IEEE 802.22: the first cognitive radio wireless regional area network standard
IEEE Communications Magazine
Channel allocation in peer to peer IEEE 802.22 networks
Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management
Design of handover scheme for IEEE 802.22 WRAN
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
A fairness model for resource allocation in wireless networks
IFIP'12 Proceedings of the 2012 international conference on Networking
| Hi-index | 0.25 |
Channel management policy is one of the key functions of any cognitive radio system. The channel management decision in a cognitive radio system depends on various factors such as government regulations, limitations of transmission power between communicating devices, availability of geo-location information, and the quality of various available channels. The main purpose of channel management in a cognitive radio system is to protect the incumbent users (licensed users). The first international standard based on cognitive radio technology is IEEE 802.22, Wireless Regional Area Networks, which aims at providing broadband access in rural areas by effectively utilizing the unused TV channels. This standard aims at describing both PHY and MAC layer functionalities in an infrastructure-based broadband wireless access network for communication between consumer premises equipment using a base station. This article presents the cognitive radio functionality of this standard in detail. The cognitive functionality is provided by the dynamic channel management using channel sensing, channel classification, and maintenance of channel information. Using these techniques, this standard effectively protects the incumbent users and dynamically manages the channel allocation in IEEE 802.22 WRAN systems.