Spectrum Leasing to Multiple Cooperating Secondary Cellular Networks
In cognitive radio networks, cooperation between primary and secondary users can enhance the spectrum leasing and eventually improve each network's performance. In this paper, the authors focus on the cooperation between primary network and multiple secondary networks. They propose a cooperative communication-aware spectrum leasing framework, in which the primary network leverages secondary APs as cooperative relays, and decides the optimal strategy on the relay selection and the price for spectrum leasing. Based on primary network's strategy, secondary networks determine the length of spectrum access time they purchase from the primary network.