Packet relaying control in sensing-based spectrum sharing systems

Cognitive relaying has been introduced for opportunistic spectrum access systems by which a secondary node forwards primary packets whenever the primary link faces an outage condition. For spectrum sharing systems, cognitive relaying is parametrized by an interference power constraint level imposed...

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Bibliographic Details
Published in2013 IEEE Wireless Communications and Networking Conference (WCNC) pp. 685 - 690
Main Authors Foukalas, F., Khattab, T., Poor, H.V.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2013
Subjects
Artificial neural networks
dynamic programming
packet relaying
Programming
Sensors
Silicon
spectrum sensing
spectrum sharing
value iteration
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Summary:Cognitive relaying has been introduced for opportunistic spectrum access systems by which a secondary node forwards primary packets whenever the primary link faces an outage condition. For spectrum sharing systems, cognitive relaying is parametrized by an interference power constraint level imposed on the transmit power of the secondary user. For sensing-based spectrum sharing, the probability of detection is also involved in packet relaying control. This paper considers the choice of these two parameters so as to maximize the secondary nodes' throughput under certain constraints. The analysis leads to a Markov decision process using dynamic programming approach. The problem is solved using value iteration. Finally, the structural properties of the resulting optimal control are highlighted.
ISBN:9781467359382
1467359386
ISSN:1525-3511
1558-2612
DOI:10.1109/WCNC.2013.6554646