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A hybrid Spectral-Amplitude-Coding (SAC) — Optical Code Division Multiple Access (OCDMA) /Wavelength — Division-Multiple-Access (WDMA) using Random Diagonal (RD) code is proposed in this paper. The RD code is used in the proposed system due to its receiver's flexibility. The system is simulated using OptiSystem software. In our proposed system, four users of WDMA system with bit rate of 10Gbps is...
In this paper, we demonstrate a novel architecture of variable weight Zero Cross Correlation code in the family of Spectral Amplitude Coding(SAC) Optical Code Division Multiple Access (OCDMA) to be utilized in the triple play services of OCDMA applications based on the end users demand and requirements. This is achieved by adapting multiple weights of Zero Cross Correlation (ZCC) code onto one system...
The wavelength-time modified double weight (MDW) optical division multiple access (OCDMA) scheme to reduce multiple access interference (MAI) and compensate bit error rate (BER) and phase-induced intensity noise (PIIN) in incoherent OCDMA systems is proposed. The analysis permits thorough understanding of PIIN, shot and thermal noises effect on 2-Dimensional (2-D) MDW OCDMA system performance. PIIN...
In this paper, an improvement of achievable system capacity Avalanche photodiode (APD) performance of spatial/spectral modified double weight (MDW) code for cardinality, bit error rates (BER) and noise interference is analyzed. The results in very good agreement indicate that 61% cardinality improvements compare to 2-D MDW code with PIN. The effective transmitted power (Psr) for 2-D MDW-APD (M=135,...
A hybrid optical code division multiple access (OCDMA) over wavelength division multiplexing (WDM) system is proposed for supporting large numbers of subscriber for fiber-to-the-home (FTTH) network. The system combines two different techniques, namely OCDMA and WDM in order to support many subscribers simultaneously. In this study, the modified double weight (MDW) code is used as signature address...
This paper demonstrates the transmission performance of a subcarrier multiplexing over optical CDMA for a simple point-to-point network design. This integrated system is expected to improve the spectral efficiency and the channel data rate of the OCDMA network. The simulation is done using Optisys version 7.0. Spectral amplitude coding (SAC)-OCDMA is employed in this study because of its ability to...
The study is reported the transmission of a spectral-sliced WDM channel at 1 Gbp/s over LAN with different channel spacing. A sliced channel designed as 1:8 slicing element is integrated, multiplexed, through SMF, and finally demultiplexed into 8 channels namely “spectral slicing” having same spacing bandwidth. The demultiplexer technique is used in WDM and the network applications can apply for Fiber-To-The-Home...
Orthogonal Frequency Division Multiplexing (OFDM) is predicted to be implemented in future broadcasting and Wireless Local Area Network (WLAN) systems due to its robustness in transmitting a high data rate. Some examples of current applications using OFDM include ETSI BRAN in Europe, IEEE802.11 in United States, and ARIB MMAC in Japan have adopted the OFDM transmission technology as a physical layer...
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