International Journal of Modern Education and Computer Science (IJMECS)
ISSN: 2075-0161 (Print), ISSN: 2075-017X (Online)
Publisher: MECS- IJMECS Vol.4, No.8, August 2012
Simulative Analysis of Influence of Modulation Techniques on COFDM based Radio over Fiber Transmission | |
Full Text (PDF, 600KB), PP.1-8 | |
Author(s) | |
Shikha Mahajan,Naresh Kumar | |
Index Terms | |
RoF,COFDM,MMF,Q-factor | |
Abstract | |
In this paper, Coded Orthogonal Frequency Division Multiplexing (COFDM) based Radio over Fiber (RoF) system is simulated (for different bit rates) for different modulation techniques to observe impact on system parameter [quality factor (Q)]. Influence of increasing bit rates has been observed for 2 km long linear multimode fiber. To reduce dispersion due to multimode fiber, convolutional encoder (code rate ½, generator polynomial 1338, 1718) and viterbi hard decision decoding algorithm are chosen for simulative model of COFDM based RoF system. Transmission of 32 sub-carriers with externally modulated continuous wave laser source gave satisfied results for Q values. | |
Reference | |
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Citation | |
Shikha Mahajan,Naresh Kumar,"Simulative Analysis of Influence of Modulation Techniques on COFDM based Radio over Fiber Transmission",IJMECS, vol.4, no.8, pp.1-8, 2012. |
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