NDLI: An optimal transmission policy for opportunistic spectrum access in fading channels

Content Provider	IEEE Xplore Digital Library
Author	Hua Xiao Huaizong Shao Fan Yang Wei Huang Qicong Peng
Copyright Year	2011
Description	Author affiliation: Military Representative Office in Chengdu, Chengdu, China (Wei Huang) \|\| School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu, China (Hua Xiao; Huaizong Shao; Fan Yang; Qicong Peng)
Abstract	In this paper, we study transmission policies for opportunistic spectrum access over multiple Rayleigh fading channels. We formulate the opportunistic spectrum access problem as a joint channel access and power control problem with the objective that maximizes expectation sum of throughput under the constraint of limited battery capacity over finite time slots. In this problem, we consider the transmission power limitation for each channel to guarantee fairness of spectrum access. Furthermore, we propose a discrete-time Markov chain model, which can account for primary users' (PUs) activities and the fading characteristics. Based on this Markov model, we efficiently solve the problem via dynamic programming and propose the optimal transmission policy. Extensive simulations verify the performance of the proposed scheme.
Starting Page	212
Ending Page	215
File Size	236120
Page Count	4
File Format	PDF
ISBN	9781457706028
e-ISBN	9781457706035
e-ISBN	9781457706011
DOI	10.1109/ICCPS.2011.6089783
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-21
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Markov processes Throughput Batteries Sensors Dynamic programming Cognitive radio
Content Type	Text
Resource Type	Article

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