The Department of Electronics and Communication Engineering organized a Two-Day Workshop on “OFDM Demystified & Sensing Assisted 6G Communication” for III Year ECE Students (30) on 11-12 April 2025 in DSP Lab, II Floor, AB-I. The primary objective of the workshop was to equip III Year ECE students with the necessary skills to introduce fundamentals of wireless communication and OFDM in modern networks and provide hands-on experience with OFDM using MATLAB/Python and explore emerging 6G technologies. Mr. Mahesha Y, Senior Engineer at Life Signals Private Limited and Mr Anoop C V Research scholar ,NIT Calicut, Bengaluru were the resource persons for the workshop. Dr Dayakshini, Head of the Department of ECE motivated the participants by emphasizing the importance of the workshop and its significant impact on their careers.
Day 1:
Mr Mahesha Y gave an insights on fundamentals of wireless communication and its importance and discussed the following topics
Google Colab Introduction: Participants were introduced to Google Colab—its features, usage, and functionalities for signal processing and machine learning applications.
• Basic Signal Operations: Participants plotted sine waves and learned how to perform addition and multiplication of signals using Python.
• OFDM System Overview: A comprehensive explanation of the OFDM communication system was provided.
• Modulation Techniques: Concepts such as BPSK, QPSK, and 16-QAM were discussed along with their constellation diagrams, followed by practical implementation.
• FFT and IFFT: The roles and advantages of FFT and IFFT in OFDM were explored.
• AWGN: The concept of Additive White Gaussian Noise was explained, including its significance in modeling communication channel noise.
• ISI and Cyclic Prefix: The problem of Inter-Symbol Interference and the use of cyclic prefix (guard interval) to mitigate it were discussed.
• Current Trends: The resource person shared insights on trends and career opportunities in OFDM and 6G technologies.
On Day 2 Mr Anoop C V emphasized the importance of advanced signal processing and AI-assisted communication techniques along with the discussion of following topics
· Grayscale Image Generation: Participants learned how to generate and manipulate grayscale images using Python in Google Colab.
· PCA (Principal Component Analysis): Demonstrated and implemented PCA for image dimensionality reduction.
· Constraint Optimization: Techniques in mathematical optimization were explained and implemented.
· Kalman Filter: Object detection using the Kalman filter was demonstrated.
· Reinforcement Learning: An introduction to reinforcement learning principles was provided.
· YOLO (You Only Look Once): Discussed its application in object detection, especially in real-time systems.
· Vehicle Platooning: A futuristic project idea involving multiple vehicles communicating in coordination using sensing-assisted technologies was proposed.
The workshop was coordinated by Ms Jayalakshmi K P, Ms K Aarya Shri, and Ms. Priya Miranda, Assistant Professors in the Department of ECE.
