Space-time bit-interleaved coded modulation for OFDM systems in wireless LAN applications

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

Research output: Contribution to journalConference article

16 Citations (Scopus)

Abstract

Space-Time coding techniques are methods to 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. By using Orthogonal Frequency Division Multiplexing (OFDM), wideband transmission can be achieved over frequency selective fading radio channels. In this paper, we combine these three ideas into a family of flexible space-time coding methods where the modulation order and coding rate as well as the number of transmit and receive antennas can be changed without drastic redesign of the space-time codes. Near optimum iterative decoders are evaluated in terms of simulation for slowly varying wireless LAN type channels. Significant performance gains over the 802.11a standard system are reported.

Original languageEnglish
Pages (from-to)3413-3417
Number of pages5
JournalIEEE International Conference on Communications
Volume5
Publication statusPublished - 2003 Jul 18
Event2003 International Conference on Communications (ICC 2003) - Anchorage, AK, United States
Duration: 2003 May 112003 May 15

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this