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In spectrum trading markets, auctions are organized by spectrum holders (SHs) to distribute channels. As buyers, wireless service providers (WSPs) acquire channels to deploy services to end users. To optimize the profits, it is essential for the WSPs to determine their bidding strategies, which are affected by two key aspects: the service position to the end users and the auction schemes enforced...
In this paper, we tackle the spectrum allocation problem in cognitive radio (CR) networks with time-frequency flexibility consideration using combinatorial auction. Different from all the previous works using auction mechanisms, we model the spectrum opportunity in a time-frequency division manner. This model caters to much more flexible requirements from secondary users (SUs) and has very clear application...
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