WIRELESS channels often suffer from time-varying fading caused by multi-path propagation and Doppler shifts, resulting in significant performance degradation. Recently, one important technique that exploits spatial diversity achieved by employing multiple transceiver antennas has been shown to be very effective in coping with channel fadings. Collusion-Resistant Repeated Double Auctions for Relay Assignment in Cooperative Networks However, in reality equipping each wireless node with multiple antennas may not be feasible, as the footprints of multiple antennas may not fit in the wireless node. To enhance spatial diversities among wireless nodes, cooperative communications, having each node equipped with a single antenna and exploiting the spatial diversity via antennas of some relay nodes, have exhibited great potentials in the improvement of both data rates and qualities Collusion-Resistant Repeated Double Auctions for Relay Assignment in Cooperative Networks. Various types of networks particularly the mobile cellular networks are hungering for high-rate and quality-guaranteed communication techniques to cater ever increasing demands of multimedia data services. However, deploying more communication infrastructures (base stations) to existing 3G/4G wireless networks has been shown to be Collusion-Resistant Repeated Double Auctions for Relay Assignment in Cooperative Networks very costly and thus is not be applicable to small cell phone carriers. In contrast, cooperative communication technology does not require adding any extra infrastructures into existing networks but offers great flexibilities. With the cooperative communication, cell phone carriers can economically enhance their network coverage and data rates by leasing their infrastructures Collusion-Resistant Repeated Double Auctions for Relay Assignment in Cooperative Networks from other carriers. They are the independent entities perating marketing and billing services on the behalf of three of them to maximize their own benefits. These mentioned mechanisms thus may not always be applicable to the scenarios where the auctioneer is rational. This raises an important question, how to give each selfish entity an incentive to encourage it to participate in the trading while considering the revenue of the auctioneer Collusion-Resistant Repeated Double Auctions for Relay Assignment in Cooperative Networks.