Performance evaluation of UWB systems in the presence of timing jitter

Guvenc I., ARSLAN H.

2003 IEEE Conference on Ultra Wideband Systems and Technologies, UWBST 2003, Reston, VA, Amerika Birleşik Devletleri, 16 - 19 Kasım 2003, ss.136-141 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/uwbst.2003.1267818
  • Basıldığı Şehir: Reston, VA
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.136-141
  • Anahtar Kelimeler: Impulse radio, multiband UWB, performance analysis, Rake receivers, timing jitter
  • İstanbul Medipol Üniversitesi Adresli: Evet

Özet

In this paper, performances of different ultrawideband (UWB) modulation schemes in the presence of timing jitter are evaluated and compared. Static and Rayleigh fading channels are considered. For fading channels, flat and dispersive channels are assumed. First, bit error rate (BER) performances for each case are derived for a fixed value of timing jitter. Later, a uniform distribution of jitter is assumed to evaluate the performance of the system, and the theoretical results are verified by computer simulations. Finger estimation error is treated as timing jitter and an appropriate model is generated. Furthermore, a worst case distribution that provides an upper bound on the system performance is presented and compared with other distributions. Effects of timing jitter on systems employing different pulse shapes are analyzed to show the dependency of UWB performance on pulse shape. Although our analysis assumes uniform timing jitter, our framework can be used to evaluate the BER performance for any given probability distribution function of the jitter. © 2003 IEEE.