- Ajay Kumar Gautam, “Dependence Of Cutoff Values on Pitch Angle of Circular Helically Cladded Optical Waveguide At Its Core Cladding Interface” 2nd IEEE International Conference on Emerging Technological Trends in Electronics, Communication and Networking, 2014 - (ET2ECN 2014), 26-27 December 2014 in SVNIT, Surat, India.
- Ajay Kumar Gautam, “Helical Windings on Circular Optical Waveguide and Induced Effects on its Dispersion Curve” International Journal of Electronics, Electrical and Computational System (IJEECS), Vol. 3, Issue 6, pp. – 44 – 54,August 2014.
- Ajay Kumar Gautam, "Coded OFDM Technique for Digital Terrestrial Television – Transmission, Error Correction & Issues" 2nd National Conference on Recent Advances on Technology and Engineering (RATE-2013).
- Ajay Kumar Gautam, “Impact of Various Mobility Model and Judgment for Selecting Mode of Network in Different Mobility Situation for Mobile Ad-Hoc Network (MANET)” IEEE International Conference on "Emerging Technology Trends in Electronics, Communication and Networking (ET2ECN-2012), SVNIT Surat, December 2012.
- Ajay Kumar Gautam, “Design and Simulation of a Broadband Parallel Coupled Microstrip Line Band-pass Filter”, International Conference on Electronic Communication & Instrumentation 2012, pp – 174-177.
- Ajay Kumar Gautam, “OFDM System Implementation-FFT/IFFT Stage and Issues”, International Conference on Electronic Communication & Instrumentation 2012, pp -178-183.
- Ajay Kumar Gautam, “Modelling Dispersion Characteristics of Circular Optical Waveguide with Helical Winding–Comparison for Different Pitch Angles” International Journal of Optics & Photonics (IJOP) Vol. 5 No. 1, pp – 35 -40, Winter Spring, 2011.
- Ajay Kumar Gautam, "Effect of Helical Pitch Angles on Dispersion Characteristics of Circular Optical Waveguide Having Helical Windings on Core - Cladding Interface", International Journal of Advanced Engineering Technology, Vol. II, Issue I, pp. - 283-291, July-September, 2011.
- Ajay Kumar Gautam, "Dispersion & Cut-off Characteristics of Circular Helically Cladded Optical Fiber", International Journal of Advanced Engineering Technology, Vol. II, Issue III, pp. - 297-305, July-September, 2011.
- Ajay Kumar Gautam, "Analytical Study of Helically Cladded Optical Waveguide with Different Pitch Angles", International Journal of Advanced Engineering Technology, Vol. II, Issue I, pp. - 144-153, January-March, 2011.
- Ajay Kumar Gautam, "Dispersion Characteristic of Optical Waveguide with Helical Winding for Different Pitch Angle", National Conference on Electronics, Communication & Instrumentation, April, 2-3, 2010.