Title :
Cooperative cognitive radio protocol exploiting primary retransmissions in Nakagami-m fading
Author :
Mafra, Samuel Baraldi ; Fernandez, Evelio M G ; Souza, Richard Demo ; Rebelatto, João Luiz
Author_Institution :
Fed. Univ. of Parana (UFPR), Curitiba, Brazil
Abstract :
We consider a cooperative overlay cognitive network, where the secondary exploits the primary retransmissions. We show that by using cooperation, the secondary rate can be considerably increased when compared to other schemes, without causing major impact on the primary performance. The best configuration for the proposed scheme is that in which the secondary nodes are close to the primary transmitter.
Keywords :
Nakagami channels; cognitive radio; cooperative communication; protocols; Nakagami-m fading channel; cooperative cognitive radio protocol; cooperative overlay cognitive network; primary transmitter; secondary nodes; Cognitive radio; Interference; Protocols; Receivers; Relays; Throughput; Transmitters;
Conference_Titel :
Wireless Communication Systems (ISWCS), 2012 International Symposium on
Conference_Location :
Paris
Print_ISBN :
978-1-4673-0761-1
Electronic_ISBN :
2154-0217
DOI :
10.1109/ISWCS.2012.6328472