• Shilpa A.S., Abhiraj R., Chris Prema S, “Localization of Far Field Sources using Smart Directional Antennas”, 16th International Conference on COMmunication Systems and NETworkS, COMSNETS 2024, Pages 705-709.
• Nirbhay Tyagi, Abdul Rahim V C and Chris Prema S, “Minimizing Outage Probability and BER using Cooperative NOMA in Dual Base Station Systems”, IEEE ANTS 2023, December 17-20, 2023
• Pushkar Bhardwaj, Abdul Rahim V C and Chris Prema S, “Performance Analysis of Combined Relay Selection and Power Allocation in Relay Assisted D2D Communications”, 2023 INDICON, December 14-17, 2023.
• Abdul Rahim V C, and S. Chris Prema, "Performance Analysis of Cooperative Automatic Modulation Classification using Higher Order Statistics", 2022 National Conference on Communications (NCC), 24-27 May 2022.
• Abdul Rahim V C, and S. Chris Prema, "A Combined Spectrum Prediction and Sensing Approach for Cognitive Radios", IEEE 18th India Council International Conference (INDICON), 19-21 December 2021.
• Sneha Gem Mathew, and S. Chris Prema, "Reduction of Misdetection in Sub-Nyquist Spectrum Sensing", IEEE International Conference on Computing, Communication and Security ICCCS, 14-16th October 2020.
• Sneha Gem Mathew, and S. Chris Prema, "A Fine Spectrum Sensing Procedure based on Modulated Wideband Converter", IEEE International Conference on Communication and Signal Processing ICSSP, 4-6th April 2019.
• Ujjwala Boyapati, and S.Chris prema, "Reduction of PAPR in FBMC: A Comparative Analysis", 2018 IEEE Recent Advances in Intelligent Computational Systems (RAICS), 6-8th Dec 2018.
• Muhammed Althaf C.I, S.Chris Prema, “Covariance and Eigenvalue Based Spectrum Sensing Using USRP in Real Environment”,  COMSNET 2018, Jan 3-7 2018. 2018 10th International Conference on Communication Systems & Networks (COMSNETS)3-7 Jan. 2018.
• B.Naveen kumar, S.Chris Prema, “Noise Variance Estimation Through Penalized Least-Squares for ED-Spectrum Sensing” , International Conference on Communication Systems and Networks (ComNet) , 21-23 July 2016.
• S Chris Prema and Dara Sudha Rani, “CMFB for Spectrum Detection and Utilization in CR Applications”, International Conference on Computing and Network Communications (CoCoNet'15), 16th to 19th Dec 2015.
• S Chris Prema and Dara Sudha Rani, “ Spectrum Sensing with Programmability Granularity Band using Cosine Modulated Filter Bank for Cognitive Radio” IEEE International Conference on Communication and Signal Processing ICSSP’14,3-5th April 2015,pp 285-288.
• Dara Sudha Rani and S Chris Prema , “Spectrum Sensing in Multipath Fading Channels using Cosine Modulated Filter Bank for Cognitive Radio” IEEE conference on Electrical, Computer and Communication, March 2015,pp 1465-1468.
• S Chris Prema and Maneesha K , “Analysis of Multiprototype over Single Prototype filter for Non uniform Filter Banks”, 11thIEEE India Conference INDICON 11th-13thDec 2014.
• S Chris Prema, Thomas Kurienand Rahul Parameswaran, “Detection of Surface and Subsurface Features Using GPR through Signal Processing for Autonomous Landing and Varied Applications” , International Conference on Advances in Computing, Communications and Information Sciences, ACCIS-14,June 26th-28th,2014.
   
• Maneesha K and S Chris Prema , “A Channel Combiner approach for the design of Near Perfect Reconstruction Non Uniform Filter Banks”,IEEE International Conference on Communication and Signal Processing ICSSP’14,3rd-5thApril 2014.
• S. Chris Prema, Meena Srinivasan, S. Annadurai, “Estimation of Signal Variance By Homogeneous Arbitrarily Shaped Windows For Wavelet Based Image Denoising”, Proceedings of the International Conference on Resource Utilization and Intelligent Systems. Kongu Engineering. College, Perundurai, Erode, T.N., India, January 2006.
• Meena Srinivasan, S. Chris Prema, S. Annadurai, “Improved MAP Estimation of Variance Through Arbitrary windows For Wavelet Denoising”, IEEE Indicon 2005 Conference, IIT,Chennai, December 2005.

Project Guided:

• About 5 UG projects in digital image processing
• Multiband spectrum sensing under noise uncertainity
• Wideband spectrum sensing using sub-nyquist sampling
• Filter bank multicarrier system: PPN FBMC and FS FBMC
• Noise variance estimation for spectrum sensing

• S. Chris Prema, K.S. Dasgupta, a book chapter on “Multirate Systems in Cognitive Radio” in the book titled “Advances in Multirate Systems” Springer International Publishing, Print ISBN: 978-3-319-59273-2, Electronic ISBN: 978-3-319-59274-9.

Completed project:

• Autonomous Landing System using Ground Penetrating Radar
  Activity No:IIST/ RDP/27/2011/AV (2011 to 2014)

On going projects:

• Low Complexity Modulated Wideband Converter for sub-Nyquist Wideband Spectrum Sensing
  Activity No:2020AVFSTK014
• Interference analysis and co-existence studies between GSO and NGSO satellite systems
  IIST/SAC/11/2021/23
• Applications of Fractional Order Calculus to Biomedical Signal Processing
  DST/SERB- CRG/2022/003441