Joint sensing time and power allocation in cooperatively cognitive networks

The jointly optimal allocation of sensing time and power for a two-user amplify-and-forward overlay cognitive network is developed by maximizing the averaged aggregate throughput of the secondary network. In particular, observing that the sensing duration lies within a strict interval, the jointly o...

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Bibliographic Details
Published in:IEEE communications letters 2010-02, Vol.14 (2), p.163-165
Main Authors: CHENGSHI ZHAO, KWAK, Kyungsup
Format: Article
Language:English
Subjects:
Aggregates
Applied sciences
Bit error rate
Chromium
Cognitive radio
Cognitive radio (CR)
cooperative communications
Cost function
Exact sciences and technology
Information technology
Interference constraints
optimization
power allocation
Protection
Radiocommunication specific techniques
Radiocommunications
Signal detection
spectrum sensing
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Throughput
Transmission and modulation (techniques and equipments)
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Description
Summary:The jointly optimal allocation of sensing time and power for a two-user amplify-and-forward overlay cognitive network is developed by maximizing the averaged aggregate throughput of the secondary network. In particular, observing that the sensing duration lies within a strict interval, the jointly optimal strategy of sensing time and power allocation is proved to be tractable by sequential optimization.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2010.02.092102