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

Research output: Contribution to journalArticle

Original languageEnglish
Pages2036 - 2040
JournalIEEE 56th Vehicular Technology Conference, VTC Fall-2002)
Journal publication dateSep 2002
Volume4
DOIs
StatePublished

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.

Additional information

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. Terms of use: Copyright © 2002 IEEE. Reprinted from Proceedings of IEEE 56th Vehicular Technology Conference, 2002. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it. Contributor (Other): Institute of Electrical and Electronics Engineers (IEEE)

Research areas

  • channel estimation, OFDM, fourth generation

Event

56th Vehicular Technology Conference 2002 (VTC 2002-Fall)

Duration1 Sep 2002 → …
CountryCanada
CityVancouver

Event: Conference

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