Performance of Diversity Combining Scheme Using Simplified Weighting Factor
Summary :
Maximal-ratio combining (MRC), which maximizes the carrier to noise ratio (CNR) of the combined signal, generally requires envelope detection and multiplication having linear characteristic over a wide dynamic range to generate a weighting factor for each branch. In this paper, we propose a simplified two-branch diversity combining scheme without linear envelope detection. The proposed scheme, called "level comparison weighted combining (LCWC),"is simplified in a manner that its weighting factor for each branch is generated from hard-decision results of comparing signal envelopes between two branches. Performance of LCWC is evaluated by computer simulation and laboratory experiment, which shows that its diversity gain is almost identical to that of MRC in a Rayleigh fading channel.
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- IEICE TRANSACTIONS on Communications Vol.E80-B No.8 pp.1160-1166
- Publication Date
- 1997/08/25
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- Special Section PAPER (Special Issue on Mobile Computing)
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Hiroyasu SANO, Makoto MIYAKE, Tadashi FUJINO, "Performance of Diversity Combining Scheme Using Simplified Weighting Factor" in IEICE TRANSACTIONS on Communications,
vol. E80-B, no. 8, pp. 1160-1166, August 1997, doi: .
Abstract: Maximal-ratio combining (MRC), which maximizes the carrier to noise ratio (CNR) of the combined signal, generally requires envelope detection and multiplication having linear characteristic over a wide dynamic range to generate a weighting factor for each branch. In this paper, we propose a simplified two-branch diversity combining scheme without linear envelope detection. The proposed scheme, called "level comparison weighted combining (LCWC),"is simplified in a manner that its weighting factor for each branch is generated from hard-decision results of comparing signal envelopes between two branches. Performance of LCWC is evaluated by computer simulation and laboratory experiment, which shows that its diversity gain is almost identical to that of MRC in a Rayleigh fading channel.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e80-b_8_1160/_p
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@ARTICLE{e80-b_8_1160,
author={Hiroyasu SANO, Makoto MIYAKE, Tadashi FUJINO, },
journal={IEICE TRANSACTIONS on Communications},
title={Performance of Diversity Combining Scheme Using Simplified Weighting Factor},
year={1997},
volume={E80-B},
number={8},
pages={1160-1166},
abstract={Maximal-ratio combining (MRC), which maximizes the carrier to noise ratio (CNR) of the combined signal, generally requires envelope detection and multiplication having linear characteristic over a wide dynamic range to generate a weighting factor for each branch. In this paper, we propose a simplified two-branch diversity combining scheme without linear envelope detection. The proposed scheme, called "level comparison weighted combining (LCWC),"is simplified in a manner that its weighting factor for each branch is generated from hard-decision results of comparing signal envelopes between two branches. Performance of LCWC is evaluated by computer simulation and laboratory experiment, which shows that its diversity gain is almost identical to that of MRC in a Rayleigh fading channel.},
keywords={},
doi={},
ISSN={},
month={August},}
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TY - JOUR
TI - Performance of Diversity Combining Scheme Using Simplified Weighting Factor
T2 - IEICE TRANSACTIONS on Communications
SP - 1160
EP - 1166
AU - Hiroyasu SANO
AU - Makoto MIYAKE
AU - Tadashi FUJINO
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E80-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 1997
AB - Maximal-ratio combining (MRC), which maximizes the carrier to noise ratio (CNR) of the combined signal, generally requires envelope detection and multiplication having linear characteristic over a wide dynamic range to generate a weighting factor for each branch. In this paper, we propose a simplified two-branch diversity combining scheme without linear envelope detection. The proposed scheme, called "level comparison weighted combining (LCWC),"is simplified in a manner that its weighting factor for each branch is generated from hard-decision results of comparing signal envelopes between two branches. Performance of LCWC is evaluated by computer simulation and laboratory experiment, which shows that its diversity gain is almost identical to that of MRC in a Rayleigh fading channel.
ER -
English
