BER performance analysis of MC-CDMA with overlap-FDE

Hiromichi Tomeba, Kazuaki Takeda, Fumiyuki Adachi

Research output: Contribution to journalArticlepeer-review

10 Citations (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 communication systems. Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can take advantage of the channel frequencyselectivity and improve the average bit error rate (BER) performance due to frequency-diversity gain. The conventional FDE requires the insertion of the guard interval (GI) to avoid the inter-block interference (IBI), resulting in the transmission efficiency loss. In this paper, an overlap FDE technique, which requires no GI insertion, is presented for MC-CDMA transmission. An expression for the conditional BER is derived for the given set of channel gains. The average BER performance in a frequency-selective Rayleigh fading channel is evaluated by Monte-Carlo numerical computation method using the derived conditional BER and is confirmed by computer simulation of the signal transmission.

Original languageEnglish
Pages (from-to)795-804
Number of pages10
JournalIEICE Transactions on Communications
VolumeE91-B
Issue number3
DOIs
Publication statusPublished - 2008

Keywords

  • Frequency-selective fading channel
  • MC-CDMA
  • Overlap FDE

ASJC Scopus subject areas

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

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