Title
Multiple-Level Power Allocation Strategy for Secondary Users in Cognitive Radio Networks.
Abstract
In this paper, we propose a new multiple-level power allocation strategy for the secondary user (SU) in cognitive radio (CR) networks. Different from the conventional strategies, where SU either stays silent or transmit with a constant/binary power depending on the busy/idle status of the primary user (PU), the proposed strategy allows SU to choose different power levels according to a carefully designed function of the receiving energy. The way of the power level selection at SU side is optimized to maximize the achievable rate of SU under the constraints of average transmit power at SU and average interference temperature to PU. Simulation results demonstrate that the proposed strategy can significantly improve the throughput of SU compared to the conventional strategies.
Year
DOI
Venue
2013
10.1186/1687-6180-2014-51
EURASIP J. Adv. Sig. Proc.
Keywords
DocType
Volume
Cognitive radio (CR), Multiple-level power allocation, Spectrum sensing, Statistical reliability, Sensing-based spectrum sharing
Journal
abs/1307.1508
Issue
ISSN
Citations 
1
1687-6180
4
PageRank 
References 
Authors
0.40
12
5
Name
Order
Citations
PageRank
Zhong Chen140.40
Feifei Gao23093212.03
Xianda Zhang380968.13
James C. F. Li416710.94
Ming Lei5325.64