A portable medical system using real-time streaming transport over 3G wireless networks

Abstract _The paper proposes architecture for the software
implementation of a multimedia, tele-medicine system.
It considers video streaming from both video servers in
hospitals and webcams localized to patients. It also consider
stransmission of vital bio-signs, such as heart rates and
blood pressure, etc. All these data are transmitted over a
3G-wireless communication system to various client devices
(hand-held devices, such as PDAs) used by physicians
and nurses. Our video codec is a software implementation of
the MPEG-4 standard, compression rate at about 1/24 sizes
suited for available transmitting bandwidth. Moreover, our
design, which also integrates the processing of heart sounds,
supports a 44.1 KHz sampling rate and a 16-bit representation
required about 11 kbps bandwidth. At the same time,
in the streaming process, we propose a congestion control
scheme to reduce packet losses.