An overview of MIMO communications - a key to gigabit wireless

High data rate wireless communications, nearing 1 Gb/s transmission rates, is of interest in emerging wireless local area networks and home audio/visual networks. Designing very high speed wireless links that offer good quality-of-service and range capability in non-line-of-sight (NLOS) environments...

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Bibliographic Details
Published in:Proceedings of the IEEE 2004-02, Vol.92 (2), p.198-218
Main Authors: PAULRAJ, A.J., GORE, D.A., NABAR, R.U., BOLCSKEI, H.
Format: Article
Language:English
Subjects:
Antenna measurements
Antennas
Applied sciences
Bit rate
Channels
Coding
Costs
Design engineering
Exact sciences and technology
Fading
Links
MIMO
Networks
Quality of service
Receiving antennas
Spectra
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Wireless communication
Wireless communications
Wireless LAN
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Summary:High data rate wireless communications, nearing 1 Gb/s transmission rates, is of interest in emerging wireless local area networks and home audio/visual networks. Designing very high speed wireless links that offer good quality-of-service and range capability in non-line-of-sight (NLOS) environments constitutes a significant research and engineering challenge. Ignoring fading in NLOS environments, we can, in principle, meet the 1 Gb/s data rate requirement with a single-transmit single-receive antenna wireless system if the product of bandwidth (measured in hertz) and spectral efficiency (measured in bits per second per hertz) is equal to 10/sup 9/. A variety of cost, technology and regulatory constraints make such a brute force solution unattractive, if not impossible. The use of multiple antennas at transmitter and receiver, popularly known as multiple-input multiple-output (MIMO) wireless, is an emerging cost-effective technology that offers substantial leverages in making 1 Gb/s wireless links a reality. The paper provides an overview of MIMO wireless technology covering channel models, performance limits, coding, and transceiver design.
ISSN:0018-9219
1558-2256
DOI:10.1109/JPROC.2003.821915