MAINTAINING SPECTRUM SHARING THROUGH SOFTWARE PUZZLES IN WSN

ELECTRONICS AND TELECOMMUNICATION ENGINEERING

Nowadays demand for spectrum is growing very fast but being a scarce asset, if not properly shared would result in wastage and unauthenticate usage. The problem can be solved by sharing the spectrum efficiently. Spectrum sharing is been used at many places in our day-to-day life, different laptops can communicate with each other using bluetooth or wi-fi router which is sharing wi-fi spectrum with other users, but There is no central brain which can automatically detect the unused spectrum and accordingly change its transmission or reception parameters to the needful users. We adopted a mechanism in which a CR acting as a auctioneer presents the spectrum availabilty to the bidders and introduces a puzzle to solve as a method to gain the access of the spectrum. Our algorithm provides a centralized, easy to implement and computational fast multiple access scheme which can be verified by all the participating users.

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