Dispersion Compensation for Ultrashort Light Pulse CDMA Communication Systems (Regular section)
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概要
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copyright(c)2002 IEICE許諾番号：08RB0011 http://search.ieice.org/index.htmlWe investigate dispersion compensation using dispersion-compensating fibers (DCFs) for ultrashort light pulse code division multiple access (CDMA) communication systems in a multi-user environment. We employ fiber link that consists of a standard single-mode fiber (SMF) connected with two different types of DCFs. Fiber dispersion can be effectively decreased by adjusting the length ratios of DCFs to SMF appropriately. Some criteria for dispersion compensation are proposed and their performances are compared. We theoretically derive a bit error rate (BER) of ultrashort light pulse CDMA systems including the effects of the dispersion and multiple access interference (MAI). Moreover, we reveal the mutual relations among BER performance, fiber dispersion, MAI, the number of chips, a bandwidth of a signal, and a transmission distance for the first time. As a result, we show that our compensation strategy improves system performance drastically.
- 社団法人電子情報通信学会の論文
- 2002-12-01
著者
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Yashima Hiroyuki
Department Of Management Science Tokyo University Of Science
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Igarashi Y
Department Of Information And Computer Sciences Saitama University
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IGARASHI Yasutaka
Department of Information and Computer Sciences, Saitama University
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Igarashi Yasutaka
Department Of Electrical Engineering Tokyo University Of Science
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Yashima Hiroyuki
Department Of Information And Computer Sciences Saitama University
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八嶋 弘幸
Department of Management Science, Tokyo University of Science
関連論文
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- Performance Analysis of Coherent Ultrashort Light Pulse CDMA Communication Systems with Nonlinear Optical Thresholder(Fiber-Optic Transmission for Communications)
- Dispersion Compensation for Ultrashort Light Pulse CDMA Communication Systems (Regular section)
- Improvement of Coherent Ultrashort Light Pulse CDMA Communication Systems with Distinct 4-Level m-Sequences(Wide Band Systems)
- On the Code Synchronization of PPM/OPPM Fiber-Optic CDMA Systems(Wide Band Systems)