High-Speed Wireless Networks: From Signal Degradation to Reliable 6G Solutions

#6G #OTFS, #AFDM, #Doppler, #OFDM, #Wireless-Communications, #High-Mobility #ofdm #application #connected-vehicles #communications
Share

Why do fast-moving vehicles experience signal drops? Reliable connectivity for high-mobility users, such as high-speed trains, drones, connected vehicles and satellites, is a key challenge for next-generation wireless systems. At high velocities, Doppler shifts and multipath propagation make the channel change rapidly and degrade conventional transmission.

 

This lecture intuitively explains these effects and shows how they cause inter-carrier interference in OFDM, the technique behind 4G and 5G. It then introduces the delay–Doppler view of the wireless channel and two emerging 6G waveforms built on it, OTFS and AFDM. The session concludes with practical applications and research opportunities for students in wireless communications.

 

What you will learn:

- What the Doppler effect is and how it affects wireless signals

- How 4G and 5G transmit data, and why high speed causes problems

- What multipath (signal echoes) is and how it affects communication

- The main idea behind next-generation 6G waveforms

- Where these technologies are used, and how students can get involved


  Date and Time

  Location

  Hosts

  Registration


  • Add_To_Calendar_icon Add Event to Calendar

Loading virtual attendance info...

  • Contact Event Hosts

  • For inquiries, please contact: Njood Alfawaz – Head of Organizational Management, IEEE QU Student Branch

    Email: Njood.ahmed1234@gmail.com

  • Co-sponsored by Saudi Arabia Section

  Speakers

Dr. Sobia baig of Qassim University

Topic:

High-Speed Wireless Networks: From Signal Degradation to Reliable 6G Solutions

This talk explains why wireless signals struggle at high speeds, covering the Doppler effect, multipath, and inter-carrier interference in OFDM (4G/5G), and introduces emerging 6G waveforms, OTFS and AFDM, along with their applications and research opportunities for students.

Biography:

Prof. Dr. Sobia Baig is a Professor in the Department of Electrical Engineering at Qassim University and an IEEE Senior Member. She is affiliated with several IEEE technical councils, including the IEEE Sensors Council, IEEE Systems Council, IEEE Nanotechnology Council, IEEE Council on RFID, IEEE Biometrics Council, and IEEE Council on Superconductivity, as well as IEEE SIGHT.

Email:




Agenda

1. Opening and speaker introduction

2. The Doppler effect and multipath: why signals struggle at high speed

3. How 4G/5G (OFDM) transmit data and the challenges at high mobility

4. Next-generation 6G waveforms: the delay–Doppler view, OTFS and AFDM

5. Applications and research opportunities for students

6. Q&A and closing


Organized by IEEE Qassim University Student Branch, in collaboration with the Deanship of Students Affairs – Qassim University.