CoMP系统中远程无线电单元的最佳位置以提高能源效率

Congqing Zhang, Tiankui Zhang, Zhimin Zeng, L. Cuthbert, Lin Xiao
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引用次数: 19

摘要

对协调多点传输(CoMP)系统中远程无线电单元(RRU)的最优位置进行了理论分析,并给出了一种实际场景中节能的RRU位置设计方案。给出了RRU定位优化的平均最小接入距离准则。通过最小化用户与RRU之间的平均距离,可以得到用户均匀分布在小区内的最优RRU分布。考虑到实际环境中用户分布并不完全均匀,采用k-means聚类算法得到实际用户分布下最优的RRU部署。仿真结果表明,无论在用户均匀分布还是非均匀分布情况下,RRU优化位置设计都能大大降低上行传输功率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Optimal Locations of Remote Radio Units in CoMP Systems for Energy Efficiency
In coordinated multi-point transmission (CoMP) systems, the optimal remote radio unit (RRU) location is analyzed theoretically and a RRU location design scheme for energy efficiency in practical scenarios is given. An average minimum access distance criterion is given for RRU location optimization. By minimizing the average distance between users and RRU, the optimal RRU distribution can be obtained when users are located uniformly in the cell. Taking into account the fact that user distribution will not be completely uniform in a practical environment, the k-means clustering algorithm is used to get the optimized RRU deployment in a practical user distribution. Simulation results show that the uplink transmission power can be greatly reduced with the RRU optimized location design in both the uniform and non-uniform user distribution.
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