一种新的Ad Hoc网络跨层能量均衡广播协议

摘要

文章针对盲目广播带来的广播风暴问题,提出了一种新的Ad Hoc网络跨层能量均衡广播协议CLEABP.CLEABP应用跨层设计的方法,在维持原有协议层间结构分离的基础上,允许路由层共享MAC层的网络状态信息,并根据重播增加通信面积和局部能量状况在路由层调节重播延迟时间,优化节点重播分组的优先权,从而减少了分组在网络中的重复传输,降低了节点间的竞争和碰撞,均衡了网络中节点的能量消耗.仿真结果表明:与在路由层应用BCAST协议、同时在MAC层应用IEEE802.11协议相比,CLEABP延长了网络生命周期、降低了平均端对端延迟和节点平均丢包数量.%The introduction of the full paper reviews a number of papers in the open literature, points out their two major shortcomings, and then proposes a novel CLEABP, which we believe is better and is explained in sections 1 and 2. The core of section 1 consists of; "In order to solve the broadcast storm problem caused by blind flooding, a novel CLEABP for Ad Hoc networks is proposed. CLEABP lets the routing layer share the network status information of the MAC layer by the cross-layer design while still maintaining separation between the two layers. The deferring time of rebroadcast is adjusted by the additional transmission range and local energy level at the routing layer. The priority of the nodes to rebroadcast the packets is optimized. CLEABP reduces the redundant retransmission and the chance of the contention and collision, balances the energy consumption of the nodes. " The simulation results , presented in Figs. 3 through 6 which all compare CLEABP with ( BCAST + 802. 11), demonstrate preliminarily that CLEABP prolongs the network lifetime and reduces the average end-to-end delay and the average number of packet loss per node.