WSN中多跳网络能效和延迟控制优化研究

Research on Energy Efficiency and Delay Control Optimization Multi-hop Network in WSN

在无线传感网的设计和应用中,能量消耗和端到端的延迟是主要方面。为了优化能耗和延迟,文中提出一种延迟能耗权衡多跳路由算法(DETMR),算法根据网络和能量模型提出一种新的能量消耗函数和端到端延迟函数,利用能量消耗函数和端到端延迟函数计算每一条链路的能耗值和端到端的延迟,选出满足端到端延迟限制的能耗最少的路由,即为数据传输的最佳路径。仿真结果表明,与常见的HEED协议、DEAR协议相比,DETMR算法能均衡网络能量消耗,延长网络生命周期。

In the design and application of wireless sensor networks,energy consumption and end-to-end delay are the main aspects. In order to optimize the energy consumption and delay,a Delay-Energy Trade-off in Multi-hop Routing algorithm named DETMR is proposed. The algorithm proposed a new energy consumption function and new end-to-end delay function based on the network and energy model,the energy consumption and end-to-end delay of each link are calculated using the energy consumption function and the end-to-end delay function.The route with the least energy consumption satisfying the end-to-end delay limit is selected,which is the best path for data transmission. The simulation results show that compared with HEED protocol and DEAR protocol,DETMR algorithm can balance the network energy consumption,prolong the network life time.