Pilot assisted channel estimation for MC-CDMA signal transmission using overlap FDE

Hiromichi Tomeba, Kazuki Takeda, Kazuaki Takeda, Fumiyuki Adachi

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

Recently, multi-carrier code division multiple access (MC-CDMA) has been attracting much attention as a broadband wireless access technique for the next generation mobile communications systems. Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can take advantage of the channel frequency-selectivity and improve the average bit error rate (BER) performance due to frequency-diversity gain. However, conventional MC-CDMA requires the insertion of guard interval (GI) and this reduces the transmission efficiency. Overlap FDE technique has been proposed that requires no GI insertion. Recently, we showed that MC-CDMA using overlap FDE can provide almost the same BER performance as the conventional MC-CDMA downlink using the GI insertion. However, our previous work assumed the ideal channel estimation. In this paper, we propose a pilot assisted channel estimation technique suitable for MC-CDMA downlink using overlap FDE and evaluate the BER performance by computer simulation.

Original languageEnglish
Pages1106-1110
Number of pages5
DOIs
Publication statusPublished - 2008 Dec 1
Event2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008 - Guangzhou, China
Duration: 2008 Nov 192008 Nov 21

Other

Other2008 11th IEEE Singapore International Conference on Communication Systems, ICCS 2008
CountryChina
CityGuangzhou
Period08/11/1908/11/21

Keywords

  • Channel estimation
  • Component
  • Frequency-selective fading channel
  • MC-CDMA
  • Overlap FDE

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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