Comparison of energy consumption for several cooperative diversity modes
几种协作分集模式能量消耗比较

In order to improve the communicating performance and extend the life cycle of wireless networks, this paper set up a unified model , analyzed the cooperative modes of selective decoding forward SDF and multiple input multiple outputMIMO , and investigated the factors which affected energy consumption. The research results indicate that the energy consumption of the SDF system is lower than that of the single input single output SISO system for a fixed ABER value. When the number of transmitting nodes is fixed, required an optimal number of receiving nodes is for the lowest energy consumption. The energy consumption of MIMO system is higher than that of traditional SISO for a short distance. The energy consumption can only be saved unless the distance is longer than the critical value.