无线传感器网络GEAR算法的改进

摘要

针对无线传感器网络中地理位置路由(GEAR)算法在转发查询消息和解决路由空洞问题存在局限性,提出了一种改进的方案.改进的GEAR算法从均衡网络流量出发,根据规则建立了从源节点到目标区域的多条路径,并且避免了同一节点重复面临同一路由空洞问题.用NS2对GEAR算法和改进后的算法进行仿真,结果表明,改进的算法能够较好的平衡网络负载,增加网络生命周期.%Since the geographical location routing (GEAR) algorithm has some shortcomings in forwarding query message and solving routing hole problem, this article proposed an improved scheme. Based on some rule, the improved GEAR algorithm established multipath from the source node to the target region, at the same time, it can avoid the identical node eneotmtering the same hole again. Both of the algorithms were emulated by NS2, the simulation results show that the improved algorithm can better balance the network loads and increase the network lifetime.