Paper Info
Title
Potential Games for Energy-Efficient Power Control and Subcarrier Allocation in Uplink Multicell OFDMA Systems
Abstract
The problem of noncooperative resource allocation in multicell uplink orthogonal frequency division multiple access (OFDMA) systems is considered in this paper. Noncooperative games for subcarrier allocation and transmit power control are considered, aiming at maximizing the users' SINRs and, most notably, the users' energy efficiency, measured in bit/Joule and representing the number of error-free delivered bits for each Joule of energy used for transmission. The theory of potential games is used to come up with several noncooperative games admitting Nash equilibrium points. Since the proposed resource allocation games exhibit a computational complexity that may be in some cases prohibitive, approximate, reduced-complexity, implementations are also considered. For comparison purposes, some considerations on social-optimum solutions are also discussed. Numerical results confirm that the proposed resource allocation schemes are effective in increasing the network energy efficiency (as compared to rate-maximizing schemes), thus permitting to optimize the use of the energy stored in the battery. Moreover, the proposed approximate implementations exhibit a performance very close to that of the exact procedures.
Year
DOI
Venue
2012
10.1109/JSTSP.2011.2177069
Selected Topics in Signal Processing, IEEE Journal of
Keywords
Field
DocType
OFDM modulation,cellular radio,computational complexity,frequency division multiple access,game theory,power control,resource allocation,subcarrier multiplexing,Nash equilibrium point,SINR,computational complexity,energy-efficient power control,error-free delivered bits,multicell uplink orthogonal frequency division multiple access system,network energy efficiency,noncooperative game,noncooperative resource allocation,potential games,social-optimum solution,subcarrier allocation,transmit power control,uplink multicell OFDMA system,Energy efficiency,Nash equilibrium,orthogonal frequency division multiple access (OFDMA),potential games,power control,social optimum,subcarrier allocation
Subcarrier,Mathematical optimization,Transmitter power output,Computer science,Efficient energy use,Power control,Orthogonal frequency-division multiple access,Resource allocation,Game theory,Frequency-division multiple access
Journal
Volume
Issue
ISSN
6
2
1932-4553
Citations 
PageRank 
References 
85
2.91
20
Authors
4
Name
Order
Citations
PageRank
Stefano Buzzi1195175.30
giulio colavolpe21298.05
Daniela Saturnino31164.12
Alessio Zappone4164169.84