Joint detection and channel estimation for block transmission schemes

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11 Citations (Scopus)

Abstract

SC-FDE (Single-Carrier with Frequency-Domain Equalization) block transmission technique can have excellent performance in severely time-dispersive channels provided that accurate channel estimates are available at the receiver. In this paper we consider joint detection and channel estimation for SC-FDE schemes where a coarse channel estimate is obtained with the help of a training sequence and we employ iterative receivers where for each iteration the data estimates are used to improve the channel estimates. However, since the frequency-domain data blocks can have large envelope fluctuations, a decision-directed channel estimation might have significant noise enhancement effects. To overcome this problem, we combine channel estimates based on the training sequence with decision-directed channel estimates. Our performance results show that these techniques allow good performances without requiring high-power pilots or training blocks.

Original languageEnglish
Title of host publication2010 IEEE Military Communications Conference, MILCOM 2010
Pages1765-1770
Number of pages6
DOIs
Publication statusPublished - 2010
Event2010 IEEE Military Communications Conference, MILCOM 2010 - San Jose, CA, United States
Duration: 31 Oct 20103 Nov 2010

Conference

Conference2010 IEEE Military Communications Conference, MILCOM 2010
CountryUnited States
CitySan Jose, CA
Period31/10/103/11/10

Keywords

  • Channel estimation
  • Frequency-domain receivers
  • Iterative receivers
  • SC-FDE
  • Training sequences

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