Modelling opportunistic spectrum renting in mobile cellular networks

Spectrum pooling enables the opportunistic usage of licensed frequency bands for secondary users during the idle periods of primary users, which can be applied to relieve temporary bottlenecks in mobile cellular networks. In this paper, we provide an analytical framework for the performance evaluation of the interaction of multiple operators who cooperate and apply an opportunistic spectrum renting scheme. Based on our investigation, we provide a flexible and simple cooperation scheme when more than two operators are involved.