A Study of Timing Control and Array Weight Error Effects in the Antenna Array Aided Uplink Synchronous DS-CDMA System
Summary :
We investigate the effects of timing misalignment and imperfect array weight vector generation on the antenna array (AA)-aided uplink synchronous DS-CDMA system. Previous works have assumed perfect uplink synchronization among first path's receiving timing and perfect array weight vector calculation. Unfortunately, practical system will experience of timing control error (TCE) and array weight error (AWE). Accordingly, this letter undertakes an analysis of the impacts of TCE and AWE, evaluating a closed form BER performance considering the important factors such as the number of antennas, the variance of AWE and the misalignment factor as a measure of the TCE in dispersive Rayleigh multipath fading channel. Additionally, the scenario of synchronous uplink with the cell-site AA is compared with asynchronous scheme. Numerical results show that the performance in the synchronous uplink can be further improved, even at high levels of AWE and TCE.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E90-B No.12 pp.3729-3732
- Publication Date
- 2007/12/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1093/ietcom/e90-b.12.3729
- Type of Manuscript
- LETTER
- Category
- Wireless Communication Technologies
Authors
Keyword
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Yong-Seok KIM, "A Study of Timing Control and Array Weight Error Effects in the Antenna Array Aided Uplink Synchronous DS-CDMA System" in IEICE TRANSACTIONS on Communications,
vol. E90-B, no. 12, pp. 3729-3732, December 2007, doi: 10.1093/ietcom/e90-b.12.3729.
Abstract: We investigate the effects of timing misalignment and imperfect array weight vector generation on the antenna array (AA)-aided uplink synchronous DS-CDMA system. Previous works have assumed perfect uplink synchronization among first path's receiving timing and perfect array weight vector calculation. Unfortunately, practical system will experience of timing control error (TCE) and array weight error (AWE). Accordingly, this letter undertakes an analysis of the impacts of TCE and AWE, evaluating a closed form BER performance considering the important factors such as the number of antennas, the variance of AWE and the misalignment factor as a measure of the TCE in dispersive Rayleigh multipath fading channel. Additionally, the scenario of synchronous uplink with the cell-site AA is compared with asynchronous scheme. Numerical results show that the performance in the synchronous uplink can be further improved, even at high levels of AWE and TCE.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e90-b.12.3729/_p
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@ARTICLE{e90-b_12_3729,
author={Yong-Seok KIM, },
journal={IEICE TRANSACTIONS on Communications},
title={A Study of Timing Control and Array Weight Error Effects in the Antenna Array Aided Uplink Synchronous DS-CDMA System},
year={2007},
volume={E90-B},
number={12},
pages={3729-3732},
abstract={We investigate the effects of timing misalignment and imperfect array weight vector generation on the antenna array (AA)-aided uplink synchronous DS-CDMA system. Previous works have assumed perfect uplink synchronization among first path's receiving timing and perfect array weight vector calculation. Unfortunately, practical system will experience of timing control error (TCE) and array weight error (AWE). Accordingly, this letter undertakes an analysis of the impacts of TCE and AWE, evaluating a closed form BER performance considering the important factors such as the number of antennas, the variance of AWE and the misalignment factor as a measure of the TCE in dispersive Rayleigh multipath fading channel. Additionally, the scenario of synchronous uplink with the cell-site AA is compared with asynchronous scheme. Numerical results show that the performance in the synchronous uplink can be further improved, even at high levels of AWE and TCE.},
keywords={},
doi={10.1093/ietcom/e90-b.12.3729},
ISSN={1745-1345},
month={December},}
Copy
TY - JOUR
TI - A Study of Timing Control and Array Weight Error Effects in the Antenna Array Aided Uplink Synchronous DS-CDMA System
T2 - IEICE TRANSACTIONS on Communications
SP - 3729
EP - 3732
AU - Yong-Seok KIM
PY - 2007
DO - 10.1093/ietcom/e90-b.12.3729
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E90-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2007
AB - We investigate the effects of timing misalignment and imperfect array weight vector generation on the antenna array (AA)-aided uplink synchronous DS-CDMA system. Previous works have assumed perfect uplink synchronization among first path's receiving timing and perfect array weight vector calculation. Unfortunately, practical system will experience of timing control error (TCE) and array weight error (AWE). Accordingly, this letter undertakes an analysis of the impacts of TCE and AWE, evaluating a closed form BER performance considering the important factors such as the number of antennas, the variance of AWE and the misalignment factor as a measure of the TCE in dispersive Rayleigh multipath fading channel. Additionally, the scenario of synchronous uplink with the cell-site AA is compared with asynchronous scheme. Numerical results show that the performance in the synchronous uplink can be further improved, even at high levels of AWE and TCE.
ER -
English
