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Shikha Mahajan

Work place: Department of Electronics & Communication Engineering, Panjab University, Chandigarh, India

E-mail: shikhashikha2486@gmail.com

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Research Interests: Computer Networks, Network Architecture, Network Security

Biography

Shikha Mahajan is currently doing M.E from University Institute of Engineering and Technology, Panjab University, Chandigarh. She has received her B.Tech degree from Punjab Technical University, Jalandhar, India. Her interests include Radio over Fibers and Computer Networks.

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

By Shikha Mahajan Naresh Kumar

DOI: https://doi.org/10.5815/ijmecs.2012.08.01, Pub. Date: 8 Aug. 2012

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.

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