Research Article
Evolution of spectrum-agile cognitive radios: first wireless internet standard and beyond
@INPROCEEDINGS{10.1145/1234161.1234188, author={Kiran Challapali and Carlos Cordeiro and Dagnachew Birru}, title={Evolution of spectrum-agile cognitive radios: first wireless internet standard and beyond}, proceedings={2nd International ICST Conference on Wireless Internet}, publisher={ACM}, proceedings_a={WICON}, year={2006}, month={8}, keywords={Spectrum agile radios cognitive radios dynamic spectrum access multi-channel access.}, doi={10.1145/1234161.1234188} }- Kiran Challapali
Carlos Cordeiro
Dagnachew Birru
Year: 2006
Evolution of spectrum-agile cognitive radios: first wireless internet standard and beyond
WICON
ACM
DOI: 10.1145/1234161.1234188
Abstract
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.
