@article{67e8af247dc44a8aafa86ddc396c5ca9,
title = "A New SIR-Based Sigmoid Power Control Game in Cognitive Radio Networks",
abstract = "Interference resulting from Cognitive Radios (CRs) is the most important aspect of cognitive radio networks that leads to degradation in Quality of Service (QoS) in both primary and CR systems. Power control is one of the efficient techniques that can be used to reduce interference and satisfy the Signal-to-Interference Ratio (SIR) constraint among CRs. This paper proposes a new distributed power control algorithm based on game theory approach in cognitive radio networks. The proposal focuses on the channel status of cognitive radio users to improve system performance. A new cost function for SIR-based power control via a sigmoid weighting factor is introduced. The existence of Nash Equilibrium and convergence of the algorithm are also proved. The advantage of the proposed algorithm is the possibility to utilize and implement it in a distributed manner. Simulation results show considerable savings on Nash Equilibrium power compared to relevant algorithms while reduction in achieved SIR is insignificant.",
author = "Al-Gumaei, {Yousef Ali} and Noordin, {Kamarul Ariffin} and Reza, {Ahmed Wasif} and Kaharudin Dimyati",
note = "Funding Information: Y. A. Al-Guamei and K. A. Noordin are supported by University of Malaya Research Grant (UMRG) No. RG088/12ICT, A. W. Reza is supported by University of Malaya High Impact Research (HIR) Grant (UM.C/HIR/MOHE/ENG/51) sponsored by the Ministry of Higher Education (MOHE), Malaysia, and K. Dimyati is supported by FRGS/1/2012/TK06/UPNM/01/01. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Funding Information: Funding: Y. A. Al-Guamei and K. A. Noordin are supported by University of Malaya Research Grant (UMRG) No. RG088/12ICT, A. W. Reza is supported by University of Malaya High Impact Research (HIR) Grant (UM.C/HIR/MOHE/ENG/51) sponsored by the Ministry of Higher Education (MOHE), Malaysia, and K. Dimyati is supported by FRGS/1/2012/TK06/UPNM/01/01. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. Publisher Copyright: {\textcopyright} 2014 Al-Gumaei et al.",
year = "2014",
month = oct,
day = "6",
doi = "10.1371/journal.pone.0109077",
language = "English",
volume = "9",
journal = "PLoS ONE",
issn = "1932-6203",
publisher = "Public Library of Science",
number = "10",
}