Spectrum auctions for multimedia streaming over mobile cognitive radio networks

Abstract

Cognitive radio technologies have been proposed as a promising communication paradigm to efficiently utilize the spectrum by dynamically accessing the temporally licensed spectrum in an opportunistic way. In secondary spectrum market, the primary user resell the idle spectrum to secondary users who are willing to pay some payment to primary user. Therefore, auction is a nature mechanism for allocating spectrum. Existing spectrum auction designs, fail to consider both the characteristics of multimedia data and the potential mobility of secondary users. In this paper, we investigate the problem of multimedia streaming communication over mobile cognitive radio networks. We consider both the characteristics of multimedia and the mobility of secondary users in cognitive radio networks. We consider a spectrum auction that enable exclusive channel bidding, while exclusive channel access is critical for the support of mobile wireless secondary users in mobile cognitive radio networks. Therefore, we propose a two dimensional auction by nature, allocation a channel either exclusively or non-exclusively. Simultaneously, we also give analysis of the proposed spectrum auction, and prove that the proposed algorithm can efficiently allocate the spectrum and achieve maximal social welfare.