Paper Info
Title
An amplify-and-forward scheme for cognitive radios
Abstract
In this paper, we propose an opportunistic amplify-and-forward relaying scheme for a cognitive radio network, which is aimed at allowing a secondary user (SU) to transmit over the same time-frequency slot of a primary user (PU). In our scheme, the SU amplifies and transmits the PU signal it receives, by using as relaying gain the information symbols that the SU wishes to transmit towards its own secondary receiver. The information theoretic limits of the proposed protocol are investigated by showing that, in some operative conditions of practical interest, the SU can embed its information symbols in the PU signal, without violating the cognitive radio principle of protecting the PU transmission and, at the same time, by attaining low transmission rates.
Year
DOI
Venue
2014
10.1109/ICASSP.2014.6854095
Acoustics, Speech and Signal Processing
Keywords
Field
DocType
amplify and forward communication,cognitive radio,protocols,radio receivers,PU signal,PU transmission,amplify-and-forward scheme,cognitive radio network,cognitive radio principle,information theoretic limits,opportunistic amplify-and-forward relaying scheme,primary user,protocol,secondary receiver,secondary user,time-frequency slot,transmission rates
Mathematical optimization,Telecommunications,Computer science,Computer network,Cognitive radio
Conference
ISSN
Citations 
PageRank 
1520-6149
4
0.40
References 
Authors
25
4
Name
Order
Citations
PageRank
Francesco Verde125424.42
Anna Scaglione22559225.41
Donatella Darsena318217.78
Giacinto Gelli421122.46