IEICE TRANSACTIONS on Communications
Analog Decoding Method for Simplified Short-Range MIMO Transmission
Summary :
A novel analog decoding method using only 90-degree phase shifters is proposed to simplify the decoding method for short-range multiple-input multiple-output (MIMO) transmission. In a short-range MIMO transmission, an optimal element spacing that maximizes the channel capacity exists for a given transmit distance between the transmitter and receiver. We focus on the fact that the weight matrix by zero forcing (ZF) at the optimal element spacing can be obtained by using dividers and 90-degree phase shifters because it can be expressed by a unitary matrix. The channel capacity by the proposed method is next derived for the evaluation of the exact limitation of the channel capacity. Moreover, it is shown that an optimal weight when using directional antennas can be expressed by using only dividers, 90-degree phase shifters, and attenuators, regardless of the beam width of the directional antenna. Finally, bit error rate and channel capacity evaluations by both simulation and measurement confirm the effectiveness of the proposed method.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E97-B No.3 pp.620-630
- Publication Date
- 2014/03/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E97.B.620
- Type of Manuscript
- PAPER
- Category
- Antennas and Propagation
Authors
Ryochi KATAOKA
Niigata University
Kentaro NISHIMORI
Niigata University
Takefumi HIRAGURI
Nippon Institute of Technology
Naoki HONMA
Iwate University
Tomohiro SEKI
NTT Corporation
Ken HIRAGA
NTT Corporation
Hideo MAKINO
Niigata University
Keyword
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Ryochi KATAOKA, Kentaro NISHIMORI, Takefumi HIRAGURI, Naoki HONMA, Tomohiro SEKI, Ken HIRAGA, Hideo MAKINO, "Analog Decoding Method for Simplified Short-Range MIMO Transmission" in IEICE TRANSACTIONS on Communications,
vol. E97-B, no. 3, pp. 620-630, March 2014, doi: 10.1587/transcom.E97.B.620.
Abstract: A novel analog decoding method using only 90-degree phase shifters is proposed to simplify the decoding method for short-range multiple-input multiple-output (MIMO) transmission. In a short-range MIMO transmission, an optimal element spacing that maximizes the channel capacity exists for a given transmit distance between the transmitter and receiver. We focus on the fact that the weight matrix by zero forcing (ZF) at the optimal element spacing can be obtained by using dividers and 90-degree phase shifters because it can be expressed by a unitary matrix. The channel capacity by the proposed method is next derived for the evaluation of the exact limitation of the channel capacity. Moreover, it is shown that an optimal weight when using directional antennas can be expressed by using only dividers, 90-degree phase shifters, and attenuators, regardless of the beam width of the directional antenna. Finally, bit error rate and channel capacity evaluations by both simulation and measurement confirm the effectiveness of the proposed method.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E97.B.620/_p
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@ARTICLE{e97-b_3_620,
author={Ryochi KATAOKA, Kentaro NISHIMORI, Takefumi HIRAGURI, Naoki HONMA, Tomohiro SEKI, Ken HIRAGA, Hideo MAKINO, },
journal={IEICE TRANSACTIONS on Communications},
title={Analog Decoding Method for Simplified Short-Range MIMO Transmission},
year={2014},
volume={E97-B},
number={3},
pages={620-630},
abstract={A novel analog decoding method using only 90-degree phase shifters is proposed to simplify the decoding method for short-range multiple-input multiple-output (MIMO) transmission. In a short-range MIMO transmission, an optimal element spacing that maximizes the channel capacity exists for a given transmit distance between the transmitter and receiver. We focus on the fact that the weight matrix by zero forcing (ZF) at the optimal element spacing can be obtained by using dividers and 90-degree phase shifters because it can be expressed by a unitary matrix. The channel capacity by the proposed method is next derived for the evaluation of the exact limitation of the channel capacity. Moreover, it is shown that an optimal weight when using directional antennas can be expressed by using only dividers, 90-degree phase shifters, and attenuators, regardless of the beam width of the directional antenna. Finally, bit error rate and channel capacity evaluations by both simulation and measurement confirm the effectiveness of the proposed method.},
keywords={},
doi={10.1587/transcom.E97.B.620},
ISSN={1745-1345},
month={March},}
Copy
TY - JOUR
TI - Analog Decoding Method for Simplified Short-Range MIMO Transmission
T2 - IEICE TRANSACTIONS on Communications
SP - 620
EP - 630
AU - Ryochi KATAOKA
AU - Kentaro NISHIMORI
AU - Takefumi HIRAGURI
AU - Naoki HONMA
AU - Tomohiro SEKI
AU - Ken HIRAGA
AU - Hideo MAKINO
PY - 2014
DO - 10.1587/transcom.E97.B.620
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E97-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2014
AB - A novel analog decoding method using only 90-degree phase shifters is proposed to simplify the decoding method for short-range multiple-input multiple-output (MIMO) transmission. In a short-range MIMO transmission, an optimal element spacing that maximizes the channel capacity exists for a given transmit distance between the transmitter and receiver. We focus on the fact that the weight matrix by zero forcing (ZF) at the optimal element spacing can be obtained by using dividers and 90-degree phase shifters because it can be expressed by a unitary matrix. The channel capacity by the proposed method is next derived for the evaluation of the exact limitation of the channel capacity. Moreover, it is shown that an optimal weight when using directional antennas can be expressed by using only dividers, 90-degree phase shifters, and attenuators, regardless of the beam width of the directional antenna. Finally, bit error rate and channel capacity evaluations by both simulation and measurement confirm the effectiveness of the proposed method.
ER -
English
