Energy-constrained modulation optimization

被引：1016

作者：

Cui, SG ^{[1
]}

Goldsmith, AJ

Bahai, A

机构：

[1] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA

[2] Stanford Univ, Dept Elect Engn, Wireless Syst Lab, Stanford, CA 94305 USA

[3] Natl Semicond Corp, Stanford, CA 95051 USA

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2005年 / 4卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

energy efficiency; minimum frequency-shift keying (MFSK); modulation optimization; multilevel quadrature amplitude modulation (MQAM);

D O I：

10.1109/TWC.2005.853882

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：

Wireless systems where the nodes operate on batteries so that energy consumption must be minimized while satisfying given throughput and delay requirements are considered. In this context, the best modulation strategy to minimize the total energy consumption required to send a given number of bits is analyzed. The total energy consumption includes both the transmission energy and the circuit energy consumption. For uncoded systems, by optimizing the transmission time and the modulation parameters, it is shown that up to 80% energy savings is achievable over nonoptimized systems. For coded systems, it is shown that the benefit of coding varies with the transmission distance and the underlying modulation schemes.

引用

页码：2349 / 2360

页数：12

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