Geetha G.

Work place: College of Engineering Guindy/Department of Electronics and Communication Engineering, Chennai-600 025, India



Research Interests: Microwave Technology


Geetha G. has completed her Ph.D. degree in Optical Communication from the Department of Electronics and Communication Engineering, College of Engineering Guindy, Anna University, Chennai. She is currently a Professor in the Department of Electronics and Communication Engineering, Anna University, Chennai. Her research interests are satellite communications, Radio Frequency, microwave engineering, optical technology and planar antennas.

Author Articles
DAPSK – OFDMA PON Based Heterogeneous Optical Network

By Priyadharshini R. Geetha G.

DOI:, Pub. Date: 8 Dec. 2023

The broadband access networks require suitable differential modulation techniques that can provide better performance in real-time fading channels. A heterogeneous optical access network adopting spectrally efficient DAPSK – Orthogonal Frequency Division Multiple (OFDMA) - Passive Optical Network (PON) is proposed and simulated. The performance of the proposed heterogeneous network is analyzed in terms of received Bit Error Rate (BER) and spectral efficiency. The results show that 64 DAPSK – OFDMA over the proposed architecture achieves a better spectral efficiency of about 1.062 bps/Hz than 64 QAM – OFDMA with less degradation in error performance.

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