无线传感器网络中基于簇间切换的CARQ协议中断概率及能效分析

Outage Probability and Energy Efficiency Analyses of Cooperative ARQ Protocol Based on Inter-Cluster Switching in Wireless Sensor Networks

摘要: 为了进一步提高传感器网络中无线传输的可靠性以及获得较高的能量效率，提出了一种基于簇间切换的CARQ协议。该协议首先对每个簇内的多个中继进行以信道容量为指标的择优选取。然后对每个簇中选取的最优中继构成的中继链路S-Ri-D引入链路的稳态选择，分析了各个链路被选中的稳态概率。最后结合簇内选取的最优中继的链路中断概率，以传感器网络为研究模型，分析了两个簇之间进行切换的系统的中断概率和能量效率。通过分析和仿真证实了所提协议能够更好的保障系统的传输效率，特别是随着各个簇内成员数目增多时能显著的改善系统的性能。

Abstract: In order to further improve the reliability of wireless transmission in sensor networks and obtain high energy efficiency, a CARQ protocol based on inter-cluster switching is proposed. The protocol first selects optimal relay in each cluster with the channel capacity as the index. Then, the steady-state selection probability of the link of the communication link S-Ri-D is analyzed. Finally, the sensor network is used as the research model, and the outage probability and energy efficiency of the system are analyzed when inter-cluster switch. The analysis and simulation show that the proposed protocol can better guarantee the transmission efficiency of the system. Especially when the number of members in each cluster increases, the performance of the system can be improved remarkably.

文章引用：张凯, 黎锁平, 王帆, 王珂. 无线传感器网络中基于簇间切换的CARQ协议中断概率及能效分析[J]. 计算机科学与应用, 2017, 7(12): 1181-1191. https://doi.org/10.12677/CSA.2017.712133

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