Performance Analysis of Optical Synchronous PPM/CDMA Systems with Interference Canceller Under Number-State Light Field (Special Issue on Optical Access Networks toward Life Enhancement)
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概要
- 論文の詳細を見る
The performance of direct-detection optical synchronous code-division multiple-access (CDMA) systems using pulse position modulation (PPM) signaling (PPM/CDMA) with interference canceller is analyzed. In optical CDMA systems, it is known that the maximum number of simultaneous users in CDMA systems is limited by the maximum tolerable interference among users. If the receiver is able to estimate this interference and cancel or reduce its effect, the capacity of CDMA systems can be increased and the system performance can be improved. There are some ways to increase the system performance, that is, using PPM and interference canceller. However, the system using both PPM and interference canceller has not been analyzed. In this paper, the upper bound on the bit error probability of optical synchronous PPM/CDMA systems with interference canceller is derived, and the bit error probability of optical synchronous PPM/CDMA systems is evaluated under the assumption of number-state light field where the background noise is negligible. We compare the bit error probability of the optical synchronous PPM/CDMA systems with interference canceller to that of the optical synchronous PPM/CDMA systems without interference canceller and to those of optical synchronous OOK/CDMA systems with and without interference canceller. We show that optical synchronous PPM/CDMA systems with interference canceller have better bit error probability performance.
- 社団法人電子情報通信学会の論文
- 1996-07-25
著者
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SASASE Iwao
the Faculty of Science and Technology, Keio University
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Sasase I
Keio Univ. Yokohama‐shi Jpn
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Sasase Iwao
The Department Of Information And Computer Science Keio University
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OHTSUKI Tomoaki
the Faculty of Science and Technology, Science University of Tokyo
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Sasase Iwao
The Faculty Of Science And Technology Keio University
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Ohtsuki Tomoaki
The Department Of Electrical Engineering Science University Of Tokyo
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Ohtsuki Tomoaki
Department Of Electrical Engineering Tokyo University Of Science
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GAMACHI Yoshinobu
the Faculty of Science and Technology, Keio University
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UEHARA Hideyuki
the Faculty of Science and Technology, Keio University
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Ohtsuki Tomoaki
The Faculty Of Science And Technology Science University Of Tokyo
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Ohtsuki T
Department Of Electrical Engineering Tokyo University Of Science
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UEHARA Hideyuki
Toyohashi University of Technology
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Uehara H
Toyohashi Univ. Technol. Toyohashi‐shi Jpn
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Uehara Hideyuki
The Faculty Of Science And Technology Keio University
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Ohtsuki Tomoaki
The Faculty Of Science And Technology Keio University
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Gamachi Yoshinobu
The Departmetnt Of Electrical Engineering Keio University
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