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An underlay cognitive multisource multirelay cooperative network is proposed and an analytical framework to evaluate the system performance is formulated. Under both maximum transmission power and interference power constraints, exact and asymptotic outage probabilities for proactive decode-and-forward relaying over Rayleigh fading channels are derived. Both multiuser diversity and cooperative diversity...
The outage behavior of a dual-hop multi-source multi-relay cooperative communication network is investigated. With the presence of multiple cochannel interferers at both the relays and destination, we propose a signal-to-interference-plus-noise ratio based scheme for the combined use of cooperative diversity and multiuser diversity. Firstly, the best source node with the highest direct-link signal-to-interference-plus-noise...
In this paper, we consider a cooperative relaying based cognitive radio (CR) networks in which the primary receivers are protected by peak interference power constraint. In such scenario, finding the transmission opportunity with a target data rate by maintaining the interference power constraint is the prime goal of the system. We show that cooperative relaying techniques can significantly reduce...
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