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为了减轻多速率共享问题对无线多跳网络造成的影响,结合路由选路过程中的报文广播,提出基于速率和网络流量进行信道分配的跨层设计方法.该方法提出容量代价函数,设计了信道分配优化模型,在保证新业务带宽需求的同时,降低新业务接入对原有业务的影响,在路由选路过程中实现速率和信道的同时优化.仿真结果表明,该方法使网络吞吐量获得很大提升,同时节省了大量协议开销.
In order to reduce the impact of multi-rate sharing on wireless multi-hop networks, a cross-layer design method for channel allocation based on rate and network traffic is proposed in combination with packet broadcast in routing process.This method proposes a capacity cost function, The channel allocation optimization model can reduce the impact of new service access on the original service while guaranteeing the bandwidth demand of the new service and optimize the rate and channel simultaneously in the route routing process.The simulation results show that this method enables the network throughput Get a big boost, while saving a lot of protocol overhead.