Semiblind iterative receiver for coded MIMO-OFDM systems

Kyeong Jin Kim, Theodoros A. Tsiftsis, Robert Schober

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper, a semiblind iterative receiver is proposed for coded multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems. A novel iterative extended soft-recursive least square (IES-RLS) estimator for joint channel and frequency offset estimation is introduced. Extrinsic bit information obtained from the channel decoder and expected symbol decisions obtained from the demodulator are simultaneously exploited by the IES-RLS. The proposed receiver combines the MIMO data demodulator, the proposed channel estimator, and the channel decoder in an iterative manner to yield an improved bit error rate (BER) performance. To arrive at a feasible algorithm, the first-order linearization of the received vector signal with respect to the frequency offset is used in the IES-RLS channel estimator. The BER performance, a constellation-constrained mutual information analysis, and an EXIT chart analysis are used to verify the effectiveness of the proposed receiver. Simulation results show the superiority of the proposed semiblind receiver, compared with conventional semiblind receivers.

Original languageEnglish
Article number5783949
Pages (from-to)3156-3168
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Volume60
Issue number7
DOIs
Publication statusPublished - Sep 2011
Externally publishedYes

Fingerprint

Demodulators
Orthogonal Frequency Division multiplexing (OFDM)
Multiple-input multiple-output (MIMO)
Bit error rate
Orthogonal frequency division multiplexing
Receiver
Information analysis
Frequency Offset
MIMO systems
Linearization
Error Rate
Least Squares
EXIT Chart
Estimator
Least Squares Estimator
Mutual Information
Verify
First-order
Simulation

Keywords

  • EXIT chart analysis
  • frequency offset and channel estimation
  • iterative demodulator
  • low-density parity-check (LDPC) codes
  • multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system
  • mutual information
  • spherical-radial transform (SRT)

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Aerospace Engineering
  • Automotive Engineering
  • Computer Networks and Communications
  • Applied Mathematics

Cite this

Semiblind iterative receiver for coded MIMO-OFDM systems. / Kim, Kyeong Jin; Tsiftsis, Theodoros A.; Schober, Robert.

In: IEEE Transactions on Vehicular Technology, Vol. 60, No. 7, 5783949, 09.2011, p. 3156-3168.

Research output: Contribution to journalArticle

Kim, Kyeong Jin ; Tsiftsis, Theodoros A. ; Schober, Robert. / Semiblind iterative receiver for coded MIMO-OFDM systems. In: IEEE Transactions on Vehicular Technology. 2011 ; Vol. 60, No. 7. pp. 3156-3168.
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