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为了提高大规模天线能量广播系统的平均用户能量收获效用,在采用最大比传输预编码下,利用大规模天线的性质推导了单能量源场景的最优功率分配方案,利用小区间干扰提出了多能量源协作传输方法,并给出了协作能量传输的最优功率分配方案.仿真结果表明,在单能量源中,所提功率分配方案的性能好于等功率分配方案的性能,协作能量传输方案的性能优于非协作能量传输方案的性能.
In order to improve the average user energy harvesting efficiency of large-scale antenna energy broadcasting system, under the condition of maximum ratio transmission precoding, the optimal power allocation scheme of single-energy source scenario is deduced by utilizing the properties of large-scale antenna. Multi-cell interference is proposed Energy source collaborative transmission method and gives the optimal power allocation scheme for coordinated energy transmission.The simulation results show that the performance of the proposed power allocation scheme is better than the performance of equal power allocation scheme in a single energy source and the cooperation energy transmission scheme Performance is better than that of non-cooperative energy transmission scheme.