Broadband MIMO-OFDM wireless communications
Stuber, G.L.
Barry, J.R.
McLaughlin, S.W.
Ye Li
Ingram, M.A.
Pratt, T.G.
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA;
This paper appears in: Proceedings of the IEEE
Publication Date: Feb 2004
Volume: 92,
Issue: 2
On page(s): 271- 294
ISSN: 0018-9219
INSPEC Accession Number: 8006189
Digital Object Identifier: 10.1109/JPROC.2003.821912
Current Version Published: 2004-11-08
Abstract
Orthogonal frequency division multiplexing (OFDM) is a popular method for high data rate wireless transmission. OFDM may be combined with antenna arrays at the transmitter and receiver to increase the diversity gain and/or to enhance the system capacity on time-varying and frequency-selective channels, resulting in a multiple-input multiple-output (MIMO) configuration. The paper explores various physical layer research challenges in MIMO-OFDM system design, including physical channel measurements and modeling, analog beam forming techniques using adaptive antenna arrays, space-time techniques for MIMO-OFDM, error control coding techniques, OFDM preamble and packet design, and signal processing algorithms used to perform time and frequency synchronization, channel estimation, and channel tracking in MIMO-OFDM systems. Finally, the paper considers a software radio implementation of MIMO-OFDM.
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