International Journal of Modern Education and Computer Science (IJMECS)

ISSN: 2075-0161 (Print), ISSN: 2075-017X (Online)

Published By: MECS Press

IJMECS Vol.4, No.8, Aug. 2012

Simulative Analysis of Influence of Modulation Techniques on COFDM based Radio over Fiber Transmission

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Shikha Mahajan, Naresh Kumar

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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.

Cite This Paper

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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