无线传感器网络中基于放大转发的机会协同ARQ协议吞吐量及能效分析

摘要

An opportunistic cooperative ARQ protocol with amplify and forward (AF) relaying is proposed, which obtains high system energy efficiency with reliable transmissions. The system throughput of the proposed protocol is discussed based on a Markov model, and another model for analyzing system energy efficiency is also proposed. Monte Carlo simulations demonstrate that the results derived from theoretical analyses are consistent with that of practical scenario simulations; the results also show that the proposed protocol performs better than the traditional ARQ protocol in terms of system throughput and energy efficiency.%提出了一种基于放大转发的机会协同自动重传请求协议,在提供可靠传输的同时获得了高能效.给出了一种基于马尔科夫链的吞吐量模型和一种能量效率分析模型,分别分析了所提协议的吞吐量和能效性能.Monte Carlo仿真表明理论分析与实际仿真所得到的系统吞吐量性能基本一致,且仿真结果还表明该协议相比传统ARQ协议具有更高的吞吐量和能效性能.