路径质量感知的MANET自适应Internet接入策略

Path Quality Based Internet Access Scheme for Mobile Ad Hoc Network

提出了一种跨层设计及路径质量感知的移动自组网(MANET)自适应Internet接入策略.综合考虑网络剩余带宽、投递率以及节点负载等因素,设计一种综合多目标性能参数的路由判据,均衡网络负载,满足互联时多媒体业务的服务质量需求.同时,根据网关负载和网络拓扑情况自适应调整网关通告的广播范围和发送间隔,实现网关的最佳覆盖.仿真结果表明,该算法能有效提高网络的互联性能,并保持合理的控制开销.

A cross-layer design and path quality based adaptive scheme for mobile Ad hoc network accessing Internet is proposed. The proposed scheme adopts an integrated metric taking into account the combination of residual bandwidth,packet delivery ratio and node load to meet the needs of quality of service requirement of multimedia traffic transmissions. Furthermore,an adaptive algorithm is proposed to provide the best coverage of gateway advertisement according to dynamically adjusting broadcast range and sending interval of gateway advertisement messages in terms of gateway load and network topology. Simulations show that the proposed algorithm can effectively improve Internet connectivity performance with reasonable control overhead.