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Block diagonal GMD for zero-padded MIMO frequency selective channels with zero-forcing DFE

Weng, Ching-Chih and Vaidyanathan, P. P. (2010) Block diagonal GMD for zero-padded MIMO frequency selective channels with zero-forcing DFE. In: 2010 IEEE International Conference on Acoustics, Speech and Signal Processing. IEEE , Piscataway, NJ, pp. 3202-3205. ISBN 978-1-4244-4295-9. http://resolver.caltech.edu/CaltechAUTHORS:20170309-143905742

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Abstract

In the class of systems with linear precoder and zero-forcing (ZF) DFE for zero-padded MIMO frequency selective channels, existing optimal transceiver designs present two major drawbacks. First, the optimal system requires a large number of bits to encode the full precoding matrix. Second, the full precoding matrix leads to complex computations. These disadvantages become more severe as bandwidth (BW) efficiency increases. In this article, we propose using the block diagonal geometric mean decomposition (BD-GMD) technique to design an alternative transceiver. The proposed ZF-BD-GMD system uses a block diagonal orthogonal precoder matrix structure to reduce the required number of encoding bits and simplifies the computation. While solving the current optimal system's drawbacks, the ZF-BD-GMD system also produces a similar bit error rate (BER) performance when the block size is large. In other words, the ZF-BD-GMD system is asymptotically optimal in the class of communication systems with linear precoder and ZF-DFE receiver.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1109/ICASSP.2010.5496060DOIArticle
http://ieeexplore.ieee.org/document/5496060/PublisherArticle
Additional Information:© 2010 IEEE. This work is supported in parts by the ONR grant N00014-08-1-0709, and California Institute of Technology.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-08-1-0709
CaltechUNSPECIFIED
Subject Keywords:Decision Feed Back, Szego’s Theorem, Geometric Mean Decomposition, Block Diagonal Matrix, Block Toeplitz Matrix
Record Number:CaltechAUTHORS:20170309-143905742
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20170309-143905742
Official Citation:C. C. Weng and P. P. Vaidyanathan, "Block diagonal GMD for zero-padded mimo frequency selective channels with zero-forcing DFE," 2010 IEEE International Conference on Acoustics, Speech and Signal Processing, Dallas, TX, USA, 2010, pp. 3202-3205. doi: 10.1109/ICASSP.2010.5496060
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74999
Collection:CaltechAUTHORS
Deposited By: Kristin Buxton
Deposited On:09 Mar 2017 22:47
Last Modified:09 Mar 2017 22:47

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