Journal ArticleDOI
Development of a new code family based on SAC-OCDMA system with large cardinality for OCDMA network
TLDR
Simulation results show this new Multi-Diagonal code for Spectral Amplitude – Coding Optical Code Division Multiple Access to provide a much better performance compared to Modified Quadratic Congruence (MQC) code and Random Diagonal (RD) code.About:
This article is published in Optical Fiber Technology.The article was published on 2011-07-01. It has received 100 citations till now. The article focuses on the topics: Constant-weight code & Systematic code.read more
Citations
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Journal ArticleDOI
Performance Evaluation of SAC-OCDMA System in Free Space Optics and Optical Fiber System Based on Different Types of Codes
TL;DR: The simulation results show that the SAC-OCDMA codes performance is media-dependent, and the ZCC codes give better performance than low cross correlation codes in both FSO and OFS scenarios.
Journal ArticleDOI
Diagonal Eigenvalue Unity (DEU) code for spectral amplitude coding-optical code division multiple access
TL;DR: Simulation results taken from a commercial optical systems simulator, Virtual Photonic Instrument (VPI™) shown that, using point to multipoint transmission in passive optical network (PON), DEU has better performance and could support long span with high data rate.
Journal ArticleDOI
Performance analysis of high speed backward compatible TWDM-PON with hybrid WDM–OCDMA PON using different OCDMA codes
TL;DR: Based on the numerical calculations, the proposed system using modified quadratic congruence (MQC) code is shown to provide better performance compared to multi diagonal, hadamard, zero cross-correlation (ZCC), shift ZCC and flexible cross-Correlation codes.
Journal ArticleDOI
Enhancement of performance of a hybrid SAC–OCDMA system using dynamic cyclic shift code
TL;DR: In this article, a hybrid subcarrier multiplexing (SCM) technique incorporating spectral amplitude coding and optical code division multiple access (SAC-OCDMA) technologies is investigated using both numerical and simulation methods.
Journal ArticleDOI
Development of new two-dimensional spectral/spatial code based on dynamic cyclic shift code for OCDMA system
TL;DR: By keeping the same code length and increasing the spatial code, the performance of the 2D-DCS system is enhanced: it provides higher data rates while using lower transmitted power and a smaller spectral width.
References
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Journal ArticleDOI
Modified quadratic congruence codes for fiber Bragg-grating-based spectral-amplitude-coding optical CDMA systems
TL;DR: In this article, a series of new code families for the spectral-amplitude-coding optical code-division multiple access (CDMA) system, and proposed new transmitter and receiver structures based on tunable chirped fiber Bragg gratings (FBGs) were constructed.
Journal ArticleDOI
Performance enhancement of spectral-amplitude-coding optical CDMA using pulse-position modulation
TL;DR: The interference-limited performance of the PPM-OCDMA system is found to be superior to that of the original system when the number of simultaneous users is of the order of thePPM word length or larger.
Journal ArticleDOI
A new family of optical code sequences for spectral-amplitude-coding optical CDMA systems
Syed Alwee Aljunid,Mahamod Ismail,Abdul Rahman Ramli,Borhanuddin Mohd Ali,Mohamad Khazani Abdullah +4 more
TL;DR: Modified double-weight (MDW) code is shown here to provide a much better performance compared to Hadamard and modified frequency-hopping codes.
Journal ArticleDOI
New design of spectral amplitude coding in OCDMA with zero cross-correlation
TL;DR: It is shown that optical ZCC code can accommodate more users simultaneously for the typical error rate of optical communication system of 10 −9 and improves bit-error-rate performance as compared to the conventional coders.
Journal ArticleDOI
Optical CDMA network codecs structured with M-sequence codes over waveguide-grating routers
TL;DR: A compact optical code-division multiple-access (OCDMA) network coder-decoder (codec) of a spectral-amplitude-coding (SAC) scheme is presented, which results in a cheap system with reduced system complexity.