Joint data detection and channel estimation for uplink MC-CDMA systems over frequency selective channels

PANAYIRCI E., Dogan H., Çırpan H. A., Fleury B. H.

6th International Workshop on Multi-Carrier Spread Spectrum (MC-SS 2007), Herrsching, Almanya, 01 Mayıs 2007, cilt.1, ss.397-398 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Doi Numarası: 10.1109/siu.2007.4298802
  • Basıldığı Şehir: Herrsching
  • Basıldığı Ülke: Almanya
  • Sayfa Sayıları: ss.397-398
  • İstanbul Üniversitesi Adresli: Evet

Özet

This paper is concerned with joint channel estimation and data detection for uplink multicarrier code-division multiple-access (MC-CDMA) systems ill the presence of frequency fading channel. The detection and estimation, implemented at the receiver, are based on a version of the expectation maximization (EM) algorithm which is very suitable for the the multicarrier signal formats. Application of the EM-based algorithm to the problem of iterative data detection and channel estimation leads to a receiver structure that also incorporates a partial interference cancelation. Computer simulations show that the proposed algorithm has excellent BER end estimation performance.