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Multi-Antenna Techniques for Evolved 3G Wireless Communication Networks: An Overview

Author(s): Michael Mao Wang | Andy Wang | Alexei Gorokhov | Tamer Kadous | Min Dong

Journal: Journal of Communications
ISSN 1796-2021

Volume: 4;
Issue: 1;
Start page: 61;
Date: 2009;
Original page

Keywords: OFDMA | Multi-antenna transmission | MIMO | spatial multiplexing | rank predication | SDMA | precoding | MMSE receiver | MMSE-SIC receiver | Ultra Mobile Broadband (UMB)

Multi-antenna techniques offers significant capacity benefits. But realizing these gains in practical wireless systems remains a very challenging problem. MIMO-OFDM has been used in wireless LAN systems with great success. However, due to the largely varying spatial profiles and velocity patterns of the access terminals, integrating MIMO techniques in a wireless WAN system has been a difficult design problem. This paper overviews the multi-antenna techniques used in evolved 3G wireless communications systems, such as 3GPP2 Ultra-Mobile Broadband (UMB), IEEE Mobile Broadband Wireless Access (MBWA) and 3GPP LTE, which are poised to become the successor of 3G systems, e.g., 3GPP2 1xEVDO and WCDMA, as the next generation of high speed wireless system. This paper uses MIMO in various forms to suit the deployment scenario. Although we use UMB as a design paradigm in this paper, most of the results apply to OFDM systems in general.
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Tango Jona
Tangokurs Rapperswil-Jona