IEICE TRANSACTIONS on Communications
Space-Code Transmit Diversity for OFDM-CDM Systems
Summary :
This paper presents a transmit diversity scheme that uses space-time block codes (STBC) in space-spreading code dimensions for time-direction spreading or two-dimensional spreading orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) downlink transmission. The STBC output symbols in two adjacent time slots are spread by two distinctive spreading codes and multiplexed in the same spreading segment. At a receiver, the received subcarrier signals are despread with the two spreading codes in the direction of time, space-time decoded, and then combined in the direction of frequency. Simulation results demonstrated that the proposed scheme provided high tolerance to Doppler spread and outperformed space-time transmit diversity (STTD) for high-mobility users.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E86-B No.12 pp.3468-3475
- Publication Date
- 2003/12/01
- Publicized
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- Type of Manuscript
- Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
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Masaaki FUJII, "Space-Code Transmit Diversity for OFDM-CDM Systems" in IEICE TRANSACTIONS on Communications,
vol. E86-B, no. 12, pp. 3468-3475, December 2003, doi: .
Abstract: This paper presents a transmit diversity scheme that uses space-time block codes (STBC) in space-spreading code dimensions for time-direction spreading or two-dimensional spreading orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) downlink transmission. The STBC output symbols in two adjacent time slots are spread by two distinctive spreading codes and multiplexed in the same spreading segment. At a receiver, the received subcarrier signals are despread with the two spreading codes in the direction of time, space-time decoded, and then combined in the direction of frequency. Simulation results demonstrated that the proposed scheme provided high tolerance to Doppler spread and outperformed space-time transmit diversity (STTD) for high-mobility users.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e86-b_12_3468/_p
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@ARTICLE{e86-b_12_3468,
author={Masaaki FUJII, },
journal={IEICE TRANSACTIONS on Communications},
title={Space-Code Transmit Diversity for OFDM-CDM Systems},
year={2003},
volume={E86-B},
number={12},
pages={3468-3475},
abstract={This paper presents a transmit diversity scheme that uses space-time block codes (STBC) in space-spreading code dimensions for time-direction spreading or two-dimensional spreading orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) downlink transmission. The STBC output symbols in two adjacent time slots are spread by two distinctive spreading codes and multiplexed in the same spreading segment. At a receiver, the received subcarrier signals are despread with the two spreading codes in the direction of time, space-time decoded, and then combined in the direction of frequency. Simulation results demonstrated that the proposed scheme provided high tolerance to Doppler spread and outperformed space-time transmit diversity (STTD) for high-mobility users.},
keywords={},
doi={},
ISSN={},
month={December},}
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TY - JOUR
TI - Space-Code Transmit Diversity for OFDM-CDM Systems
T2 - IEICE TRANSACTIONS on Communications
SP - 3468
EP - 3475
AU - Masaaki FUJII
PY - 2003
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E86-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2003
AB - This paper presents a transmit diversity scheme that uses space-time block codes (STBC) in space-spreading code dimensions for time-direction spreading or two-dimensional spreading orthogonal frequency-division multiplexing code-division multiplexing (OFDM-CDM) downlink transmission. The STBC output symbols in two adjacent time slots are spread by two distinctive spreading codes and multiplexed in the same spreading segment. At a receiver, the received subcarrier signals are despread with the two spreading codes in the direction of time, space-time decoded, and then combined in the direction of frequency. Simulation results demonstrated that the proposed scheme provided high tolerance to Doppler spread and outperformed space-time transmit diversity (STTD) for high-mobility users.
ER -
English
