Blind joint channel and data estimation for OFDM signals in Rayleigh fading

M. X. Chang, Y. T. Su

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

In this paper, we present several blind model-based joint channel and data estimation methods for Orthogonal Frequency Division Multiplexing (OFDM) signals. We model the time-varying channel response as a polynomial in time. Joint channel estimation and data detection are accomplished by finding the data sequence and regression coefficients that results in the minimum metric between the data-dependent polynomial and the received samples. Our method does not require the information of the channel statistics like signal-to-noise ratio (SNR) or correlation function. Performing exhaustive search among candidate sequences, though optimal, is impractical for long sequences. We develop some suboptimal methods and discuss their pro and con. A two-stage hybrid detection algorithm is proposed and used for detecting differential phase shift keying (DPSK) signals in Rayleigh fading.

Original languageEnglish
Pages (from-to)791-795
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume2
Issue number53ND
Publication statusPublished - 2001 Jan 1
EventIEEE VTS 53rd Vehicular Technology Conference (VTS SPRING 2001) - Rhodes, Greece
Duration: 2001 May 62001 May 9

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Rayleigh Fading
Rayleigh fading
Orthogonal Frequency Division multiplexing (OFDM)
Orthogonal frequency division multiplexing
Polynomials
Phase shift keying
Channel estimation
Differential Phase-shift Keying (DPSK)
Time-varying Channels
Signal to noise ratio
Polynomial
Exhaustive Search
Dependent Data
Channel Estimation
Statistics
Regression Coefficient
Correlation Function
Model-based
Metric
Model

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

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Blind joint channel and data estimation for OFDM signals in Rayleigh fading. / Chang, M. X.; Su, Y. T.

In: IEEE Vehicular Technology Conference, Vol. 2, No. 53ND, 01.01.2001, p. 791-795.

Research output: Contribution to journalConference article

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