Energy Efficient Precoder Design for MIMO-OFDM with Rate-dependent Circuit Power

被引：0

作者：

Wang, Zijian ^{[1
]}

Stupia, Ivan ^{[1
]}

Vandendorpe, Luc ^{[1
]}

机构：

[1] Catholic Univ Louvain, Inst Informat & Commun Technol Elect & Appl Math, Pl Levant 2, B-1348 Louvain, Belgium

来源：

2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2015年

关键词：

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper studies an energy efficient design of pre-coders for point-to-point multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. Differently from traditional approaches, the optimal power allocation strategy is studied by modelling the circuit power as a rate-dependent function. We show that if the circuit power is a constant plus an increasing and convex function of the transmission rate, the problem of minimizing the consumed energy per bit received can be reformulated as a convex fractional program and solved by means of a bisection algorithm. The impact of the some system parameters is investigated either analytically or by means of computational results.

引用

页码：1897 / 1902

页数：6

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