Energy Efficiency and Spectral Efficiency Tradeoff in Interference-Limited Wireless Networks

Author

Yuzhou Li ; Min Sheng ; Chungang Yang ; Xijun Wang

Author_Institution

State Key Lab. of ISN, Xidian Univ., Xi´an, China

Volume

17

Issue

10

fYear

2013

fDate

Oct-13

Firstpage

1924

Lastpage

1927

Abstract

This letter investigates the fundamental tradeoff between energy efficiency (EE) and spectral efficiency (SE) for interference-limited wireless networks (IWNs), which is a nonconvex optimization and NP-hard problem. A general algorithm procedure (GAP) embedded with an iterative power allocation algorithm (IPAA) is proposed, which has good performance with the advantages of fast convergence, low complexity and insensitivity to initial values. Simulation results explicitly depict the EE-SE tradeoff curve for IWNs.

Keywords

energy conservation; interference (signal); iterative methods; radio networks; EE-SE tradeoff curve; NP-hard problem; energy efficiency; general algorithm procedure; interference-limited wireless networks; iterative power allocation algorithm; nonconvex optimization; spectral efficiency tradeoff; Ad hoc networks; Complexity theory; Convergence; Optimized production technology; Resource management; Wireless networks; Energy efficiency; power allocation; spectral efficiency;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.082613.131286

Filename

6587855