Optimal Relay Selection and Power Allocation in Cooperative Cognitive Communication System
نویسندگان
چکیده
منابع مشابه
Optimal Relay Selection and Power Allocation in Cooperative Cognitive Communication System
This paper focuses on the optimal relay selection and power allocation issue, which studies the communication between SS (Secondary Source) and two SDs (Secondary Destinations) through single relay in CR (cooperative cognitive communication) system. Sufficiently takes the multi-antenna relay, primary-secondary users coexisting, and AF (Amplify and Forward) relay mode as the researching backgrou...
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Since the electromagnetic spectrum resource is becoming more and more scarce, a new communication scheme is proposed for the cognitive cooperative system. In this scheme, to avoid harmful interference with primary users, the transmit power of the secondary source and relays are limited with respect to the interference power constraints at primary users and coefficients of fading channels. Moreo...
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In this work, the issue of joint relay selection and power allocation in Underlay MIMO Cooperative Cognitive Radio Networks (U-MIMO-CCRN) is addressed. The system consists of a number of secondary users (SUs) in the secondary network and a primary user (PU) in the primary network. We consider the communications in the link between two selected SUs, referred to as the desired link which is enhan...
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In this paper, we consider the joint problem of relay selection and optimal power allocation for multi-relay amplify-and-forward (AF) cooperative communication system over frequency selective fading channels. An optimization model combined relay selection and power allocation under a total transmission power budget is formulated. Then, this combinatorial problem is solved in a distributed strat...
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ژورنال
عنوان ژورنال: International Journal of Future Generation Communication and Networking
سال: 2014
ISSN: 2233-7857
DOI: 10.14257/ijfgcn.2014.7.6.18