Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization(Spread Spectrum Thchnologies and Applications)(<Special Section>Information Theory and Its Applications)

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概要

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• copyright(c)2004 IEICE許諾番号：08RB0011　http://search.ieice.org/index.htmlThis 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.

• 社団法人電子情報通信学会の論文
• 2004-10-01

著者

• Pham A

  Saitama University

• Yashima Hiroyuki

  Tokyo Univ. Sci. Tokyo Jpn

• Yashima H

  Tokyo University Of Science

• PHAM Anh

  Saitama University

• 八嶋 弘幸

  Saitama University

関連論文

• Overlapping PPM Fiber-Optic CDMA Systems with Imperfect Code Synchronization(Spread Spectrum Thchnologies and Applications)(Information Theory and Its Applications)
• Performance Analysis of MDSS Code Acquisition Using SLS for Optical CDMA Systems(Fiber-Optic Transmission for Communications)
• Performance Analysis of Coherent Ultrashort Light Pulse CDMA Communication Systems with Nonlinear Optical Thresholder(Fiber-Optic Transmission for Communications)

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