Introduction - If you have any usage issues, please Google them yourself
Hierarchical dynamic spectrum access (DSA) has
received the most attention in recent years as the solution for
better spectrum utilization. In this paper, on the other hand,
we develop a framework for dynamic spectrum leasing (DSL).
Power control in hierarchical DSA networks only involves that of
controlling secondary user transmissions. Thus, in game theoretic
formulations of power control in cognitive DSA networks only
secondary users are considered as players of the game. In
proposed dynamic spectrum leasing, on the other hand, the
primary users are rewarded for allowing secondary users to
operate in their licensed spectrum. Thus, in the proposed DSL
networks the primary users have an incentive to allow secondary
users to access the spectrum whenever possible to the maximum
extent. We develop a game theoretic framework for such dynamic
spectrum leasing in which primary users actively participate in
a non-cooperative game with secondary users by selecting an
interfere