate scheme,and uses a rate matching mechanism designed based on frequency hopping technology to enable nodes to switch the rate at any time to communicate with other neighboring nodes in the mesh network.By comparing the traditional single rate Wi-SUN network with the multi-rate Wi-SUN network simulation,the results show that the multi-rate network can be applied in more scenarios than the traditional single rate network,and prove that the multi-rate network can balance data throughput and communication reliability.