基于MIMO模式的无线传感器网络数据传输协议

Data transmission protocol based on MIMO scheme in wireless sensor networks

在对分簇无线传感器网络在簇群内和簇群之间数据传输能耗进行分析的基础上,提出了一种在簇群间采用M IMO模式进行数据传输的方法。该方法以HEED协议为基础,将MIMO模式引入到簇群间的数据传输过程中,极大地降低了传输能耗,并且创建了一种基于MIMO技术的分簇传感器网络能耗模型,推导出实现网络能耗最小化时系统参数的最优值。实验结果显示,与HEED协议相比,该方法更显著地降低了网络的总体能耗,使网络具有更长的生存期。

Based on analyzing the performance of energy consumption of intra-cluster and inter-cluster communication, this paper proposed a cluster-based cooperative MIMO scheme to reduce the energy consumption in data transmission. This scheme extended the HEED protocol to enable the multi-hop transmission among adjacent cluster heads by incorporating a cooperative MIMO scheme. Furthermore, developed an energy consumption model for this proposed scheme, and obtained the optimal parameters to minimize the total energy consumption. Simulation results show that the proposed scheme can efficiently reduce the energy and prolong the lifetime of network significantly.