Ad Hoc网络中基于网络编码的无线路由协议研究  

Study of wireless routing protocol for network coding in Ad Hoc networks

作　　者：王春雨[1] 张曦煌[1] 

机构地区：[1]江南大学物联网工程学院,江苏无锡214122

出　　处：《计算机工程与设计》2013年第5期1563-1567,共5页Computer Engineering and Design

摘　　要：为了解决分布式编码感知路由(DCAR)中可能出现的吞吐量减少的问题,提出了一个支持网络编码技术的无线路由协议,以提高网络吞吐量。在路由发现过程中,每个节点利用路径信息和路由请求包(RREQ)来判断编码的可能性,必要的时候通过路由转换的方式来寻找具有网络编码机会的路由。仿真结果表明,协议能有效的发现具有编码机会的路由,进而提高网络吞吐量。To solve the problem that throughput decreases in DCAR, a routing protocol that improves the throughput by switching the path that allows network coding to he applied while not limited on exiting path is presented. In our proposed scheme, each node discovers the path by considering the possibility of applying network coding by using the path information and Rout Request （RREQ） packet, and the protocol switches the exiting path to the path which network coding can be applied when necessary. Our proposed scheme applies network coding without depending on the exiting path and improves throughput. By the simulation with NS-2, the throughput of DCAR and the scheme are evaluated. The validity and efficiency of the proposed scheme is demonstrated by the simulation results.

关 键 词：路由协议 网络编码 DCAR协议 AD HOC网络 路径转换 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]