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Precoded FIR and Redundant V-BLAST Systems for Frequency-Selective MIMO Channels

Chen, Chun-yang and Vaidyanathan, P. P. (2007) Precoded FIR and Redundant V-BLAST Systems for Frequency-Selective MIMO Channels. IEEE Transactions on Signal Processing, 55 (7, Par). pp. 3390-3404. ISSN 1053-587X. https://resolver.caltech.edu/CaltechAUTHORS:CHEissstsp07a

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Abstract

The vertical Bell labs layered space-time (V-BLAST) system is a multi-input multioutput (MIMO) system designed to achieve good multiplexing gain. In recent literature, a precoder, which exploits channel information, has been added in the V-BLAST transmitter. This precoder forces each symbol stream to have an identical mean square error (MSE). It can be viewed as an alternative to the bit-loading method. In this paper, this precoded V-BLAST system is extended to the case of frequency-selective MIMO channels. Both the FIR and redundant types of transceivers, which use cyclic-prefixing and zero-padding, are considered. A fast algorithm for computing a cyclic-prefixing-based precoded V-BLAST transceiver is developed. Experiments show that the proposed methods with redundancy have better performance than the SVD-based system with optimal powerloading and bit loading for frequency-selective MIMO channels. The gain comes from the fact that the MSE-equalizing precoder has better bit-error rate performance than the optimal bitloading method.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1109/TSP.2007.894400DOIUNSPECIFIED
ORCID:
AuthorORCID
Vaidyanathan, P. P.0000-0003-3003-7042
Additional Information:© Copyright 2007 IEEE. Reprinted with permission. Manuscript received January 19, 2006; revised October 19, 2006. [Posted online: 2007-06-18] This work was supported in part by the National Science Foundation under Grant CCF-0428326, in part by ONR Grant N00014-06-1-0011, and in part by the California Institute of Technology. The associate editor coordinating the review of this manuscript and approving it for publication was Dr. Martin Haardt.
Subject Keywords:Bit loading, decision feedback equalizer (DFE), frequency-selective multi-input multioutput (MIMO) channels, intersymbol-interference (ISI) MIMO channels, MIMO orthogonal frequency-division multiplexing (OFDM), precoder, vertical Bell labs layered space-time (V-BLAST)
Issue or Number:7, Par
Record Number:CaltechAUTHORS:CHEissstsp07a
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:CHEissstsp07a
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:8517
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:17 Aug 2007
Last Modified:09 Mar 2020 13:19

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