Cognitive PHY and MAC layers for dynamic spectrum access and sharing of TV bands
TAPAS '06 Proceedings of the first international workshop on Technology and policy for accessing spectrum
Vector processing as an enabler for software-defined radio in handheld devices
EURASIP Journal on Applied Signal Processing
Cognitive PHY and MAC layers for dynamic spectrum access and sharing of TV bands
TAPAS '06 Proceedings of the first international workshop on Technology and policy for accessing spectrum
A survey on MAC protocols for cognitive radio networks
Ad Hoc Networks
Traffic-aware dynamic spectrum access
Proceedings of the 4th Annual International Conference on Wireless Internet
A MAC protocol for cognitive radio wireless ad hoc networks
MACOM'11 Proceedings of the 4th international conference on Multiple access communications
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Spectrum agile radios, also known as cognitive radios, have received much attention from researchers recently. Although the promise of cognitive radios in terms of increased access to spectrum was widely recognized very early, specific applications that utilize cognitive radio techniques have only recently began to develop. In this paper we briefly describe the first wireless Internet standard that is based on Cognitive Radio techniques, namely IEEE 802.22, and discuss its performance with respect to one aspect of cognitive radios, namely operation over multiple frequency channels. Furthermore, we discuss the evolution of cognitive radios beyond IEEE 802.22 by identifying some of the key factors that affect it, which in turn guide our research in cognitive radio PHY and MAC design.