TY - GEN
T1 - Sensing schemes for DVB-T in cognitive radio context
AU - Chen, Lei
AU - Peng, Qihang
AU - Wang, Jun
AU - Li, Shaoqian
PY - 2007
Y1 - 2007
N2 - The core task of spectrum sensing in Cognitive Radio is to determine vacant spectrum timely and reliably. As the first cognitive radio based standard, IEEE 802.22 Wireless Regional Area Network aims to opportunistically utilize the underutilized VHF/UHF bands, therefore, reliably sensing incumbent signals on these bands arises as a key technique for IEEE 802.22 realization. Unfortunately, no algorithm so far has been discussed for one main incumbent signal, Digital Video Broadcasting-Terrestrial (DVB-T) signal, on VHF/UHF bands. In this paper, several different DVB-T signal sensing schemes are proposed, including both the single and multiple antenna receiving scenarios. All these proposed sensing methods exploit the inherent characteristics of DVB-T signals. The corresponding computational complexities of these sensing schemes are analyzed consequently. Simulations show that our proposed schemes (both for single and multiple antenna situations) can effectively determine the existence or absence of DVB-T signals.
AB - The core task of spectrum sensing in Cognitive Radio is to determine vacant spectrum timely and reliably. As the first cognitive radio based standard, IEEE 802.22 Wireless Regional Area Network aims to opportunistically utilize the underutilized VHF/UHF bands, therefore, reliably sensing incumbent signals on these bands arises as a key technique for IEEE 802.22 realization. Unfortunately, no algorithm so far has been discussed for one main incumbent signal, Digital Video Broadcasting-Terrestrial (DVB-T) signal, on VHF/UHF bands. In this paper, several different DVB-T signal sensing schemes are proposed, including both the single and multiple antenna receiving scenarios. All these proposed sensing methods exploit the inherent characteristics of DVB-T signals. The corresponding computational complexities of these sensing schemes are analyzed consequently. Simulations show that our proposed schemes (both for single and multiple antenna situations) can effectively determine the existence or absence of DVB-T signals.
UR - https://www.scopus.com/pages/publications/84867280666
U2 - 10.1109/ICCCAS.2007.6250850
DO - 10.1109/ICCCAS.2007.6250850
M3 - 会议稿件
AN - SCOPUS:84867280666
SN - 9781424414741
T3 - ICCCAS 2007 - International Conference on Communications, Circuits and Systems 2007
SP - 314
EP - 318
BT - ICCCAS 2007 - International Conference on Communications, Circuits and Systems 2007
PB - IEEE Computer Society
T2 - ICCCAS 2007 - International Conference on Communications, Circuits and Systems 2007
Y2 - 11 July 2007 through 13 July 2007
ER -