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In this paper, we present, several aspects of unipolar optical code-division multiple access (OCDMA) codes, focusing on the flexible in-phase cross-correlation code algorithm and its potential for future optical networks. We briefly present a new class of code namely Flexible Cross Correlation (FCC) code for Spectral-Amplitude Coding (SAC) OCDMA approaches. The main coding properties are reviewed...
When mapping is applied for the double weight code family to increase the number of users, for spectral amplitude coding optical code division multiple access (SAC OCDMA) systems, the conventional complementary detection technique cannot be used to retrieve the intended signal because of the unfixed cross-correlation value between different code sequences. This paper studies the software simulation...
To increase the number of users in the double weight (DW) code family, a mapping technique is applied. This mapping technique increases the number of users but at a cost of unfixed cross-correlation property. The complementary detection technique used in spectral amplitude coding (SAC) systems, can completely cancel the multiple access interference (MAI) only if there is a fixed cross-correlation...
This paper handles the effect of increasing the number of users in the double weight (DW) code family. The complementary detection technique can eliminate multi access interference (MAI) only if there is a fixed in phase cross- correlation. When the number of users is increased using the mapping technique the cross-correlation between the users, is either '0' or '1'. In this paper a alternative detection...
This project concentrates on the effects detection technique to the system performance of spectral amplitude coding optical code division multiple access (SAC- OCDMA). The system employed the encoder and decoder modules based on the fiber Bragg gratings (FBGs) to generate the unique code sequences for the users. These modules are basically designed for the modified double weight (MDW) code which allows...
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