Inlämning av Examensarbete / Submission of Thesis

Abdul Gafur MEE09:51, pp. 57. COM/School of Computing, 2009.

The work

Författare / Author: Abdul Gafur
Titel / Title: Dispersion Effects on OCDMA System Performance
Abstrakt Abstract:

This thesis presents the effect of dispersion and Multi Access Interference (MAI) of optical fiber on the Bit Error Rate (BER) performance of a Direct Sequence Optical Code Division Multiple Access (DS-OCDMA) network by means of intensity modulation and optical receiver correlators.

By using Matlab simulations, Signal-to-Noise Ratio (SNR) versus Received Optical Power (ROP) of an OCDMA transmission system can be evaluated with a so-called 7-chip m-sequence for different numbers of system users. This can be done for the ROP versus BER for various lengths of single mode optical fiber by taking into consideration the dispersion effect in the optical fiber.

Matlab simulations can be performed in order to illustrate the reduction of the dispersion index gamma, or to visualize different scenarios, e.g., what amount of transmitted power is required in order to obtain a BER of 10-9 when the length of the optical fiber is increased.

Ämnesord / Subject: Elektroteknik - Electrotechnology
Datavetenskap - Computer Science\Networks and Communications
Telekommunikation - Telecommunications
Nyckelord / Keywords: OCDMA, MAI, SIK, ROP, WDM, PRNG

Publication info

Dokument id / Document id:
Program:/ Programme Magisterprogram i Elektroteknik / Master of Science in Electrical Engineering
Registreringsdatum / Date of registration: 09/23/2009
Uppsatstyp / Type of thesis: Masterarbete/Master's Thesis (120 credits)


Handledare / Supervisor: Dr. Doru Constantinescu
Examinator / Examiner: Dr. Doru Constantinescu
Organisation / Organisation: Blekinge Institute of Technology
Institution / School: COM/School of Computing

+46 455 38 50 00

Files & Access

Bifogad uppsats fil(er) / Files attached: dispersion_ocdma_performance.pdf (1160 kB, öppnas i nytt fönster)