A composite LMMSE channel estimator for spectrum-efficient OFDM transmit diversity

Jeong Wook Seo, Won Gi Jeon, Jong Ho Paik, Minho Jo, Dong Ku Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal frequency division multiplexing (OFDM) transmit diversity. The pilot symbols for OFDM transmit (Alamouti) diversity are exclusively allocated in two OFDM symbols in different antennas, which causes serious degradation of spectrum efficiency. To reduce the number of pilot symbols, our subcarrier allocation method uses repetition-coded data symbols, and the proposed channel estimator maintains good bit error rate (BER) performance.

Original languageEnglish
Pages (from-to)209-221
Number of pages13
JournalKSII Transactions on Internet and Information Systems
Volume2
Issue number4
DOIs
Publication statusPublished - 2008 Aug 1

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Mean square error
Orthogonal frequency division multiplexing
Composite materials
Bit error rate
Antennas
Degradation

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications

Cite this

Seo, Jeong Wook ; Jeon, Won Gi ; Paik, Jong Ho ; Jo, Minho ; Kim, Dong Ku. / A composite LMMSE channel estimator for spectrum-efficient OFDM transmit diversity. In: KSII Transactions on Internet and Information Systems. 2008 ; Vol. 2, No. 4. pp. 209-221.
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A composite LMMSE channel estimator for spectrum-efficient OFDM transmit diversity. / Seo, Jeong Wook; Jeon, Won Gi; Paik, Jong Ho; Jo, Minho; Kim, Dong Ku.

In: KSII Transactions on Internet and Information Systems, Vol. 2, No. 4, 01.08.2008, p. 209-221.

Research output: Contribution to journalArticle

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