Presentation 1996/11/19
Performance Analysis of Optical Synchronous PPM/CDMA Systems with Interference Canceller Using Reference Signal
Yoshinobu Gamachi, Hideyuki Uehara, Tomoaki Ohtsuki, Iwao Sasase,
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Abstract(in English) New interference cancellation technique is proposed for optical synchronous code division multiple access (CDMA) systems using pulse position modulation (PPM) signaling (PPM/CDMA) with modified prime sequence codes. In the proposed system, we use one of the modified prime sequence code in one group as a reference signal for other users in the same group. Thus the number of users is decreased only P in comparison with the system without canceller. Here the number of users of the system without canceller equals to P^2. The Poisson effects of the photodetection process is considered in our analysis. The upper bound on the bit error probability of optical synchronous PPM/CDMA systems with interference canceller is derived. We show that the proposed cancellation technique is effective to improve the bit error probability performance and the number of users increases for the same bit error probability as prime number increases.
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Keyword(in English) Reference Signal / Interference Canceller / Optical Synchronous PPM/CDMA System
Paper # OSC96-81
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Committee OCS
Conference Date 1996/11/19(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Performance Analysis of Optical Synchronous PPM/CDMA Systems with Interference Canceller Using Reference Signal
Sub Title (in English)
Keyword(1) Reference Signal
Keyword(2) Interference Canceller
Keyword(3) Optical Synchronous PPM/CDMA System
1st Author's Name Yoshinobu Gamachi
1st Author's Affiliation Dept. of Electrical Engineering, Keio University()
2nd Author's Name Hideyuki Uehara
2nd Author's Affiliation Dept. of Electrical Engineering, Keio University
3rd Author's Name Tomoaki Ohtsuki
3rd Author's Affiliation Dept. of Electrical Engineering, Science University of Tokyo
4th Author's Name Iwao Sasase
4th Author's Affiliation Dept. of Electrical Engineering, Keio University
Date 1996/11/19
Paper # OSC96-81
Volume (vol) vol.96
Number (no) 367
Page pp.pp.-
#Pages 8
Date of Issue