一种新的LTE系统下行功率控制算法

A Novel Power Control Algorithm for Downlink LTE System

从提高系统吞吐量性能和公平性性能角度出发,提出一种新的LTE系统下行功率控制算法。该算法考虑扇区边缘用户受到的不同衰落,首先为边缘资源块分配发射功率,然后采用调度算法为边缘用户分配资源块,最后为中心资源块分配发射功率。仿真结果表明,该算法获得的系统吞吐量性能和公平性性能均优于传统算法。

Starting from the angle of through-rising and fairness, a novel power control algorithm for downlink LTE system is proposed in this paper. The algorithm considers the different decays by users locating at the edge of the sector. The transmission power for the marginal resource blocks is allocated first, then the resource blocks are allocated to marginal users by some scheduling algorithm, finally the remaining power is distributed uniformly to central resource blocks. Simulation results indicate that the proposed algorithm could obtain better system throughput and fairness performance than traditional algorithms.