In this work an experimental demonstration is proposed to implement the synchronous optical code division multiple access system using two dimensional wavelength hopping and time spreading optical prime code is presented. An optical CDMA system is configured on latest version of optisystem by optiwave for the 20 users (Prime Number = 5) connected in a network operating at a bit rate 10 Gbps eac...

This paper describes the implementation of error detection and correction logic in the optoelectronic cache memory prototype at the University of Pittsburgh. In this project, our goal is to integrate a 3D optical memory directly into the memory hierarchy of a personal computer. As with any optical storage system, error correction is essential to maintaining acceptable system performance. We hav...

We propose and experimentally demonstrate a 2.5 Gbits/sper user wavelength-encoded optical code-division multiple-access encoder-decoder structure based on opto-VLSI processing. Each encoder and decoder is constructed using a single 1D opto-very-large-scale-integrated (VLSI) processor in conjunction with a fiber Bragg grating (FBG) array of different Bragg wavelengths. The FBG array spectrally ...

The advantages of optics that include processing speed and information throughput, modularity and versatility could be incorporated into one of the most interesting and applicable topics of digital communication related to Viterbi decoders. We aim to accelerate the processing rate and capabilities of Viterbi decoders applied for convolution codes, speech recognition, inter symbol interference (...

The performance comparison of different OCDMA schemes is addressed in this paper. As the result, the merits of coherent 1-D time-spreading and spectral coding schemes and incoherent 2-D scheme are highlighted. The keys towards practical OCDMA networks are discussed in terms of en/decoder, optical sources, optical thresholding as well as multiple access interferences and beat noise suppression. ...