基于CDMA的无线传感器网络误码率分析

摘要

The multiple access interference (MAD and node interference (NI) are evaluated based on CDMA in wireless sensor network (WSN).The effects of transmission distance, rate, shadowed environment, node density are considered, and the bit error rate (BER) is simulated by Matlab.The simulation results indicate that CDMA can be used for saving energy and reducing interference in physical layer.%为了分析多址干扰和节点干扰对CDMA无线传感器网络的影响,在考虑传输距离、传输速率、阴影效应、节点密度等影响的基础上,通过Matlab对误码率(BER)进行了仿真.仿真结果表明,CDMA在物理层对抵抗干扰和节约能量具有良好的性能.