Direct-Detection Optical Synchronous CDMA Systems with Interference Canceller Using Group Information Codes

Hiroshi SAWAGASHIRA; Katsuhiro KAMAKURA; Tomoaki OHTSUKI; Iwao SASASE

Direct-Detection Optical Synchronous CDMA Systems with Interference Canceller Using Group Information Codes

Hiroshi SAWAGASHIRA, Katsuhiro KAMAKURA, Tomoaki OHTSUKI, Iwao SASASE

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We propose a new interference cancellation technique using reference signals for optical synchronous code-division multiple-access (CDMA) systems. In the proposed system, we use the signature code sequences composed of the group information codes and the modified prime code sequences. The group information codes are added in the forefront of the signature code sequences to estimate the amount of the multiple access interference (MAI). The proposed cancellation scheme can be realized with the simpler structure than the conventional canceller using the time division reference signal, because it can reduce the number of optical correlators from P to two where P is the prime number. We analyze the performance of the proposed system with considering the effects of the MAI, avalanche photodiode (APD) noise, and thermal noise. We show that the proposed canceller has better bit error probability than the conventional canceller.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E83-A No.11 pp.2138-2142

Publication Date: 2000/11/25

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Type of Manuscript: Special Section LETTER (Special Section on Spread Spectrum Techniques and Applications)

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Hiroshi SAWAGASHIRA, Katsuhiro KAMAKURA, Tomoaki OHTSUKI, Iwao SASASE, "Direct-Detection Optical Synchronous CDMA Systems with Interference Canceller Using Group Information Codes" in IEICE TRANSACTIONS on Fundamentals, vol. E83-A, no. 11, pp. 2138-2142, November 2000, doi: .
Abstract: We propose a new interference cancellation technique using reference signals for optical synchronous code-division multiple-access (CDMA) systems. In the proposed system, we use the signature code sequences composed of the group information codes and the modified prime code sequences. The group information codes are added in the forefront of the signature code sequences to estimate the amount of the multiple access interference (MAI). The proposed cancellation scheme can be realized with the simpler structure than the conventional canceller using the time division reference signal, because it can reduce the number of optical correlators from P to two where P is the prime number. We analyze the performance of the proposed system with considering the effects of the MAI, avalanche photodiode (APD) noise, and thermal noise. We show that the proposed canceller has better bit error probability than the conventional canceller.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e83-a_11_2138/_p

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@ARTICLE{e83-a_11_2138,
author={Hiroshi SAWAGASHIRA, Katsuhiro KAMAKURA, Tomoaki OHTSUKI, Iwao SASASE, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Direct-Detection Optical Synchronous CDMA Systems with Interference Canceller Using Group Information Codes},
year={2000},
volume={E83-A},
number={11},
pages={2138-2142},
abstract={We propose a new interference cancellation technique using reference signals for optical synchronous code-division multiple-access (CDMA) systems. In the proposed system, we use the signature code sequences composed of the group information codes and the modified prime code sequences. The group information codes are added in the forefront of the signature code sequences to estimate the amount of the multiple access interference (MAI). The proposed cancellation scheme can be realized with the simpler structure than the conventional canceller using the time division reference signal, because it can reduce the number of optical correlators from P to two where P is the prime number. We analyze the performance of the proposed system with considering the effects of the MAI, avalanche photodiode (APD) noise, and thermal noise. We show that the proposed canceller has better bit error probability than the conventional canceller.},
keywords={},
doi={},
ISSN={},
month={November},}

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TY - JOUR
TI - Direct-Detection Optical Synchronous CDMA Systems with Interference Canceller Using Group Information Codes
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2138
EP - 2142
AU - Hiroshi SAWAGASHIRA
AU - Katsuhiro KAMAKURA
AU - Tomoaki OHTSUKI
AU - Iwao SASASE
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E83-A
IS - 11
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - November 2000
AB - We propose a new interference cancellation technique using reference signals for optical synchronous code-division multiple-access (CDMA) systems. In the proposed system, we use the signature code sequences composed of the group information codes and the modified prime code sequences. The group information codes are added in the forefront of the signature code sequences to estimate the amount of the multiple access interference (MAI). The proposed cancellation scheme can be realized with the simpler structure than the conventional canceller using the time division reference signal, because it can reduce the number of optical correlators from P to two where P is the prime number. We analyze the performance of the proposed system with considering the effects of the MAI, avalanche photodiode (APD) noise, and thermal noise. We show that the proposed canceller has better bit error probability than the conventional canceller.
ER -