Blind equalization of quadrature partial response-trellis coded modulated signals in Rician fading

Cirpan H., Ucan O.

INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS, cilt.19, sa.2, ss.159-168, 2001 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 2
  • Basım Tarihi: 2001
  • Doi Numarası: 10.1002/sat.678
  • Dergi Adı: INTERNATIONAL JOURNAL OF SATELLITE COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.159-168
  • İstanbul Üniversitesi Adresli: Hayır

Özet

In this paper, a blind maximum-likelihood channel estimation algorithm is developed for quadrature partial response-trellis coded modulated (QPR-TCM) signals propagating through a Rician fading environment. A hidden Markov model (HMM) formulation of the problem is introduced and the Baum-Welch parameter estimation algorithm is modified to provide a computationally efficient solution to the resulting optimization problem. Performance analysis of the proposed method is carried out through the evaluation of bit-error probability upper bound for Rician fading channels. Also, some illustrative simulations are presented. Copyright (C) 2001 John Wiley & Sons, Ltd.