NDLI: A contracts-based approach for spectrum sharing among cognitive radios

Content Provider	IEEE Xplore Digital Library
Author	Kalathil, D.M. Jain, R.
Copyright Year	2010
Description	Author affiliation: Department of Electrical Engineering, University of Southern California (Kalathil, D.M.) \|\| EE & ISE Departments, University of Southern California (Jain, R.)
Abstract	Development of dynamic spectrum access and allocation techniques recently have made feasible the vision of cognitive radio systems. However, a fundamental question arises: Why would licensed primary users of a spectrum band allow secondary users to share the band and degrade performance for them? This incentive issue has been sought to be addressed by designing incentive-compatible auction mechanisms [3]. This, however, does not solve the problem as the auctioneer (usually the primary user) is also an interested party. So, why would the secondary user trust the primary user to not manipulate the auction. We propose that a more appropriate mechanism to solve this incentive problem is a contractual mechanism. In this paper, we consider a simple setting: A single primary transmitter-receiver pair and a single secondary transmitter-receiver pair with a Gaussian interference channel between them. We consider the setting of complete information when channel attenuation coefficients and noise levels at the receivers are common knowledge. We consider when receivers cooperate to do successive-interference cancellation. In contrast to the results of [4] for unlicensed bands, we show that it is possible to achieve socially optimal rate allocations with contract mechanisms in licensed bands.
Starting Page	91
Ending Page	97
File Size	441541
Page Count	7
File Format	PDF
ISBN	9781424475230
e-ISBN	9781424475254
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-31
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	INRIA
Subject Keyword	Degradation Costs Radio transmitters Pricing Signal processing Attenuation Interference channels Cognitive radio Contracts Noise level
Content Type	Text
Resource Type	Article

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