Title :
Multi-Carrier Based Cooperative Cognitive Network
Author :
Golrezaei, Negin ; Mansourifard, Parisa ; Nasiri-Kenari, Masoumeh
Author_Institution :
Electr. Eng. Dept., Sharif Univ. of Technol., Tehran, Iran
Abstract :
In this paper, we propose a novel cognitive cooperative relaying scheme using multi-carrier transmission in which cognitive users assist primary users by relaying their information using Decode and Forward (DF) strategy. The best cognitive user is selected as a relay for a Primary User (PU). Outage probability of the PU is investigated. Our analyses show substantial improvements in the outage probability of the PU when using the proposed cooperative scheme compared to non-cooperative one. We also perform several simulations to corroborate our theoretical results.
Keywords :
cognitive radio; cooperative communication; decode and forward communication; probability; DF strategy; PU; cognitive cooperative relaying scheme; cognitive users; decode and forward strategy; multicarrier transmission; multicarrier-based cooperative cognitive network; outage probability; primary users; Cognitive radio; Fading; Mutual information; Probability; Relays; Signal to noise ratio;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2011 IEEE 73rd
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-8332-7
DOI :
10.1109/VETECS.2011.5956379
