Paper Info
Title
Secondary Spectrum Sharing in Primary Multicasting Systems
Abstract
We propose a cognitive relaying protocol with primary multicasting systems, where a primary transmitter broadcasts a common message to K licensed primary receivers. It typically adjusts its transmission rate to the user suffering from the worst channel condition in order to serve all the users simultaneously. In the limit of a large number of multicast receivers, cooperation is shown to effectively overcome this problem. In this paper, an unlicensed secondary system acts as a relay for the primary receivers. Furthermore, the secondary system achieves spectrum sharing by superimposing the secondary transmission on primary signals. We show that there exists a power allocation threshold above which the cognitive relaying protocol is able to provide better (or at least an equal) outage performance for the primary system and, at the same time, to enable the secondary system to have an opportunity to access the spectrum.
Year
DOI
Venue
2012
10.1109/VETECS.2012.6240245
VTC Spring
Keywords
Field
DocType
radio transmitters,worst channel condition,user suffering,primary transmitter broadcasts,cognitive radio,common message,multicast receivers,outage performance,resource allocation,primary signals,primary multicasting systems,k licensed primary receivers,power allocation threshold,secondary transmission,secondary spectrum sharing,radio receivers,multicast protocols,transmission rate,cognitive relaying protocol,resource management,encoding,wireless communication,strontium,protocols
Transmission rate,Transmitter,Computer science,Computer network,Communication channel,Electronic engineering,Resource allocation,Multicast,Spectrum sharing,Relay,Cognitive radio
Conference
ISSN
ISBN
Citations 
1550-2252 E-ISBN : 978-1-4673-0988-2
978-1-4673-0988-2
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Jung-Hwa Wui1111.91
Dongwoo Kim259060.51