Research on multicast routing protocol in outer space wireless sensor network
基于外层空间的无线传感器网络组播路由协议研究*

By researching in wireless sensors networks whose nodes deployed in the surface of Mars by spacecraft, this paper firstly proposed the concept of outer space wireless sensor network(OSWSN), and pointed out its nodes were composed by self-organizing way. After researching the multicast protocols used by ground wireless sensor networks and basing the thought how the self-organizing networks build multicast tree, proposed a new multicast protocol named OSWSNMP for space wireless sensor network. At last, after using NS2 simulation tool to set OSWSNMP simulation environment, compared OSWSNMP with some other multiple routing protocols.The simulation results indicate that OSWSNMP is better than MAODV and EMRS with respect to loss ratio, network delay and energy loss.