5 papers
Quantization Limitations of Leakage Suppression in Self-Calibrating Monostatic Integrated Sensing and Communication MIMO Systems
Jan Adler, Florian Gast, Gerhard P. Fettweis +1
Power leaking directly from transmitting into receiving radio-frequency chains is a key challenge in the realization of monostatic sensing applications with multi-antenna communica…
Experimental Comparison of Local and Over-the-Air Phase Calibration for MIMO Arrays
Carl Collmann, Ahmad Nimr, Gerhard Fettweis
Communication performance and channel estimation accuracy in MIMO systems are known to be limited by hardware impairments. Specifically, the presence of phase impairments, such as…
From Coverage to Sensing: ISAC meets FR3
Ahmad Bazzi, Florian Gast, Fan Liu +3
Future 6G systems are expected to exploit upper midband spectrum in frequency range 3 (FR3) not only for high throughput communications, but also for sensing services such as local…
Energy-Efficient Mobile Communications using an Adaptive Gearbox-PHY under Hardware Constraints
Florian Gast, Meik Dörpinghaus, Gerhard Fettweis
Future mobile networks must achieve substantial improvements in energy efficiency to offset the anticipated traffic growth. Despite this requirement, many discussions regarding phy…
Estimating PLL Phase Noise Parameters from Measurements for System-Level Modeling
Carl Collmann, Ahmad Nimr, Gerhard Fettweis
In current MIMO mobile communication systems, phase noise can significantly impair performance. To allow for compensation of these impairments, accurate phase noise modeling is nec…