论文部分内容阅读
提出一种基于能效和通信距离的适用于无线传感器网络的多中继自适应协作差错控制策略,在提供高可靠性数据传输同时保持高吞吐率和高能效.根据传统ARQ、Chase合并的混合ARQ的能效规律和数据包在链路层分割为若干个数据帧的规律建立了一种马尔科夫链模型,并给出了饱和吞吐率、数据包丢弃概率、时延和能效分析方法,在此基础上提出了自适应多中继协作差错控制策略.针对线性移动无线传感器网络模型,对传统ARQ、Chase合并的混合ARQ和自适应多中继协作差错控制的通信性能以及移动性的影响进行了分析.结果表明所提策略在饱和吞吐率、可靠性和能效方面,表现出了比传统ARQ和Chase合并的混合ARQ更优越的性能.
A multi-relay adaptive cooperative error control strategy for WSN based on energy efficiency and communication distance is proposed to provide high-reliability data transmission while maintaining high throughput and energy efficiency.According to the traditional ARQ, the hybrid ARQ The law of energy efficiency and the data packet are divided into several data frames at the link layer, a Markov chain model is established and the methods of saturation throughput, packet discard probability, delay and energy efficiency are given The adaptive multi-relay cooperation error control strategy is proposed.For the linear mobile wireless sensor network model, the communication performance and mobility of traditional ARQ, Chase combined hybrid ARQ and adaptive multi-relay cooperative error control are studied The results show that the proposed strategy shows better performance than traditional ARQ and Chase combined hybrid ARQ in terms of saturation throughput, reliability and energy efficiency.