Multi-Winner Spectrum Allocation in Cognitive Radio Networks: A Single-Sided Auction Theoretic Modelling Approach with Sequential Bidding

Cognitive radio (CR) has evolved as a novel technology for overcoming the spectrum-scarcity problem in wireless communication networks. With its opportunistic behaviour improving spectrum-usage efficiency, CR enables desired secondary users (SUs) to dynamically utilize idle spectrum owned by primary users. On sensing identify frequency bands, proper spectrum-allocation mechanisms need be designed provide an effectual use of resource. In this paper, we propose single-sided sealed-bid sequential-bidding-based auction framework that extends channel-reuse property mechanism efficiently redistribute unused channels. Existing designs primarily aim at maximizing auctioneer’s revenue, due which certain constraints remain excluded their models. We address two such constraints, viz. dynamics opportunities and varying availability time vacant channels, formulate allocation maximizes utilization spectrum. The auctioneer strategises winner determination based on bids collected from SUs sequentially leases while restricting channel assignment single-channel-multi-user allocation. To model spectrum-sharing mechanism, initially developed group-formation algorithm members group access common channel. Furthermore, pricing algorithms are operated under constrained circumstances, guarantees truthfulness model. An analysis simulation results comparison with existing models revealed effectiveness proposed approach assigning unexploited