Paper Info
Title
Joint Optimization Algorithm of Cooperative Sensing and Transmission Scheme in Cognitive Radio.
Abstract
In order to make cognitive radio (CR) network obtain the maximal aggregate throughput, a joint optimization algorithm of cooperative spectrum sensing and data transmission for a two-user CR network is firstly proposed. In this algorithm, the CR node with high signal noise ratio(SNR) relays its sensing information to the CR node with low SNR in order to improve the performance of cooperative sensing, while the CR node with low SNR helps the CR node with high SNR transmit data in order to improve the throughput of cooperative transmission. The sensing pairing protocol is also proposed to improve the throughput of the multiuser CR network through selecting multiple cooperative pairs. The simulation results show that the optimal power allocation scheme for maximizing the aggregate throughput is achievable, and compared with the traditional algorithm, the proposed algorithm can make the throughput of CR furthest improve 0.2bps/Hz.
Year
DOI
Venue
2014
null
AD HOC & SENSOR WIRELESS NETWORKS
Keywords
Field
DocType
Cognitive radio,spectrum sensing,energy detection,cooperative transmission,joint optimization,throughput
Transmission (mechanics),Computer science,Computer network,Optimization algorithm,Cognitive radio
Journal
Volume
Issue
ISSN
20
3-4
1551-9899
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Min Jia115839.37
Xin Liu230.72
Xuemai Gu301.01
Xuezhi Tan48014.98