User Clustered Opportunistic Beamforming for Stratospheric Communications

被引：16

作者：

Zhang, Qian ^{[1
]}

Xi, Qi ^{[1
]}

He, Chen ^{[1
]}

Jiang, Lingge ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Elect Engn, Shanghai 200240, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 09期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

Opportunistic beamforming; user clustering; stratospheric communications; MASSIVE MIMO; CHANNELS; SYSTEMS;

D O I：

10.1109/LCOMM.2016.2584038

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter proposes a user clustered opportunistic beamforming scheme for stratospheric communications. The beamformer is partitioned into two parts, a dominant part directing to the user cluster and a random part to improve the user fairness. The user clustering and the dominant beamformer are collaboratively determined to maximize the match degree between the beamformer and the scheduled user channel, which results in high transmission rates. The clustering is based on the slow varying parameters, which can be measured on the platform. Besides the received signal-to-interference-plus-noise ratio values, no additional feedback is needed. Simulation results show the performance gain of the proposed scheme.

引用

页码：1832 / 1835

页数：4

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