说明：  经典的频谱共享的EI检索算法，运用动态频谱租用来提高频谱利用率。
(Dynamic Spectrum Leasing (DSL) is a new paradigm for efficient spectrum sharing in cognitive radio networks that was recently proposed in [1]–[3]. Unlike in a hierarchical dynamic spectrum access (DSA) network, DSL allows active participation of both the primary and the secondary users in the spectrum sharing process. In this paper we further generalize the DSL game introduced in [2] by allowing for linear multiuser detectors, in particular the matched filter (MF) and linear minimum mean squared error (LMMSE) receivers, at the secondary base stations. We establish the conditions so that the DSL game has desired equilibrium properties. Performance of the proposed system at the equilibrium is compared through simulations)