Two-fold pricing for competitive spectrum sharing in cognitive wireless mesh networks

A market-based two-fold relay-spectrum pricing (TFRSP) scheme for competitive spectrum sharing in cognitive wireless mesh network is proposed. The TFRSP scheme can guarantee non-negative profit for each secondary user for a wide range of user utilities and pricing functions. We determine the relay and spectrum pricing functions according to traffic load and profit maximization. Simulation results show that, compared to two recently proposed single-fold pricing schemes, the proposed TFRSP scheme significantly increases the time average network profit and time average network throughput, and results in a more fair profit distribution among the mesh routers.