Demo of wireless video transfer using 2x2 MIMO link, from inside a human-body-phantom to an on-body receiver

This video demostrates wireless video transmission from a capsule placed inside a liquid human-body-phantom to a receiver located outside of this phantom. We show and discuss how the use of a 2x2 MIMO link improves link quality compared to traditional SISO links.
We designed the 2x2 MIMO antenna system as well as the test setup, in order to enable transmitting video data from a capsule embedded inside the the human body, wirelessly to a receiver placed outside the body. The MIMO link in this test setup is realised with software-defined-radios handling the video transmission and reception, and especially designed antennas for the capsule transmitter and for the on-body receiver. The target application is wireless gastroendoscopy, i.e. medical applications that require high-quality video images from inside the gastrointestinal tract of a patient. We hence demonstrate one promising practical implementation of a MIMO antenna system that enables reliably high data rates needed to ensure video transmission.