Research Article
A Novel Active Spectrum Sensing Scheme for Cognitive MB-OFDM UWB Radio
@INPROCEEDINGS{10.1109/CROWNCOM.2008.4562529, author={Qi Liu and Luyong Zhang and Zheng Zhou and Yabin Ye}, title={A Novel Active Spectrum Sensing Scheme for Cognitive MB-OFDM UWB Radio}, proceedings={3rd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2008}, month={7}, keywords={Cognitive MB-OFDM UWB Radio (CUWB); active spectrum sensing; beacon signals; acknowledgement signals}, doi={10.1109/CROWNCOM.2008.4562529} }- Qi Liu
Luyong Zhang
Zheng Zhou
Yabin Ye
Year: 2008
A Novel Active Spectrum Sensing Scheme for Cognitive MB-OFDM UWB Radio
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2008.4562529
Abstract
Spectrum awareness is the key technique for Cognitive Radio (CR). A special spectrum sensing scheme is necessary for Cognitive UWB radio (CUWB) because of its lower radio power and ultra wide bandwidth. Although CUWB transmitter and receiver could respectively detect the spectrum holes, they couldn’t communicate with each other probably if they are out of the communication range or there isn’t common usable spectrum segment for them. No sensing technique deals with these problems properly. In this paper a novel active spectrum sensing scheme for cognitive MB-OFDM UWB radio is presented to settle the above problems. The scheme takes full advantage of UWB and finds usable channels directly for CUWB transmitter and receiver through sending beacon signals and acknowledgement signals. This active spectrum sensing scheme is totally different from existing sensing methods and has its own advantages.
