NDLI: SDR implementation and verification of distributed load balancing spectrum allocation algorithm

Content Provider	IEEE Xplore Digital Library
Author	Olano, N. Petrova, M. Mahonen, P.
Copyright Year	2009
Description	Author affiliation: RWTH Aachen University, Department of Wireless Networks, Kackerstrasse 9, 52072 Aachen, Germany (Olano, N.; Petrova, M.; Mahonen, P.)
Abstract	In this paper we verify and study through implementation our earlier game theory algorithm for load balanced dynamic channel assignment. In our algorithm every cognitive radio is initially assigned a channel in a random fashion. The radios periodically evaluate a cost function related to a Quality of Service (QoS) parameter and may change the transmission channel with probability proportional to the excess of the current cost over a cost threshold set by the user application. The actions of the cognitive radios are concurrent and the decision to switch the channel is only based on the current local link quality, which means that neither network state information exchange nor history keeping is required. The earlier theoretical work has shown that the balls-and-bins game theory algorithm has attractive convergence properties and low complexity. In this paper we evaluate the convergence properties of our dynamic channel assignment protocol over real channel conditions for different number of channels and traffic distributions. Our testbed results show that the optimal channel allocations are found in most of the cases within five to eight iterations depending on the complexity of the test case. The proposed algorithm is a good candidate for resource allocation using only local information.
Starting Page	2613
Ending Page	2617
File Size	289371
Page Count	5
File Format	PDF
ISBN	9781424451227
e-ISBN	9781424451234
DOI	10.1109/PIMRC.2009.5450059
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-13
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Load management Cost function Game theory Cognitive radio Quality of service Switches Convergence Testing History Protocols
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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