Energy-Efficient Resource Allocation in Wireless OFDMA Systems

被引：28

作者：

Akbari, Amir ^{[1
]}

Hoshyar, Reza ^{[1
]}

Tafazolli, Rahim ^{[1
]}

机构：

[1] Univ Surrey, Ctr Commun Syst Res, Guildford GU2 5XH, Surrey, England

来源：

2010 IEEE 21ST INTERNATIONAL SYMPOSIUM ON PERSONAL INDOOR AND MOBILE RADIO COMMUNICATIONS (PIMRC) | 2010年

关键词：

energy efficiency; downlink; bits per joule; OFDMA; time-sharing;

D O I：

10.1109/PIMRC.2010.5671913

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：

Reducing the consumed energy in wireless communication systems has a direct impact on operational expenditure as well as CO2 emissions. With increasing interest in multimedia applications and high data rate services, environmentally sustainable communications networks must reduce the energy per delivered bit at an equal rate, if not better. This paper addresses downlink energy-efficient transmission in OFDMA systems and maximizes the overall bits transmitted per joule of energy. In addition to the transmit power, circuit power is also accounted for in the energy-efficient design, which is tackled using both standard optimization techniques and a frame work based on time-sharing. Simulation results show similar performances for both cases with the latter having lower complexity and taking less CPU time to run.

引用

页码：1731 / 1735

页数：5

共 15 条

[1]

[Anonymous], IEEE T WIRELESS COMM

[2]

[Anonymous], P IEEE INTLEC 2007 R

[3]

[Anonymous], IEEE WORKSH SIGN PRO

[4]

[Anonymous], IEEE COMMUN IN PRESS

[5]

Cimini L. J. Jr, 1997, Mobile Multimedia Communications, P247

[6]

GOLAY MJE, 1949, P IRE, V37, P1031

[7] Adaptive multicarrier modulation: A convenient framework for time-frequency processing in wireless communications [J].

Keller, T ;

Hanzo, L .

PROCEEDINGS OF THE IEEE, 2000, 88 (05) :611-640

[8]

KWON HM, 1986, IEEE J OCEANIC ENG, V11, P97, DOI 10.1109/JOE.1986.1145138

[9] A Distributed Technique For Recognition And Retrieval of Faces With Time-Varying Expressions [J].

Megherbi, Dalila B. ;

Miao, Yi .

2009 IEEE INTERNATIONAL CONFERENCE ON COMPUTATIONAL INTELLIGENCE FOR MEASUREMENT SYSTEMS AND APPLICATIONS, 2009, :8-13

[10] Energy-efficient design in wireless OFDMA [J].

Miao, Guowang ;

Himayat, Nageen ;

Li, Ye ;

Bormann, David .

2008 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS, PROCEEDINGS, VOLS 1-13, 2008, :3307-3312

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