Energy detection of DVB-T signals against noise uncertainty

Authors

Ming Jin, Ningbo UniversityFollow
Qinghua Guo, University of WollongongFollow
Jun Tong, University of WollongongFollow
Jiangtao Xi, University of WollongongFollow
Youming Li, Ningbo University

RIS ID

96495

Publication Details

M. Jin, Q. Guo, J. Tong, J. Xi & Y. Li, "Energy detection of DVB-T signals against noise uncertainty," IEEE Communications Letters, vol. 18, (10) pp. 1831-1834, 2014.

Abstract

In this letter, we consider the spectrum sensing of digital video broadcasting-terrestrial (DVB-T) signals with energy detection (ED). ED delivers a superior performance among low computational complexity detectors, but it is vulnerable to noise uncertainty. By exploiting the pilot periodicity in DVB-T signals, we propose a low complexity noise power estimator which works in multipath channels, and does not require time and frequency synchronization. Simulations show that, with the noise power estimator, ED significantly outperforms the pilot correlation-based detection which is often used in DVB-T spectrum sensing.

Grant Number

ARC/DE120101266

Additional Grant Number

http://purl.org/au-research/grants/arc/DE120101266