Title :
Feature Detector for DVB-T Signal in Multipath Fading Channel
Author :
Goh, Loo Peng ; Lei, Zhongding ; Chin, Francois
Author_Institution :
Wireless Communications, Institute for Infocomm Research, 21 Heng Mui Keng Terrace, Singapore 119613, Email: lpgoh@i2r.a-star.edu.sg
Abstract :
In this paper, detection of digital TV signals is studied since there is strong motivation to better utilize the idle TV channels to improve spectral efficiency, as seen in the efforts of IEEE 802.22 Wireless Regional Area Networks (WRAN) international standard activities. Cyclostationary feature of DVB signals is explored so that the robust single-cycle detector (SCD) can be employed to handle the problem of noise uncertainty, to which the widely used energy detector (ED) is susceptible. Due to complexity concerns for real-time implementation, a blind twin peak (BTP) detector is proposed to approximate the performance of SCD while keep the complexity as low as ED.
Keywords :
Chromium; Computer vision; Detectors; Digital TV; Digital video broadcasting; FCC; Fading; Noise robustness; Signal detection; Wireless communication; cognitive radio; cyclostationary; energy detector; multi-path effect; noise uncertainty; spectrum utilization;
Conference_Titel :
Cognitive Radio Oriented Wireless Networks and Communications, 2007. CrownCom 2007. 2nd International Conference on
Conference_Location :
Orlando, FL, USA
Print_ISBN :
978-1-4244-0814-6
Electronic_ISBN :
978-1-4244-0815-3
DOI :
10.1109/CROWNCOM.2007.4549802