Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization

Anh T. PHAM; Hiroyuki YASHIMA

Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization

Anh T. PHAM, Hiroyuki YASHIMA

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This paper theoretically evaluates the performance of overlapping pulse-position modulation (OPPM) fiber-optic code-division multiple-access (FO-CDMA) systems in the presence of code synchronization errors. The analysis is carried out with a constraint on throughput-pulsewidth product. Discussions on effects of various system parameters, such as timing offset, index of overlap, number of users, are presented. The results show that the OPPM FO-CDMA systems with high index of overlaps have better resistance against imperfect synchronization. In fact, the acceptable performance could be maintained even with timing offsets of up to 30% of chip pulsewidth. On the other hand, strict code synchronization is necessarily required, preferably within a half code chip pulsewidth.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E87-A No.10 pp.2581-2584

Publication Date: 2004/10/01

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Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications)

Category: Spread Spectrum Thchnologies and Applications

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Anh T. PHAM, Hiroyuki YASHIMA, "Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization" in IEICE TRANSACTIONS on Fundamentals, vol. E87-A, no. 10, pp. 2581-2584, October 2004, doi: .
Abstract: This paper theoretically evaluates the performance of overlapping pulse-position modulation (OPPM) fiber-optic code-division multiple-access (FO-CDMA) systems in the presence of code synchronization errors. The analysis is carried out with a constraint on throughput-pulsewidth product. Discussions on effects of various system parameters, such as timing offset, index of overlap, number of users, are presented. The results show that the OPPM FO-CDMA systems with high index of overlaps have better resistance against imperfect synchronization. In fact, the acceptable performance could be maintained even with timing offsets of up to 30% of chip pulsewidth. On the other hand, strict code synchronization is necessarily required, preferably within a half code chip pulsewidth.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e87-a_10_2581/_p

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@ARTICLE{e87-a_10_2581,
author={Anh T. PHAM, Hiroyuki YASHIMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization},
year={2004},
volume={E87-A},
number={10},
pages={2581-2584},
abstract={This paper theoretically evaluates the performance of overlapping pulse-position modulation (OPPM) fiber-optic code-division multiple-access (FO-CDMA) systems in the presence of code synchronization errors. The analysis is carried out with a constraint on throughput-pulsewidth product. Discussions on effects of various system parameters, such as timing offset, index of overlap, number of users, are presented. The results show that the OPPM FO-CDMA systems with high index of overlaps have better resistance against imperfect synchronization. In fact, the acceptable performance could be maintained even with timing offsets of up to 30% of chip pulsewidth. On the other hand, strict code synchronization is necessarily required, preferably within a half code chip pulsewidth.},
keywords={},
doi={},
ISSN={},
month={October},}

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TY - JOUR
TI - Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2581
EP - 2584
AU - Anh T. PHAM
AU - Hiroyuki YASHIMA
PY - 2004
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E87-A
IS - 10
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - October 2004
AB - This paper theoretically evaluates the performance of overlapping pulse-position modulation (OPPM) fiber-optic code-division multiple-access (FO-CDMA) systems in the presence of code synchronization errors. The analysis is carried out with a constraint on throughput-pulsewidth product. Discussions on effects of various system parameters, such as timing offset, index of overlap, number of users, are presented. The results show that the OPPM FO-CDMA systems with high index of overlaps have better resistance against imperfect synchronization. In fact, the acceptable performance could be maintained even with timing offsets of up to 30% of chip pulsewidth. On the other hand, strict code synchronization is necessarily required, preferably within a half code chip pulsewidth.
ER -