Low-Power Dynamic MIMO Detection for a 4×4 MIMO-OFDM Receiver

Nozomi MIYAZAKI; Shingo YOSHIZAWA; Yoshikazu MIYANAGA

doi:10.1587/transfun.E97.A.306

Low-Power Dynamic MIMO Detection for a 4×4 MIMO-OFDM Receiver

Nozomi MIYAZAKI, Shingo YOSHIZAWA, Yoshikazu MIYANAGA

Full Text Views

0

Share
Cite this

Summary :

This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4×4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We propose low-power dynamic MIMO detection that controls detection speed according to wireless environments. The power consumption is reduced by dynamic voltage and frequency scaling (DVFS) that controls the operating voltage and clock frequency in the MIMO detector. We implemented dynamic MIMO detection in a pipelined minimum mean square error (MMSE) MIMO detector that we developed in our previous work. A power saving of 92% was achieved under lowest clock frequency mode conditions.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E97-A No.1 pp.306-312

Publication Date: 2014/01/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E97.A.306

Type of Manuscript: PAPER

Category: Digital Signal Processing

Authors

Nozomi MIYAZAKI
  Hokkaido University
Shingo YOSHIZAWA
  Kitami Institute of Technology
Yoshikazu MIYANAGA
  Hokkaido University

Keyword

wireless communications, MIMO detection, low power, DVFS

Cite this

Copy

Nozomi MIYAZAKI, Shingo YOSHIZAWA, Yoshikazu MIYANAGA, "Low-Power Dynamic MIMO Detection for a 4×4 MIMO-OFDM Receiver" in IEICE TRANSACTIONS on Fundamentals, vol. E97-A, no. 1, pp. 306-312, January 2014, doi: 10.1587/transfun.E97.A.306.
Abstract: This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4×4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We propose low-power dynamic MIMO detection that controls detection speed according to wireless environments. The power consumption is reduced by dynamic voltage and frequency scaling (DVFS) that controls the operating voltage and clock frequency in the MIMO detector. We implemented dynamic MIMO detection in a pipelined minimum mean square error (MMSE) MIMO detector that we developed in our previous work. A power saving of 92% was achieved under lowest clock frequency mode conditions.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E97.A.306/_p

Copy

@ARTICLE{e97-a_1_306,
author={Nozomi MIYAZAKI, Shingo YOSHIZAWA, Yoshikazu MIYANAGA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Low-Power Dynamic MIMO Detection for a 4×4 MIMO-OFDM Receiver},
year={2014},
volume={E97-A},
number={1},
pages={306-312},
abstract={This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4×4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We propose low-power dynamic MIMO detection that controls detection speed according to wireless environments. The power consumption is reduced by dynamic voltage and frequency scaling (DVFS) that controls the operating voltage and clock frequency in the MIMO detector. We implemented dynamic MIMO detection in a pipelined minimum mean square error (MMSE) MIMO detector that we developed in our previous work. A power saving of 92% was achieved under lowest clock frequency mode conditions.},
keywords={},
doi={10.1587/transfun.E97.A.306},
ISSN={1745-1337},
month={January},}

Copy

TY - JOUR
TI - Low-Power Dynamic MIMO Detection for a 4×4 MIMO-OFDM Receiver
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 306
EP - 312
AU - Nozomi MIYAZAKI
AU - Shingo YOSHIZAWA
AU - Yoshikazu MIYANAGA
PY - 2014
DO - 10.1587/transfun.E97.A.306
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E97-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2014
AB - This paper describes low-power dynamic multiple-input and multiple-output (MIMO) detection for a 4×4 MIMO-orthogonal frequency-division multiplexing (MIMO-OFDM) receiver. MIMO-OFDM systems achieve high-speed and large capacity communications. However, they impose high computational cost in MIMO detection when separating spatially multiplexed signals and they consume vast amounts of power. We propose low-power dynamic MIMO detection that controls detection speed according to wireless environments. The power consumption is reduced by dynamic voltage and frequency scaling (DVFS) that controls the operating voltage and clock frequency in the MIMO detector. We implemented dynamic MIMO detection in a pipelined minimum mean square error (MMSE) MIMO detector that we developed in our previous work. A power saving of 92% was achieved under lowest clock frequency mode conditions.
ER -