Performance evaluation of channel estimation techniques for a mobile fourth generation wide area OFDM system

ASH Dowler, A Doufexi, AR Nix

Research output: Contribution to journalArticle (Academic Journal)peer-review

53 Citations (Scopus)
505 Downloads (Pure)

Abstract

In this paper channel estimation techniques for a mobile fourth generation coherent orthogonal frequency division multiplexing (OFDM) system are proposed. Coherent detection dictates that a per-subband estimate of the frequency response of the channel is generated for each OFDM symbol. This is achieved by inserting pilot symbols amongst the data symbols in the OFDM modulation grid. With suitable interpolation, the channel estimate at all intermediate symbols can be generated. A number of channel estimation methods with different pilot patterns and interpolation methods are examined for a range of UTRA specified channel environments. Each environment is shown to have an optimal pilot scheme, power level, pattern and density and the paper proposes the use of adaptive pilot processing.
Translated title of the contributionPerformance evaluation of channel estimation techniques for a mobile fourth generation wide area OFDM system
Original languageEnglish
Pages (from-to)2036 - 2040
JournalIEEE 56th Vehicular Technology Conference, 2002 (VTC 2002-Fall)
Volume4
DOIs
Publication statusPublished - Sep 2002
Event56th Vehicular Technology Conference 2002 (VTC 2002-Fall) - Vancouver, Canada
Duration: 1 Sep 2002 → …

Bibliographical note

Name and Venue of Conference: IEEE 56th Vehicular Technology Conference, VTC Fall-2002)
Rose publication type: Conference contribution

Sponsorship: Alex Dowler acknowledges the financial
support of the Engineering and Physical Sciences Research Council (EPSRC) and Toshiba Research Europe Ltd. Angela
Doufexi acknowledges the support of the IST
SATURN and ROMANTIK projects.

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Contributor (Other): Institute of Electrical and Electronics Engineers (IEEE)

Keywords

  • channel estimation
  • OFDM
  • fourth generation

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