中文摘要：

单向链路会对自组网按需距离矢量组播路由协议（MAODV）的路由维护机制造成一定影响,为提高通信的实时性和完整性,针对单向链路,提出了改进的路由算法MAODV-UNI.在路由维护过程中及时对单向链路进行检测并做出处理,合理有效的利用单向链路,简化路由修复,有效提高了路由性能.用NS2仿真平台进行仿真验证,模拟单向链路,将改进后的协议与原始的MAODV协议进行比较,结果表明MAODV-UNI算法在分组投递率和时延方面优于MAODV协议,证明了该协议的有效性.

英文摘要：

Unidirectional links have impacts on the routing maintenance mechanism of origin multicast Ad hoc on-demand distance vector（ MAODV） protocol. In order to enhance the real-time performance and completeness of communication,this article put forward an improved routing protocol MAODV-UNI for unidirectional links. It can improve the routing efficiency by detecting the unidirectional links timely during the route maintenance and reasonably use it. Then use NS2 to simulate MAODV-UNI and compare with the original MAODV protocol in the same scene with unidirectional links. It is proven that MAODVUNI has advantages about packet delivery rate and delay that make it more effective compare with original MAODV.