计算机科学 ›› 2013, Vol. 40 ›› Issue (10): 68-71.
周昆,符意德
ZHOU Kun and FU Yi-de
摘要: 针对基于地理位置的路由协议在无线多媒体传感器网络中存在的路由空洞问题,提出了一种新的地理路由算法RTGR。该算法通过周期性的空洞检测收集所有空洞边界节点的位置信息,并利用距离形成一个覆盖空洞的感知域。数据包到达感知域后,动态选择空洞边界上的凸包节点作为中间节点进行转发,形成有效的空洞迂回路径,避免陷入路由空洞。仿真结果表明,该算法的路由平均跳数明显减少,能够保证多媒体数据在多路由空洞环境下的实时传输。
[1] 孙利民,李建中,陈渝.无线传感器网络[M].北京:清华大学出版社,2005:20-24 [2] 张耀,贾振红.求解路由空洞问题的GEAR改进算法[J].计算机工程,2008,4(12):94-96 [3] 田乐,谢东亮,任彪,等.无线传感器网络贪婪转发策略中的路由空洞问题[J].电子与信息学报,2007,9(12):2996-3000 [4] Karp B,Kung H T.GPSR:Greedy Perimeter Stateless Routing for Wireless Networks[C]∥Proc of 6th Annual International Conference on Mobile Computing and Networking.Boston:ACM press,2000:243-254 [5] Ma Xiao-li,Sun Min-te,Zhao Gang,et al.Improving geographi-cal routing for wireless networks with an efficient path pruning algorithm[J].IEEE Transactions on Vehicle Technology,2008,7(4):2474-2488 [6] Yan Yu,Govindan R,Estrin D.Geographical and energy-aware routing:A recursive data dissemination protocol for Wireless Sensor Networks[R].UCLA-CSD TR-01-0023. UCLA Compu-ter Science Department, 2001 [7] Fang Qing,Gao Jie,Guibas L.Locating and bypassing routing holes in sensor networks[C]∥Proc of the 23rd Annual Joint Conference of the IEEE Computer and Communications Societies.Hong Kong:IEEE press,2004:2458-2468 [8] Yu Fu-cai,Soo-chang P,Ye Tian,et al.Efficient hole detour scheme for geographic routing in Wireless Sensor Networks[C]∥Proc of the 68th Annual IEEE Vehicular Technology Confe-rence.Orlando:IEEE press,2008:153-157 [9] 彭玉旭,郭月,胡立辉.WMSN中的一种有效地理路由空洞迂回算法[J].计算机工程与应用,2012,48(12):58-62 |
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