基于代理节点的ZigBee网络孤立点解决算法

Agent-Based Orphan Problem Solving Algorithm in ZigBee Networks

Zig Bee协议默认的分布式地址分配算法(DAAM)存在孤立点问题,而没有提出好的解决方案.提出一种基于代理节点的Zig Bee地址分配算法ABAAM,可以有效的降低因为网络预设参数和节点位置导致的孤立点问题.当节点无法加入网络时,选取邻居表中一个路由节点作为代理节点以加入网络;同时改进现有的树路由协议,使之能够兼容当前的分配算法.理论和仿真分析表明,本文提出的算法的地址分配成功率等性能要优于默认的DAAM算法.

The default distributed address assignment mechanism(DAAM) of Zig Bee protocol exits orphan problem without a good solution. This paper presents a mechanism called agent based address assignment mechanism(ABAAM) which can effectively reduce the orphan problem caused by the network preset parameters and nodes position. When one node cannot join the network, it selects one route node in the neighbor table as an agent and joins the network; the tree routing protocol is also improved to be compatible with the current allocation algorithm. Theoretical analysis and simulation show that the proposed algorithm has a better performance in the success rate than the default DAAM algorithm.