Bandlimited or constant envelope? Exploiting waveform properties in Wireless Microphone detection

Author

Romero, Daniel ; López-Valcarce, Roberto

Author_Institution

Dept. Signal Theor. & Commun., Univ. of Vigo, Vigo, Spain

fYear

2011

fDate

13-16 Dec. 2011

Firstpage

321

Lastpage

324

Abstract

The detection of bandlimited (BL) constant magnitude (CM) signals in white noise of unknown power is analyzed. This is relevant in the context of Dynamic Spectrum Access since Wireless Microphones (WM) typically use analog FM modulation when transmitting in the TV bands, and their bandwidth is much smaller than that of a TV channel. Although detectors exploiting either the BL or the CM properties have been presented in the literature, these two features have not been jointly considered yet. We derive the Generalized Likelihood Ratio test for this setting. Performance is evaluated in the framework for WM simulation developed to assist the IEEE 802.22 Working Group.

Keywords

IEEE standards; bandwidth allocation; frequency modulation; microphones; signal detection; IEEE 802.22 working group; TV bands; TV channel; WM simulation; analog FM modulation; bandlimited constant magnitude signal detection; constant envelope; dynamic spectrum access; generalized likelihood ratio test; unknown power; waveform properties; white noise; wireless microphone detection; wireless microphones; Bandwidth; Detectors; Frequency modulation; TV; Vectors; Wireless communication; Wireless sensor networks; Bandlimited signals; Constant Magnitude; Dynamic Spectrum Access; Wireless Microphones;

fLanguage

English

Publisher

ieee

Conference_Titel

Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP), 2011 4th IEEE International Workshop on

Conference_Location

San Juan

Print_ISBN

978-1-4577-2104-5

Type

conf

DOI

10.1109/CAMSAP.2011.6136015

Filename

6136015