A Waiting-Time Auction Based Dynamic Spectrum Allocation Algorithm in Cognitive Radio Networks
Auction based dynamic spectrum access is an efficient approach to solve the spectrum shortage problem. However, conventional spectrum auction algorithms mainly concentrated on maximizing the revenue, under which the Dynamic Spectrum Access (DSA) users with poorer cognitive abilities are usually hard to win the auction for spectrum access. In this paper, the authors propose a novel Waiting-Time Auction (WTA) algorithm to improve the winning probabilities for the DSA users with poorer cognitive abilities. Specifically, they formulate the spectrum allocation as an auction game. In the auction, all game users bid with waiting time to obtain the spectrum access opportunities, unlike the conventional approaches where users bid by using money.