I was recently asked to give an introduction lecture on ISAC and developed a brand new presentation for that purpose. I have now recorded a video based on that material. The lecture introduces the basic principles of ISAC, highlights similarities and differences between radar and communication systems, and discusses how and why sensing capabilities should be integrated into future cellular networks, including 6G.
The lecture covers:
- Fundamentals of wireless sensing and communication
- Classical radar features: range, velocity, and angle estimation
- Comparison of radar and communication propagation models
- Key differences between radar and communication systems
- Levels of integration in ISAC (site, hardware, and signal sharing)
- Potential internal and external use cases for ISAC
- Detailed examples of range, velocity, and angle estimation
- Trade-offs in waveform design, including the integration into OFDM systems
How is technology transforming industries and everyday life?
Radar information gives a perception to networks that can be used in applications, particularly for autonomous operation of factories or enhancing the operation of cities (e.g., measure vehicle traffic to steer traffic lights and wireless service provisioning), without requiring dedicated sensors – making the technology massively more available.
Hi professor,
I have this question. For mmWave signals transmitted by BS, it impinges upon small point-like objects in the enviornment. In this condition, scatterering happens or reflection happens?
If the objects are point-like, then they act as scatterers.
The radar range equation is quite useful when studying each individual path: https://en.wikipedia.org/wiki/Radar#Radar_range_equation
The size of the object factors into the radar cross section.