  In this paper, we present a distributed resource allocation mechanism in
cognitive radio networks, based on a new coopeti-tion methodology, which
combines advantages of nodes competition and cooperation. We postulate that
this new method allows for fully distributed resource management between
cognitive radio devices. The presented framework is generic, however, we
consider it for the application in OFDMA networks. Coopetition takes the best
from cooperative and competitive problem formulation and provides the
opportunity to control the balance between fairness and spectral efficiency
(SE) of resource allocation. Simulation results confirm that coopetition allows
for efficient resource utilization, and may be used practically in wireless
cognitive networks.
