CAJ | 학술논문

降低路由控制开销是MANET网络组播路由协议节省节点能量,提高带宽利用率的关键因素之一.本文研究了组播路径近邻节点对路由维护的作用以及链路的连通性,分别提出了一个新的k-泛洪约束算法和一个混合泛洪模式.基于k-泛洪约束算法和混合泛洪模式,提出一个新的按需组播路由协议ODMRP-CF,ODMRP-CF协议通过选择k-路由近邻节点转发泛洪分组来提高泛洪效率.ODMRP-CF协议不仅保持了ODMRP协议所具有的简单,对节点移动鲁棒性好的优点,而且有效地降低了ODMRP-CF协议的控制开销.
강저로유공제개소시MANET망락조파로유협의절성절점능량,제고대관이용솔적관건인소지일.본문연구료조파로경근린절점대로유유호적작용이급련로적련통성,분별제출료일개신적k-범홍약속산법화일개혼합범홍모식.기우k-범홍약속산법화혼합범홍모식,제출일개신적안수조파로유협의ODMRP-CF,ODMRP-CF협의통과선택k-로유근린절점전발범홍분조래제고범홍효솔.ODMRP-CF협의불부보지료ODMRP협의소구유적간단,대절점이동로봉성호적우점,이차유효지강저료ODMRP-CF협의적공제개소.
In Mobile Ad hoc Networks (MANET), it is one of the dominant factors saving a node's battery power and improving the efficiency of network bandwidth to reduce the routing overhead for a multicast routing protocol. The roles of some nodes near the paths in the maintenance of multicasting paths and the link connectivity are studied, a local flooding algorithm, namely k- constrained flooding algorithm, and a mixed flooding pattern are presented, and then a new multicast routing protocol, which is called the On-Demand Multicast Routing Protocol with Constrained Flooding (ODMRP-CF), is also proposed in this paper. In ODMRP-CF, only k- nodes near the paths can be selected to forward the control packets to enhance the flooding efficiency. Simulation results show that the ODMRP-CF can reduce significantly control overhead while keeping similar packet delivery ratio to ODMRP.