Energy and spectral efficiency trade-off for the downlink OFDM-distributed antenna systems

被引：3

作者：

He, Chunlong ^{[1
]}

Sheng, Bin ^{[1
]}

You, Xiaohu ^{[1
]}

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing 210096, Jiangsu, Peoples R China

来源：

INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS | 2014年 / 27卷 / 11期

基金：

国家高技术研究发展计划(863计划);

关键词：

energy efficiency; spectral efficiency; distributed antenna systems; WIRELESS COMMUNICATIONS; OPTIMIZATION; THROUGHPUT; ADAPTATION; MIMO;

D O I：

10.1002/dac.2545

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper investigates an energy efficient optimization scheme for the downlink multiuser OFDM-distributed antenna systems. We adopt a multicriteria optimization method to offer a systematic study on the relationship between spectral efficiency (SE) and energy efficiency (EE). First, we transform the energy efficient optimization problem with high complexity into a simpler downlink multiuser OFDM problem. Then, using the weighted sum method in multicriteria optimization, an optimal energy efficient scheme is presented to allocate the available power to balance the trade-off between SE and EE efficiently. Simulation results demonstrate that the energy efficient scheme is effective, and there existed a trade-off between SE and EE in the downlink multiuser OFDM-distributed antenna systems. Copyright (c) 2013 John Wiley & Sons, Ltd.

引用

页码：3339 / 3351

页数：13

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