eprintid: 792
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/07/92
datestamp: 2023-11-09 15:48:56
lastmod: 2023-11-09 15:48:56
status_changed: 2023-11-09 15:23:11
type: article
metadata_visibility: show
creators_name: Ahmed, H.Y.
creators_name: Faye, I.
creators_name: Saad, N.M.
creators_name: Aljunid, S.A.
title: Spectral amplitude coding OCDMA: Performance analysis on detection schemes using vectors combinatorial code families
ispublished: pub
keywords: Codes (symbols); Multiple access interference; Optical communication; Signal processing, Broadband sources; Code construction; Combinatorial codes; Cross correlations; Performance analysis; Spectral amplitude coding; Spectral Amplitude CodingOptical Code Division Multiple Access (SAC-OCDMA); System deterioration, Code division multiple access
note: cited By 0
abstract: In Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) system, Multip-user Interference (MUI) problem which increases with the number of users severely limits the performance of the system. However, phase induce intensity noise (PIIN) arising from spontaneous emission of broad band source is another problem leads to system deterioration should be addressed. Moreover, a proper design of detection scheme which is being able to extract the wanted signal from the unwanted signal successfully needs to be considered as well. In order to overcome the stated problems, Vectors Combinatorial Codes (VCC) with ideal in-phase cross correlation, based on combinations of specific vectors is proposed. In our approach, any integer number of users and weights can be used in code construction. This makes our proposed code a strong candidate for future optical communication systems. The complementay detection schem can be used to give accurate results if the cross correlation (CC) is fixed, therefore, a new detection scheme based on XOR logic is proposed. This new detection scheme can be used even if the CC is not fixed. In addition, a new encoder/decoder structure based on this new scheme using fiber Brag gratings (FBGs) for VCC is proposed. It has been shown that, performance can be improved significantly when VCC used with XOR detection scheme instead of complementary and AND detection schems.
date: 2009
publisher: Walter de Gruyter GmbH
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-76349118107&doi=10.1515%2fJOC.2009.30.4.220&partnerID=40&md5=a673a401cfad91dbb96f57c485c7477e
id_number: 10.1515/JOC.2009.30.4.220
full_text_status: none
publication: Journal of Optical Communications
volume: 30
number: 4
pagerange: 220-224
refereed: TRUE
issn: 01734911
citation:   Ahmed, H.Y. and Faye, I. and Saad, N.M. and Aljunid, S.A.  (2009) Spectral amplitude coding OCDMA: Performance analysis on detection schemes using vectors combinatorial code families.  Journal of Optical Communications, 30 (4).  pp. 220-224.  ISSN 01734911