Results 61 to 70 of about 102,182 (133)

Multiple access interference elimination with enhanced chromatic dispersion tolerance in SAC OCDMA

open access: yesIEICE Electronics Express, 2008
We demonstrate a direct decoding scheme to eliminate multiple access interference in optical spectral-amplitude-coded, multiple access networks. By detecting only the non-overlapping spectrums, our scheme shows a better BER of eight orders of magnitude over the conventional complementary subtraction scheme, when 16 simultaneous channels with 10Gbps bit
Siti Barirah Ahmad Anas   +3 more
openaire   +3 more sources

Enhancement of performance of a hybrid SAC–OCDMA system using dynamic cyclic shift code [PDF]

open access: yes, 2012
Link to publisher's homepage at http://www.ifo.lviv.ua/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 ...
Thanaa Hussein, Abd   +4 more
core  

Enhanced performance of SAC-OCDMA system based on SPD detection utilizing EDFA for access networks

open access: yes, 2014
Link to publisher's homepage at http://www.jocm.us/In this paper, we present the impact of an EDFA (Erbium Doped Fibre Amplifier) for high data rate in Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) networks.
Hamza Mohammed Ridha, Al-Khafaji   +3 more
core   +1 more source

Performance Analysis of SAC-OCDMA and Physical Layer Security Utilizing Block Shifted Circulant Matrix Code

open access: yesIEEE Access
In this study, we propose a zero correlation code block shifted circulant matrix (BSCM) using the circular shifting of identity matrix mapping technique for spectral amplitude coding optical code division multiple access. The design addresses cardinality
Precious Ogbonda Amadi   +5 more
doaj   +1 more source

Performance Evaluation of Underwater Wireless SAC-OCDMA System

open access: yes
This study evaluates Underwater wireless spectral amplitude-coding optical code division multiple access (SAC-OCDMA) systems bit error rate (BER) performance when employing Modified Quadratic Congruence (MQC) codes as user address sequences. Balanced detection is utilized to mitigate multi-user  interference (MUI), and use constant in-phase cross ...
Suman Kumar Dey   +3 more
openaire   +1 more source

EFFECT OF FIBER DISTANCE ON VARIOUS SAC-OCDMA DETECTION TECHNIQUES

open access: yesInternational Journal of Research in Engineering and Technology, 2013
Optical code division multiple access system (OCDMA) has been gaining importance with increasing demands of high speed and large capacity for communication in optical networks. OCDMA system is totally asynchronous, that does not require any clock signals for synchronization in the network.
openaire   +1 more source

A new code family suitable for high-rate SAC OCDMA PONs applications

open access: yesIEEE Journal on Selected Areas in Communications, 2010
In this paper, a new code family named partitioned partial prime (PPP) code is proposed for high-rate spectral amplitude code (SAC) optical code-division multiple-access (OCDMA) passive optical networks (PONs) applications. They are derived from the well-known prime codes (PCs) and a manner of partitioning technique.
Tseng, Shin-Pin, Wu, Jingshown
openaire   +3 more sources

Performance Analysis of the New Flexible Double Weight (FDW) Code With Various Detection Techniques

open access: yesIEEE Access
In this paper, Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) system performance is analyzed using a Flexible Double Weight (FDW) code with various detection techniques. In theoretical analysis, various types of noise such as
Muhammad Amirul Anuar   +6 more
doaj   +1 more source

Establishing a Spectral Optical CDMA System Involving the Use of Two Mutually Orthogonal States of Polarizations Using 1-D Two-Distinct Codes With Two-Code Keying

open access: yesIEEE Access
We propose 1-D Two-Distinct codes with two-code keying (TCK) using two mutually orthogonal states of polarization (SOP) in spectral components as a new code family for spectral amplitude coding (SAC) in optical code division multiple access (OCDMA ...
Bih-Chyun Yeh
doaj   +1 more source

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