NDLI: Unipolar codes with ideal in-phase cross-correlation for spectral amplitude-coding optical CDMA systems

Content Provider	IEEE Xplore Digital Library
Author	Zou Wei Ghafouri-Shiraz, H.
Copyright Year	1972
Abstract	Unipolar codes with ideal in phase cross-correlation are important in spectral amplitude-coding optical code-division multiple-access (CDMA) systems since these codes eliminate multiuser interference and also suppress the effect of phase-induced intensity noise. However, very little research work has been done on such codes although codes with ideal cross-correlation have been studied for many years. In the paper by Zhou et al.(see Electron. Lett., vol.36, p.728-29, 2000), such a code has been introduced without a clear construction method. In this paper, we firstly review this old code, and then construct two new codes with ideal in-phase cross-correlation in algebraic ways. Both of the proposed new codes are obtained by modifying former codes with ideal cross-correlation. It has been shown that the system performance can be improved significantly by using codes with ideal in-phase cross-correlation instead of the Hadamard code. These codes can also be used in synchronous optical CDMA systems for multiuser interference cancellation.
Starting Page	1209
Ending Page	1212
Page Count	4
File Size	226360
File Format	PDF
ISSN	00906778
Volume Number	50
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multiaccess communication Optical noise Electron optics Interference elimination Interference suppression Multiple access interference Noise level Phase noise System performance Error correction
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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