  Wireless capsule endoscopy (WCE) has been widely adopted as complementary to
traditional wired gastroendoscopy, especially for small bowel diseases which
are beyond the latter's reach. However, both the video resolution and frame
rates are limited in current WCE solutions due to the limited wireless data
rate. The reasons behind this are that the electromagnetic (EM), radio
frequency (RF) based communication scheme used by WCE has strict limits on
useable bandwidth and power, and the high attenuation in the human body
compared to air. Ultrasound communication could be a potential alternative
solution as it has access to much higher bandwidths and transmitted power with
much lower attenuation. In this paper, we propose an ultrasound communication
scheme specially designed for high data rate through tissue data transmission
and validate this communication scheme by successfully transmitting
ultra-high-definition (UHD) video (3840*2160 pixels at 60 FPS) through 5 cm of
pork belly. Over 8.3 Mbps error free payload data rate was achieved with the
proposed communication scheme and our custom-built field programmable gate
array (FPGA) based test platform.
