Space-time block-coded OFDMA with linear precoding for multirate services

Anastasios Stamoulis; Zhiqiang Liu; Georgios B. Giannakis

doi:10.1109/78.972488

Space-time block-coded OFDMA with linear precoding for multirate services

Anastasios Stamoulis, Zhiqiang Liu, Georgios B. Giannakis

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

37 Scopus citations

Abstract

Relying on space-time linearly precoded orthogonal frequency-division multiple access (OFDMA) and exploiting both transmit and receive antenna diversity, we design herein multirate transceivers that guarantee deterministic symbol recovery with diversity gains regardless of the (possibly unknown) frequency-selective finite impulse response (FIR) channels and multiuser interference. Our approach is based on a three-level design of user codes: the top level (based on OFDMA) handles multiuser interference, the middle level (based on space-time block coding) results in space-time diversity gains, and the lower level (based on linear precoding) mitigates intersymbol interference (ISI). In a multiuser/multirate setting, with two transmit and a single receive antenna, our designs achieve guaranteed diversity gains, whereas the use of two receive antennas could potentially double the capacity of the system (in terms of maximum number of users or achievable transmission rates) under favorable conditions (such as no frequency offset). Simulations illustrate the merits of our approach.

Original language	English (US)
Pages (from-to)	119-129
Number of pages	11
Journal	IEEE Transactions on Signal Processing
Volume	50
Issue number	1
DOIs	https://doi.org/10.1109/78.972488
State	Published - Jan 2002

Bibliographical note

Funding Information:
Manuscript received August 24, 2000; revised October 1, 2001. This work was supported by the National Science Foundation under Wireless Initiative Grant 99-79443. The associate editor coordinating the review of this paper and approving it for publication was Dr. Vikram Krishnamurthy. A. Stamoulis is with the AT&T Shannon Laboratory, Florham Park, NJ 07932 USA. Z. Liu is with the Department of Electrical and Computer Engineering, University of Iowa, Iowa City IA 52242 USA. G. B. Giannakis is with the Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN 55455 USA (e-mail: geor-gios@ece.umn.edu). Publisher Item Identifier S 1053-587X(02)00416-6.

Keywords

Diversity
Linear precoding
OFDM
Space-time coding

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abstract = "Relying on space-time linearly precoded orthogonal frequency-division multiple access (OFDMA) and exploiting both transmit and receive antenna diversity, we design herein multirate transceivers that guarantee deterministic symbol recovery with diversity gains regardless of the (possibly unknown) frequency-selective finite impulse response (FIR) channels and multiuser interference. Our approach is based on a three-level design of user codes: the top level (based on OFDMA) handles multiuser interference, the middle level (based on space-time block coding) results in space-time diversity gains, and the lower level (based on linear precoding) mitigates intersymbol interference (ISI). In a multiuser/multirate setting, with two transmit and a single receive antenna, our designs achieve guaranteed diversity gains, whereas the use of two receive antennas could potentially double the capacity of the system (in terms of maximum number of users or achievable transmission rates) under favorable conditions (such as no frequency offset). Simulations illustrate the merits of our approach.",

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Space-time block-coded OFDMA with linear precoding for multirate services

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Keywords

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