Blind channel estimation for space-time coding systems with Baum-Welch algorithm

Cirpan H., Panayirci E.

IEEE International Conference on Communications, New-York, Amerika Birleşik Devletleri, 28 Nisan - 02 Mayıs 2002, ss.1579-1583 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: New-York
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.1579-1583
  • İstanbul Üniversitesi Adresli: Hayır

Özet

In recent years, space-time coding Is proposed to provide significant capacity gains over the traditional communication systems In fading wireless channels. In this paper, we consider the problem of blind estimation of the channel parameters along with space-time coded signals. Our proposed approach exploits the finite alphabet property of the space-time coded signals and is based on the unconditional signal model by treating the information sequence as stochastic I.I.D. sequences. The iterative Baum-Welch algorithm is then adapted to solve resulting unconditional NEL optimization cost function. Finally, some simulation results are presented.