Space-Time Bit-Interleaved Coded Modulation for OFDM Systems

Inkyu Lee, Albert M. Chan, Carl Erik W. Sundberg

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)


Space-time coding techniques significantly improve transmission efficiency in radio channels by using multiple transmit and/or receive antennas and coordination of the signaling over these antennas. Bit-interleaved coded modulation gives good diversity gains with higher order modulation schemes using well-known binary convolutional codes on a single transmit and receive antenna link. By using orthogonal frequency division multiplexing (OFDM), wideband transmission can be achieved over frequency-selective fading radio channels without adaptive equalizers. In this correspondence, we combine these three ideas into a family of flexible space-time coding methods. The pairwise error probability is analyzed based on the correlated fading assumption. Near-optimum iterative decoders are evaluated by means of simulations for slowly varying wireless channels. Theoretical evaluation of the achievable degree of diversity is also presented. Significant performance gains over the wireless local area network (LAN) 802.1 la standard system are reported.

Original languageEnglish
Pages (from-to)820-825
Number of pages6
JournalIEEE Transactions on Signal Processing
Issue number3
Publication statusPublished - 2004 Mar

Bibliographical note

Funding Information:
Manuscript received February 27, 2003; revised April 22, 2003. This work was supported in part by a Korea University grant, in part by the Korea Science and Engineering Foundation under Grant R08-2003-000-10761-0, and in part by a University IT Research Center Project. This paper was presented in part at International Conference on Communications, May 2003. The associate editor coordinating the review of this paper and approving it for publication was Dr. Rick S. Blum.


  • Iterative decoding
  • OFDM
  • Space-time codes

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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