摘要
分析移动自组网动态源路由(DSR)协议路由缓存中存在的问题及其对DSR协议性能的影响。针对DSR路由缓存中失效路由导致该协议性能下降的问题,在DSR协议中引入AODV协议的局部连接性管理机制,提出可以主动发现过期路由的DSR(DSR-SRAD)协议,阐述其设计思想和实现细节。采用网络仿真软件NS2测试DSR-SRAD,DSR和AODV,结果表明DSR-SRAD协议的分组传送成功率较高,其平均端到端延迟和路由控制开销较小。
This paper analyzes the problems existing in route caching of Dynamic Source Routing（DSR） protocol for mobile Ad hoc networking and its effects to DSR protocol performance. Aiming at the performance decrease problem of DSR protocol caused by stale routes in DSR route caching,the local connectivity management mechanism in AODV protocol are introduced into DSR protocol. It presents DSR with Stale Route Active Discover（DSR-SRAD） protocol and expatiates its design thoughts and implementation detail. DSR-SRAD,DSR and AODV are tested by network simulation software——NS2 and the results show that DSR-SRAD protocol has high packets delivery ratio,lower average end to end delay and routing control overhead.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第2期100-101,共2页
Computer Engineering
关键词
DSR协议
AODV协议
缓存
源路由
仿真
Dynamic Source Routing（DSR） protocol
AODV protocol
cache
source route
simulation
