Energy-Efficient Multiuser MIMO Downlink Transmissions in Massively Distributed Antenna Systems with Predefined Capacity Constraints

被引：4

作者：

Mahboob, Saad ^{[1
]}

Mahapatra, Chinmaya ^{[1
]}

Leung, Victor C. M. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

来源：

2012 SEVENTH INTERNATIONAL CONFERENCE ON BROADBAND, WIRELESS COMPUTING, COMMUNICATION AND APPLICATIONS (BWCCA 2012) | 2012年

关键词：

Energy consumption; multiuser MIMO; massively distributed antenna system; convex optimization; multiuser beamforming;

D O I：

10.1109/BWCCA.2012.41

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Massively distributed antenna system is a promising architecture to enhance the system performance in future broadband wireless access beyond the Long Term Evolution (LTE) and Long Term Evolution Advanced (LTE-A) standards. Reduction of the power consumption of such systems is an important issue in their practical realization. This paper presents a technique to optimize the power consumed by a massively distributed antenna system in a multiuser downlink scenario subjected to throughput constraints. More specifically, the power consumed under the target sum-capacity constraint is optimized. We use zero-force beamforming scheme to simplify our analysis and derive optimal-rate allocation among the users. Simulation results confirm that the energy consumption can be reduced considerably while the throughput constraint is satisfied.

引用

页码：208 / 211

页数：4

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