MIMO-OFDM wireless systems: Basics, perspectives, and challenges


Helmut Bölcskei


IEEE Wireless Communications, Vol. 13, Issue 4, pp. 31-37, Aug. 2006, (invited paper).

DOI: 10.1109/MWC.2006.1678163

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Multiple-input multiple-output (MIMO) wireless technology in combination with orthogonal frequency-division multiplexing (MIMO-OFDM) is an attractive air-interface solution for next-generation wireless local area networks (WLANs), wireless metropolitan area networks (WMANs), and fourth-generation mobile cellular wireless systems. This article provides an overview of the basics of MIMO-OFDM technology and focuses on space-frequency signaling, receiver design, multiuser systems, and hardware implementation aspects. We conclude with a discussion of relevant open areas for further research.


MIMO-OFDM, WLAN, WMAN, space-frequency-coding, multiuser MIMO

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