Multi-operator cognitive radios sharing one channel

摘要: Cognitive Radio (CR) coexistence with the primary user has emerged as one of main tasks for success spectrum multi-users auction proposals. Known architectures that arrange spectrums sharing different users are coordinated, distributed, and hybrid. This paper proposes a framework to solve problem access between multi-cognitive radios using only channel in emergencies. A solutions probable network managements were analyzed two CR's trying hardly coexist along same channel. As result new paradigm Dynamic Spectrum Access (DSA) is introduced based on adding together suitable management entities known principles time frequency opportunities. New protocols novel co-operative modifications technologies suggested. Our argument best appliance anticipated scenario can be achieved hybrid which bridges coordinated distributed schedules all other events changes.