摘要
以WSN位置路由协议GEAR为改进对象,针对该协议在数据传输过程中存在的路由空洞及能量浪费问题,提出了一种新的位置路由协议——GEAR+。通过使节点拥有相邻两跳或更多跳节点的位置信息来降低路由空洞产生的概率,以及在对节点采集的数据进行必要的数据融合的同时,适当地改变节点的状态来避免无谓的能量消耗。利用NS2进行仿真,结果表明改进后的算法具有更好的性能。
To improve WSN geographic routing protocol, GEAR , and solve the problems of energy waste and routing hole existing in data transmission, a new geographic routing protocol GEAR4 is proposed. By making the nodes acquire two or more adjacent nodes＇ lo cation information, the probability of routing hole is reduced. Necessary aggregation of data collection on the nodes is carried out, and meanwhile, the states of the nodes are changed appropriately, to avoid unnecessary energy consumption. Using NS2 simulation, the re suits show that the improved algorithm has better performance.
出处
《单片机与嵌入式系统应用》
2011年第8期4-6,共3页
Microcontrollers & Embedded Systems
