Optimal pricing for integrated services networks
Internet economics
IEEE Spectrum
Channel assignment schemes for cellular mobile telecommunication systems: A comprehensive survey
IEEE Communications Surveys & Tutorials
Spectrum management policy options
IEEE Communications Surveys & Tutorials
Operating point selection for primary and secondary users in cognitive radio networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Stability and performance analysis of randomly deployed wireless networks
Journal of Computer and System Sciences
Full length article: Positioning-based framework for secondary spectrum usage
Physical Communication
Spectrum sharing in the gray space
Telecommunications Policy
Spectrum Sharing in Competing Wireless Systems: A Simulation Study Using WLAN and WMAN
Journal of Network and Systems Management
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Most wireless systems receive a license that gives them exclusive access to a block of spectrum. Exclusivity guarantees adequate quality of service, but it also leads to inefficient use of spectrum. Even when the license holder is idle, no other device can use the spectrum. This paper explores an alternative paradigm for secondary access to spectrum, where a secondary device can transmit when and only when the primary license holder grants permission. In this spectrum usage paradigm, each secondary device makes a request for temporary access to spectrum by providing a primary license holder with information such as its required bandwidth, its required signal to interference ratio, its transmit power, and its location, which is essential for a primary license holder in making an admission decision. This explicit coordination makes it possible to protect the quality of service of both primary and secondary, while gaining the efficiency of spectrum sharing. In this paper, we consider the case where the primary license holder is a GSM-based cellular carrier. We show that our proposed sharing scheme works well even with simple admission control and primitive frequency assignment algorithms. Moreover, imprecise location information does not significantly undermine the performance of our scheme. We also demonstrate that our scheme is attractive to a license holder by showing that a cellular carrier can profit from offering a secondary device access to spectrum at a price lower than it would normally charge a cellular call.