Experimental investigation on synchronized optical code division multiple access transmission

Zoualfaghari, Mohammad Hossein; Ghafouri‐Shiraz, H.

doi:10.1007/s11082-015-0326-8

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2016

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“…bit error rate) however, it can be further improved by changing the structure of these codes. As for the system implementation, recently a few experimental research papers are reported [16], which is a great indication that practical implementation of OCDMA networks will happen in near future.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Two New Code Families for Spectral-Amplitude-Coding Optical CDMA Systems

Shi

Ghafouri‐Shiraz

2016

J. Lightwave Technol.

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Abstract──In this paper, we have proposed two new 1-D code families for spectral amplitude coding optical code-division multiple-access (SAC-OCDMA) systems. They are referred to as (i) partitioned diagonal code (PDC) and (ii) partitioned modified quadratic congruence code (PMQCC). Simulation results show that both of codes can reduce phase-induced intensity noise (PIIN) and support more active users as compared with MQC. Our results show that for similar code length PDC and PMQCC can support 11% and 14%, respectively, more simultaneous users as compared with MQC. Also at each synchronous time, the auto-correlations of PDC and PMQCC reach to their peak values and their cross-correlations remain one. Index Terms-Spectral amplitude coding (SAC), optical code-division multiple-access (OCDMA), phase-induced intensity noise (PIIN), partitioned diagonal code (PDC), partitioned MQC code (PMQCC).

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Section: Introductionmentioning

confidence: 99%