A portable medical system using real-time streaming transport over 3G wireless networks |
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Authors: | Yung-Sung Huang B C Chieu |
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Affiliation: | (1) Department of Electrical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan |
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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 considers transmission 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. |
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Keywords: | |
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