An analytical model for SMAC protocol in multi-hop wireless sensor networks

查看全文 作　　者：LUO Jun JIANG LingGe HE [1]Chen

机构地区：[1]Department of Electronic Engineering, Shanghai Jiaotong University, Shanghai 200240, China

出　　处：《Science China(Information Sciences)》索引2010年第53卷第11期,共9页

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 60772100, 60872017,60832009) 摘　　要：Considering the active/sleep dynamics and the contention backoscheme of SMAC protocol in multi-hop wireless sensor networks (WSNs), we model each node as a finite single server queue with server shutdown, and model each node's states as a two-dimensional continuous-time Markov chain. Based on the model, we derive the network performance in terms of average packet loss ratio, network throughput, average packet delay and average power consumption. Experiment comparisons show that the analytical results match well with the simulation results, which validates the accuracy of the analytical model. Furthermore, using the analytical model can enable us to investigate the performance tradeobetween energy efficiency and QoS requirement, and give us theoretical insight into the optimal parameters such as duty cycle, mean active period and buffer size in multi-hop wireless sensor networks. 关键词：无线传感器网络解析模型 MAC协议多跳平均时延网络性能马尔可夫链网络吞吐量

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An analytical model for SMAC protocol in multi-hop wireless sensor networks

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