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Pilot Assisted Channel Estimation for OFDM in Mobile Cellular Systems

Tufvesson, Fredrik LU and Maseng, Torleiv LU (1997) IEEE Vehicular Technology Conference, 1997 In Proceedings of IEEE Vehicular Technology Conference, Phoenix, U.S.A p.1639-1643
Abstract
The use of pilot symbols for channel estimation introduces overhead and it is thus desirable to keep the number of pilot symbols to a minimum. The number of needed pilot symbols for a desired bit error rate and Doppler frequency is highly dependent on the pilot pattern used in orthogonal frequency division multiplexed, OFDM, systems. Five different pilot patterns are analysed by means of resulting bit error rate, which is derived from channel statistics. Rearrangement of the pilot pattern enables a reduction in the number of needed pilot symbols up to a factor 10, still retaining the same performance. The analysis is general and can be used for performance analysis and design of pilot patterns for any OFDM system
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Doppler effect, cellular radio, coding errors, error statistics, frequency division multiplexing, multipath channels, parameter estimation, quadrature phase shift keying
in
Proceedings of IEEE Vehicular Technology Conference, Phoenix, U.S.A
pages
1639 - 1643
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE Vehicular Technology Conference, 1997
external identifiers
  • Scopus:0030698907
ISBN
0-7803-3659-3
DOI
10.1109/VETEC.1997.605836
language
English
LU publication?
yes
id
af8517e8-73c6-4057-8f6a-22c9c5660c29 (old id 1033012)
date added to LUP
2008-02-21 09:24:12
date last changed
2016-04-16 09:42:52
@misc{af8517e8-73c6-4057-8f6a-22c9c5660c29,
  abstract     = {The use of pilot symbols for channel estimation introduces overhead and it is thus desirable to keep the number of pilot symbols to a minimum. The number of needed pilot symbols for a desired bit error rate and Doppler frequency is highly dependent on the pilot pattern used in orthogonal frequency division multiplexed, OFDM, systems. Five different pilot patterns are analysed by means of resulting bit error rate, which is derived from channel statistics. Rearrangement of the pilot pattern enables a reduction in the number of needed pilot symbols up to a factor 10, still retaining the same performance. The analysis is general and can be used for performance analysis and design of pilot patterns for any OFDM system},
  author       = {Tufvesson, Fredrik and Maseng, Torleiv},
  isbn         = {0-7803-3659-3},
  keyword      = {Doppler effect,cellular radio,coding errors,error statistics,frequency division multiplexing,multipath channels,parameter estimation,quadrature phase shift keying},
  language     = {eng},
  pages        = {1639--1643},
  publisher    = {ARRAY(0x8574eb8)},
  series       = {Proceedings of IEEE Vehicular Technology Conference, Phoenix, U.S.A},
  title        = {Pilot Assisted Channel Estimation for OFDM in Mobile Cellular Systems},
  url          = {http://dx.doi.org/10.1109/VETEC.1997.605836},
  year         = {1997},
}