Title :
Performance analysis of a DS-UWB system in the presence of narrowband interference
Author :
Ye, Z.Z. ; Madhukumar, A.S. ; Peng, Xiaoming ; Chin, Francois
Author_Institution :
Inst. of Infocomm Res., Singapore
Abstract :
Ultra-wideband (UWB) systems spread the transmitted signal power over an extremely large frequency band, and the power spectral density of the signal is very low. Due to the wide bandwidth of the transmitted signal, UWB signal energy spreads over the frequency bands allocated to other radio systems. Evaluating the interference issues of these narrowband systems to UWB systems in its overlay band is an important issue for understanding and designing efficient UWB systems. An analysis of the power spectral density (PSD) of generic narrowband signals is presented. The theoretical and simulation results reveal that the bit-error-rate (BER) performance of a direct sequence UWB (DS-UWB) system with a minimum mean square error (MMSE) receiver is robust in the presence of narrowband interference caused by existing applications.
Keywords :
error statistics; indoor radio; least mean squares methods; radio receivers; radiofrequency interference; spectral analysis; spread spectrum communication; ultra wideband communication; BER; DS-UWB system; MMSE receiver; bit-error-rate; direct sequence UWB system; generic narrowband signals; indoor communication; minimum mean square error receiver; narrowband interference; power spectral density analysis; Bandwidth; Bit error rate; Frequency; Interference; Narrowband; Performance analysis; RF signals; Radio spectrum management; Signal analysis; Ultra wideband technology;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1391390
