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Distributed Power Allocation for Secondary Users in a Cognitive Radio Scenario

DSpace at IIT Bombay

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Title Distributed Power Allocation for Secondary Users in a Cognitive Radio Scenario
 
Creator NADKAR, T
THUMAR, V
TEJ, GPS
MERCHANT, SN
DESAI, UB
 
Subject Cognitive radio
overlay spectrum sharing
power allocation
interference
game theory
CONTROL GAME
WIRELESS DATA
NETWORKS
SYSTEMS
 
Description The major contribution of this paper is distributed power allocation for a multi-user multi-channel Cognitive Radio (CR) network which deploys overlay spectrum sharing by the Primary Users (PUs) and Secondary Users (SUs), and Frequency Division Multiplexing Access (FDMA) for the SUs. The transmit power of each SU is constrained by an individual node power budget, the interference threshold on the PU band, as well as the interference caused to the neighboring SUs. Motivated by the non-convex structure of the problem and the need to execute the power allocation distributedly, the problem is cast within a game theoretic frame-work. Pay-off functions for the SUs are formulated to suit the system model, and the Nash Equilibrium for the game is analyzed. Simulation results are provided to validate the mathematical concepts and to evaluate the performance of the proposed distributed power control algorithm in comparison with other relevant schemes.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2014-10-15T14:30:40Z
2014-10-15T14:30:40Z
2012
 
Type Article
 
Identifier IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, 11(4)1576-1586
http://dx.doi.org/10.1109/TWC.2012.020712.111502
http://dspace.library.iitb.ac.in/jspui/handle/100/15107
 
Language en