Intelligent Reflecting Surfaces
Intelligent Reflective Surfaces: Transmission Channel Shaping
Modeling of Transmit Signal Interactions with IRSs
Characterization of IRS’ impact on reflected signal for
- Near-field:
- Far-field:
Optimization of Resource Allocation
Tasks:
- Generate different codebooks at IRS
- Beamforming at the base station (TX)
- Estimate current user (RX) direction
- Predict next user direction
- Select IRS codeword
Example: Maximize rate of mobile user with codebook approach
Prototyping and Testing New Ideas
- Prototype: To be built jointly with Chair of High Frequency Technology and Chair of Technical Electronics
- IRS: 24×24 reflectors at 5.6GHz
- Limitation/Challenges: Adapting/optimizing algorithms for specific hardware
- Future Research: Model hardware inaccuracies
- Extensions: Integrate into MIMO testbed
- Goal: Test and validate our algorithms and communication concepts