Continuous Transmit in Cognitive Radio Systems: Outage Performance of Selection Decode-and-forward Relay Networks Over Nakagami-m Fading Channels

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Provided by: Springer Science+Business Media
Topic: Networking
Format: PDF
Cognitive radio is a promising technology that uses radio spectrum opportunistically and efficiently. In this paper, they present the performance of 'Always transmit' strategy, which consists of allowing the cognitive source to transmit over all time slots and in any time slot. Thus, the cognitive source will be able to operate continuously whenever either the primary user is active or absent. The proposed strategy is projected into dual-hop communication systems with decode-and-forward and relay selection over independent but not necessarily identically distributed Nakagami-m fading channels.
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