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Comparison of two channel shortening approaches for MIMO-ISI channels

Hu, Sha LU ; Rusek, Fredrik LU and Al-Dhahir, Naofal (2016) IEEE Wireless Communications and Networking Conference In 2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
Abstract

We consider a multiple-input multiple-output (MIMO) channel with inter-symbol interference (ISI) where signal detection is highly complex due to the large signal state-space dimensionality. A common strategy is to apply a front-end filter (FEF) to eliminate the ISI dimension (i.e. full ISI equalization). This FEF is then followed by a frequency non-selective MIMO detector. However, another, much less researched, strategy is to apply an FEF that eliminates the MIMO dimension and results in a set of parallel ISI channels followed by a bank of parallel single-input single-output (SISO) detectors. Which of the two strategies is better in a Shannon capacity sense? In this paper, we show that the answer to this question depends on system... (More)

We consider a multiple-input multiple-output (MIMO) channel with inter-symbol interference (ISI) where signal detection is highly complex due to the large signal state-space dimensionality. A common strategy is to apply a front-end filter (FEF) to eliminate the ISI dimension (i.e. full ISI equalization). This FEF is then followed by a frequency non-selective MIMO detector. However, another, much less researched, strategy is to apply an FEF that eliminates the MIMO dimension and results in a set of parallel ISI channels followed by a bank of parallel single-input single-output (SISO) detectors. Which of the two strategies is better in a Shannon capacity sense? In this paper, we show that the answer to this question depends on system parameters such as SNR, number of antennas, ISI duration, and spatial correlation properties.

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publication status
published
subject
in
2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
publisher
Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE Wireless Communications and Networking Conference
external identifiers
  • scopus:84989919673
ISBN
978-1-4673-9815-2
978-1-4673-9814-5
DOI
10.1109/WCNC.2016.7564884
language
English
LU publication?
yes
id
aad27d72-b2dd-45be-839f-902328cd4cfe
date added to LUP
2016-11-04 11:47:38
date last changed
2017-04-05 12:15:48
@inproceedings{aad27d72-b2dd-45be-839f-902328cd4cfe,
  abstract     = {<p>We consider a multiple-input multiple-output (MIMO) channel with inter-symbol interference (ISI) where signal detection is highly complex due to the large signal state-space dimensionality. A common strategy is to apply a front-end filter (FEF) to eliminate the ISI dimension (i.e. full ISI equalization). This FEF is then followed by a frequency non-selective MIMO detector. However, another, much less researched, strategy is to apply an FEF that eliminates the MIMO dimension and results in a set of parallel ISI channels followed by a bank of parallel single-input single-output (SISO) detectors. Which of the two strategies is better in a Shannon capacity sense? In this paper, we show that the answer to this question depends on system parameters such as SNR, number of antennas, ISI duration, and spatial correlation properties.</p>},
  author       = {Hu, Sha and Rusek, Fredrik and Al-Dhahir, Naofal},
  booktitle    = {2016 IEEE Wireless Communications and Networking Conference, WCNC 2016},
  isbn         = {978-1-4673-9815-2},
  language     = {eng},
  month        = {09},
  publisher    = {Institute of Electrical and Electronics Engineers Inc.},
  title        = {Comparison of two channel shortening approaches for MIMO-ISI channels},
  url          = {http://dx.doi.org/10.1109/WCNC.2016.7564884},
  year         = {2016},
}