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Space-frequency block code with matched rotation for MIMO-OFDM system with limited feedback

Zhang, Ming, Abhayapala, Thushara D., Jayalath, Dhammika, Smith, David, & Athaudage, Chandranath R. N. (2009) Space-frequency block code with matched rotation for MIMO-OFDM system with limited feedback. EURASIP Journal on Advances in Signal Processing, 2009.

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Abstract

This paper presents a novel matched rotation precoding (MRP) scheme to design a rate one space-frequency block code (SFBC) and a multirate SFBC for MIMO-OFDM systems with limited feedback. The proposed rate one MRP and multirate MRP can always achieve full transmit diversity and optimal system performance for arbitrary number of antennas, subcarrier intervals, and subcarrier groupings, with limited channel knowledge required by the transmit antennas. The optimization process of the rate one MRP is simple and easily visualized so that the optimal rotation angle can be derived explicitly, or even intuitively for some cases. The multirate MRP has a complex optimization process, but it has a better spectral efficiency and provides a relatively smooth balance between system performance and transmission rate. Simulations show that the proposed SFBC with MRP can overcome the diversity loss for specific propagation scenarios, always improve the system performance, and demonstrate flexible performance with large performance gain. Therefore the proposed SFBCs with MRP demonstrate flexibility and feasibility so that it is more suitable for a practical MIMO-OFDM system with dynamic parameters.

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ID Code: 32951
Item Type: Journal Article
Keywords: MIMO-OFDM, Space-Frequency Block Codes, Matched Rotation
DOI: 10.1155/2009/231587
ISSN: 1687-6172
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > COMMUNICATIONS TECHNOLOGIES (100500) > Wireless Communications (100510)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 the Authors
Copyright Statement: Copyright © 2009 Min Zhang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Deposited On: 28 Jun 2010 07:52
Last Modified: 29 Feb 2012 23:54

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