University of Oulu

S. Iellamo, M. Coupechoux and Z. Khan, "SOSAP: A Pareto-Efficient Spectrum Access Protocol for Cognitive Radio Networks," 2016 IEEE 84th Vehicular Technology Conference (VTC-Fall), Montreal, QC, 2016, pp. 1-5. doi: 10.1109/VTCFall.2016.7881228

SOSAP : a pareto-efficient spectrum access protocol for cognitive radio networks

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Author: Iellamo, Stefano1; Coupechoux, Marceau2; Khan, Zaheer3
Organizations: 1Foundation of Research and Technology Hellas, Institute of Computer Science, Greece
2LTCI, CNRS, Telecom ParisTech, University Paris-Saclay, France
3University of Oulu, CWC, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.4 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2016
Publish Date: 2018-08-07


Decentralized cognitive radio networks (CRN) require efficient channel access protocols to enable cognitive secondary users (SUs) to access the primary channels in an opportunistic way Without any coordination. In this paper, we develop a distributed spectrum access protocol for the case where the SUs aim to maximize the total system throughput while competing for spectrum resources. To model the competition amongst SUs, we formulate the spectrum access problem as a distributed welfare game, in which at each iteration each SU has to compute its marginal contribution to the system’s welfare. Moreover, the SUs also need to decide which resource (channel) they should access at the next iteration. To address these challenges, we propose a stochastic learning algorithm based on payoff-based log-linear learning and prove its convergence towards a Pareto-efficient Nash Equilibrium state.

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Series: IEEE Vehicular Technology Conference
ISSN: 1550-2252
ISSN-L: 1550-2252
ISBN: 978-1-5090-1701-0
ISBN Print: 978-1-5090-1702-7
Pages: 1 - 5
DOI: 10.1109/VTCFall.2016.7881228
Host publication: IEEE Vehicular Technology Conference Proceedings
Conference: IEEE Vehicular Technology Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
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