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Proceedings Paper

Experimental high-speed network
Author(s): Kevin M. McNeill; William P. Klein; Richard Vercillo; Yasser H. Alsafadi; Miguel V. Parra; William J. Dallas
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Paper Abstract

Many existing local area networking protocols currently applied in medical imaging were originally designed for relatively low-speed, low-volume networking. These protocols utilize small packet sizes appropriate for text based communication. Local area networks of this type typically provide raw bandwidth under 125 MHz. These older network technologies are not optimized for the low delay, high data traffic environment of a totally digital radiology department. Some current implementations use point-to-point links when greater bandwidth is required. However, the use of point-to-point communications for a total digital radiology department network presents many disadvantages. This paper describes work on an experimental multi-access local area network called XFT. The work includes the protocol specification, and the design and implementation of network interface hardware and software. The protocol specifies the Physical and Data Link layers (OSI layers 1 & 2) for a fiber-optic based token ring providing a raw bandwidth of 500 MHz. The protocol design and implementation of the XFT interface hardware includes many features to optimize image transfer and provide flexibility for additional future enhancements which include: a modular hardware design supporting easy portability to a variety of host system buses, a versatile message buffer design providing 16 MB of memory, and the capability to extend the raw bandwidth of the network to 3.0 GHz.

Paper Details

Date Published: 8 September 1993
PDF: 5 pages
Proc. SPIE 1899, Medical Imaging 1993: PACS Design and Evaluation, (8 September 1993); doi: 10.1117/12.152891
Show Author Affiliations
Kevin M. McNeill, Univ. of Arizona (United States)
William P. Klein, Univ. of Arizona (United States)
Richard Vercillo, Univ. of Arizona (United States)
Yasser H. Alsafadi, Univ. of Arizona (United States)
Miguel V. Parra, Univ. of Arizona (United States)
William J. Dallas, Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 1899:
Medical Imaging 1993: PACS Design and Evaluation
R. Gilbert Jost, Editor(s)

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