摘要
车载Adhoc网络已经成为受人关注的课题,但在现有的地理路由协议中,位置定位错误对协议的性能会造成很大影响.该文首先对GPSR协议进行了仿真,并通过仿真对位置定位错误影响的协议性能进行了分析,发现即使10%的错误率也会对GPSR协议性能造成很大影响.最后对GPSR协议的平面图算法提出了一种改进,使GPSR协议在定位错误的情况下性能有所提升.
Vehicular ad hoc networks using WLAN technology have recently received considerable attention. But geographic routing protocols have been shown to work incorrectly if location errors occur. This paper made simulations on the GPSR protocol, and analyzed the effect of mislocation on the performance of protocols. It is found that even 10% location errors can lead noticeable performance degradation. Finally, we presented an improved face routing method, which improves the performance of GPSR protocol in the present of location errors.
出处
《应用科技》
CAS
2009年第1期39-42,共4页
Applied Science and Technology
