Fiber characteristics play a critical role in the propagation of short optical pulses. To implement a temporal Optical Code-Division-Multiple-Access (OCDMA) solution, it is necessary to take into account the linear and nonlinear effects resulting from the propagation inside the fiber. In this paper, we study the importance of these phenomena along with the performance of the network. This study...

With the emergence of network driven applications and high speed requirements in communication along with security and large bandwidth, there is a need for a network technique which is capable of providing all the above with a reduced cost. A multiple access technique called Optical Code Division Multiple Access (OCDMA) seems to be fulfilling the above criteria. OCDMA combines the large bandwid...

Optical code division multiple access (OCDMA) provides another dimension to multiple access systems, in which each user is assigned a unique code. This allows each subscriber to simultaneously access the medium without any contention. However, simultaneous access of multiple users introduces multiple access interference (MAI) which primarily deteriorates the performance of OCDMA systems. This p...

Optical code division multiple access (OCDMA) technique is required to meet the increased demand for high speed, large capacity communications in optical networks. In this paper, the transmission performance of a spectral amplitude coding (SAC)-OCDMA network is investigated when a conventional single mode fiber (SMF) is used as the transmission link. The results can be used as guidelines to ass...

A code design algorithm for application in Multi-Dimensional Optical Code Division Multiple Access (MD-OCDMA) for asynchronous optical fibre communication is proposed. Two-dimensional (2-D) wavelength-time or space-time OCDMA and three-dimensional (3-D) space-wavelength-time OCDMA are subsets of MD-OCDMA. Some applications and the performance analysis of the algorithm in 2-D multipulse per row ...

We evaluate the use of edge-illuminated holographic Bragg filters formed in phenanthrenequinone-doped poly(methyl methacrylate) for optical-code-division multiple-access (OCDMA) coding and decoding applications. Experimental cascaded Bragg filters are formed to select two different wavelengths with a fixed distance between the gratings and are directly coupled to a fiber-measurement system. The...

This paper focuses on the BER, Q-Factor, Eye Height for a four user OCDMA with varying jitter. Performance of the OCDMA communication system has been evaluated in terms of bit error rate, Q-factor and eye closure with jitter varying from 0 Unit-Interval to 0.7 Unit-Interval in steps of 0.1 Unit-Interval. Simulations were carried out using commercially available simulator from Gigasoft, OPTIWAVE.

One fiber radio scheme using shifted prime codes for interference elimination is proposed for optical code-division multiple-access (OCDMA) network. By taking advantage of the cyclic property of the shifted prime codes in the same code groups, the proposed compact decoder is low cost and suitable to be used in the task manager node in the applications of wireless sensor networks. The performanc...

Optical Code Division Multiple Access (OCDMA) is one promising candidate for the provision of moderate security communications with large dedicated bandwidth to each end user. We present a new teletraffic model for the call-level performance of an OCDMA Passive Optical Network (PON) configuration that accommodates multiple serviceclasses. Parameters related to the local blocking, Multiple Acces...

With the concept of 3G services OCDMA is one of the important technology, that provides a very high speed communication. In this technology multiple users can communicate simultaneously to transfer different kind of data. OCDMA enables the best use of available bandwidth and the spectrum to represent a cost efficient network. But in a network there is always the requirement to increase the secu...