基于电池能效性的两跳中继功率分配研究

Research on the power allocation of two-hop relay based on battery energy efficiency

为了解决无线两跳中继网络电池能效性不足的问题,研究了非线性电池模型的最优解和次优解中继传输问题,提出了瑞利衰落信道放大转发(Amplify-and-Forward,AF)和解码转发(Decode-and-Forward,DF)协议之间的等价模型。理论推导和仿真实验说明,中继并不一定能提高两跳中继系统的能源效率,但功率分配能够实现能源效率的提升。

In order to solve the problem of insufficient battery energy efficiency in wireless two-hop relay network, this paper studied the optimal and suboptimal solutions of the nonlinear battery model for relay transmission. An equivalent model between Amplify-and-Forward (AF) and Decode-and-Forward (DF) protocols is proposed. Through theoretical derivation and simulation experiments, the relay does not necessarily improve the energy efficiency of two-hop relay system, but the power allocation can improve the energy efficiency.