CoMP OFDM场景下的下行功率分配算法
首发时间:2012-12-27
摘要:在这篇论文中,主要研究了在支持多点传输的下行协调多点(CoMP)系统中如何通过设计协同规划和功率控制的算法。研究的目的是在功率的限制条件下最大化其边缘用户的吞吐量。通过分析推导,二分功率分配算法对所选择的任何用户都成立。通过这个分析结果,分析推导出一个协同多点场景下用户选择和功率分配算法的一个集中式场景。与那些不考虑联合传输和功率控制的算法进行比较,该算法方针结果表明在联合传输和干扰协调之间取得了一个良好的平衡结果,从而有助于提高边缘的性能。
关键词: 通信技术 CoMP 协同多点 功率分配 OFDM LTE-A
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A downlink communication algorithm in CoMP OFDM Cluster
Abstract:In this paper, the problem of designing a joint scheduling and power control algorithm in a downlink coordinated multi-point (CoMP) system supporting CoMP joint transmission is solved. The objective is to maximize the cell-edge throughput under per-base station power constraints. By using analytical derivation, it is found that binary power control is the optimal solution for any given selected users. Under this analysis above, a centralized joint user selection and power control scheme is proposed. Compared to algorithms without considering joint transmission and algorithms without considering power control, simulation result shows that the proposed algorithms achieve a better bit rate and improve the cell-edge performance.
Keywords: Telecommunications CoMP Coodinated Multiple Point Power Allocation OFDM LTE-A
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