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Now showing items 11-20 of 75
Minimizing correlation effect using zero cross correlation code in spectral amplitude coding optical code division multiple access
(The Optical Society of Japan, 2012-01)
The use of minimal multiple access interference (MAI) in code design is investigated. Applying a projection and mapping techniques, a code that has a zero cross correlation (ZCC) between users in optical code division ...
Investigation the performance of unipolar SAC-OCDMA codes
(AENSI Publications, 2012-01)
In this paper, we investigate the performance of unipolar Spectral Amplitude Coding Optical Code Division multiple Access (SAC-OCDMA) codes. A performance comparison made between various unipolar SAC-OCDMA codes such as ...
New approach for evaluation of the performance of spectral amplitude coding-optical code division multiple access system on high-speed data rate
(The Institution of Engineering and Technology, 2012-08-14)
In this study, the authors proposed a new approach to evaluate the system performance of spectral amplitude codingoptical
code division multiple access (SAC-OCDMA) systems. The system performance is evaluated based on a ...
Development of a new approach for high-quality quadrupling frequency optical millimeter-wave signal generation without optical filter
(PIER, 2013)
In this paper, we propose a new approach to generate quadrupling-frequency optical millimeter-wave (mm-wave) signal with carrier suppression by using two parallel Mach-Zehnder modulators (MZMs) in Radio-over-fiber (RoF) ...
New code with non-zero cross correlation for spectral amplitude coding optical code-division multiple-access systems
(Institute of Electrical and Electronics Engineers (IEEE), 2012-05-21)
This paper presented the novel of a new class of code with Non-Zero Cross-Correlation for Spectral-Amplitude Coding in Optical Code Division Multiple Access (OCDMA) systems. A new code namely Modified Non-Zero Cross ...
Increasing capacity and suppress the crosstalk by using hybrid optical OFDM/ WDM system
(Trans Tech Publications, 2014)
Hybrid optical OFDM/WDM system is proposed to provide longer reach and larger capacity comparing with existing PON systems in order to meet the ever increasing bandwidth demand and data rate of next generation optical ...
Study of the OCDMA transmission characteristics in FSO-FTTH at various distances, outdoor
(De Gruyter, 2013-06)
It is important to apply the field Programmable Gate Array (FPGA), and Optical Switch technology as an encoder and decoder for Spectral Amplitude Coding Optical Code Division Multiple Access (SAC-OCDMA) Free Space Optic ...
A divided spectrum balanced detection technique for intensity noisereduction in SAC OCDMA systems
(Elsevier GmbH, 2013-12)
In this paper we propose a simple divided spectrum balanced detection (DSBD) for spectral amplitudecoding (SAC) optical code division multiple access (OCDMA) systems. SAC OCDMA systems are limited byphase induced intensity ...
Analysis OCDMA system bit-error-rate using NAND detection at different data rate
(The International Society for Optical Engineering (SPIE), 2013)
In this study, the OCDMA system is analyzed to enhance the Bit-Error-Rate (BER) performance using NAND subtraction detection technique. Enhanced Double Weight (EDW) code is used as a signature address of OCDMA system. The ...
Impact of multi-diagonal code on high-speed spectral amplitude coding optical code division multiple-access networks
(Springer-Verlag, 2013-09)
In this paper, we present the impact of the multi-diagonal (MD) code for high data rate in spectral amplitude coding optical code division multiple-access (SAC-OCDMA) networks. An MD code structure for SAC-OCDMA system is ...