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, Germany, 01 May 2007, vol.1, pp.397-398 identifier identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • Doi Number: 10.1109/siu.2007.4298802
  • City: Herrsching
  • Country: Germany
  • Page Numbers: pp.397-398
  • Istanbul University Affiliated: Yes

Abstract

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.