At Lund University, the Large Intelligent Surface (LIS) testbed provides means to explore extreme use of the spatial dimension in wireless applications. As part of a large ELLIIT infrastructure investment, LIS became LISA (LISA – Large Intelligent Surface testbed with remote Access), a platform that can be accessed remotely and used by all ELLIIT researchers.
LISA provides a remote-access interface to a Large Intelligent Surface (LIS) testbed at Lund University. The LIS testbed provides means to explore extreme use of the spatial dimension in wireless applications along the lines of Massive MIMO, but with a much higher antenna count and thereby a much higher spatial resolution. The testbed operates in the sub-6 GHz frequency range and provides software-defined high-performance digital co-processing of signals to and from each antenna element, making it possible to perform measurements as well as real-time test of algorithms for, e.g., communication, over-the-air sensing, and localization. Ground-truth measurement systems are used to calibrate spatial measurements and experimental platforms are remotely controllable. Exploiting the spatial dimension can give large gains in spectral efficiency, localization precision, link reliability, etc., while substantially reducing transmitted energy. This makes LIS technology a prime candidate for future wireless systems, such as 6G and beyond.
Ove Edfors (LU)
Fredrik Tufvesson (LU)
Liang Liu (LU)