Performance Analysis of Communications & Radar Coexistence in a Covert UWB OSA System

Author

Surender, Shrawan C. ; Narayanan, Ram M. ; Das, Chita R.

Author_Institution

Dept. of Comput. Sci. & Eng., Pennsylvania State Univ., University Park, PA, USA

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

1

Lastpage

5

Abstract

Far-field target detection, multi-sensor communications, and security are essential requirements of first-emergency networks. A radar-communications system is a potential opportunistic spectrum access (OSA) solution, harnessing the coexisting advantages of radio detection and ranging (RADAR), and wireless communications. A multi-functional waveform has been designed, by embedding an Orthogonal Frequency Division Multiplexing (OFDM) signal within a spectrally notched ultra-wideband (UWB) random noise waveform. Extending that development, this paper analyzes the waveform´s Bit-Error-Rate (BER) and Ambiguity Function (AF) formulations to demonstrate its OSA ability, that offers reliable multi-user communications, and high range and Doppler resolution in target detection. We further conclude that up to 30% of the available UWB bandwidth can be simultaneously utilized for concealed data communications without adversely affecting radar performance or its physical layer covertness.

Keywords

Doppler radar; OFDM modulation; error statistics; object detection; radar resolution; radar tracking; sensor fusion; ultra wideband radar; Doppler resolution; UWB OSA system; UWB bandwidth; ambiguity function formulation; bit error rate; far field target detection; first emergency network; multisensor communication; multiuser communication; opportunistic spectrum access solution; performance analysis; radar coexistence; radar communication system; radio detection; target detection; ultrawideband random noise waveform; Bandwidth; Doppler radar; Noise; OFDM; Signal resolution; Ultra wideband radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE

Conference_Location

Miami, FL

ISSN

1930-529X

Print_ISBN

978-1-4244-5636-9

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2010.5683837

Filename

5683837