Date Added: Feb 2010
Dynamic Spectrum Leasing (DSL) was recently proposed as a new way to achieve Dynamic Spectrum Sharing (DSS). Unlike previously considered Dynamic Spectrum Access (DSA) proposals, DSL allows for the spectrum owner, called the primary user, to dynamically adjust the amount of interference it is willing to tolerate from secondary users. In response, the secondary users update their transmit powers to maximize a suitably chosen reward function. In previous work, it has been shown that the best response adaptations will converge to a unique Nash equilibrium under the assumptions of a quasistatic channel conditions and for a fixed number of secondary users.