Title :
A Novel Power Control Approach Based on ϵ-Greedy Monte Carlo Method in Cognitive Radio System
Author :
Xiao, Qinghai ; Gao, Qunyi ; Li, Yunzhou ; Zhou, Shidong ; Wang, Jing
Abstract :
In this paper, we consider a model of two-user channel with one primary user and one secondary user. Then we present a novel power control approach based on ε-greedy Monte Carlo method to solve transmit-power control problem of the secondary user. Theoretical analysis and simulation results both show that the approach can not only optimize transmit-power control of the secondary user, but also be used to determine sensing error or interference temperature limit in cognitive-radio environment. And it is also proved that the approach is valid even when the interference temperature limit or sensed interference level is not known or not known accurately.
Keywords :
Monte Carlo methods; cognitive radio; power control; telecommunication control; ε-greedy Monte Carlo method; cognitive radio system; interference temperature limit; secondary user; sensing error; transmit-power control optimization; Cognitive radio; Error correction; Interference; Laboratories; Microwave technology; Power control; Power engineering and energy; Power system modeling; Temperature control; Temperature sensors; ϵ-greedy MC method; monte carlo method; penalty mechanism; reinforement learning;
Conference_Titel :
Cognitive Radio Oriented Wireless Networks and Communications, 2008. CrownCom 2008. 3rd International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2301-9
Electronic_ISBN :
978-1-4244-2302-6
DOI :
10.1109/CROWNCOM.2008.4562467
