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Date: Mon, 25 Nov 1996 20:27:18 GMT
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<!DOCTYPE HTML PUBLIC "-//W3O//DTD W3 HTML 2.0//EN"><!Converted with LaTeX2HTML 95 (Thu Jan 19 1995) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds ><HEAD><TITLE> Daniel J. Duchamp</TITLE></HEAD><BODY><meta name="description" value=" Daniel J. Duchamp"><meta name="keywords" value="main"><meta name="resource-type" value="document"><meta name="distribution" value="global"><P> <BR> <HR><!WA0><A NAME=tex2html210 HREF="http://www.cs.columbia.edu/info/research-guide/html/node12.html"><!WA1><IMG ALIGN=BOTTOM ALT="next" SRC="http://www.cs.columbia.edu/info/research-guide/html/icons//next_motif.gif"></A> <!WA2><A NAME=tex2html208 HREF="http://www.cs.columbia.edu/info/research-guide/html/main.html"><!WA3><IMG ALIGN=BOTTOM ALT="up" SRC="http://www.cs.columbia.edu/info/research-guide/html/icons//up_motif.gif"></A> <!WA4><A NAME=tex2html202 HREF="http://www.cs.columbia.edu/info/research-guide/html/node10.html"><!WA5><IMG ALIGN=BOTTOM ALT="previous" SRC="http://www.cs.columbia.edu/info/research-guide/html/icons//previous_motif.gif"></A> <!WA6><A NAME=tex2html212 HREF="http://www.cs.columbia.edu/info/research-guide/html/node1.html"><!WA7><IMG ALIGN=BOTTOM ALT="contents" SRC="http://www.cs.columbia.edu/info/research-guide/html/icons//contents_motif.gif"></A> <BR><B> Next:</B> <!WA8><A NAME=tex2html211 HREF="http://www.cs.columbia.edu/info/research-guide/html/node12.html"> Steven K. Feiner</A><B>Up:</B> <!WA9><A NAME=tex2html209 HREF="http://www.cs.columbia.edu/info/research-guide/html/main.html"> Faculty Research Guide</A><B> Previous:</B> <!WA10><A NAME=tex2html203 HREF="http://www.cs.columbia.edu/info/research-guide/html/node10.html"> Mukesh Dalal</A><BR> <HR> <P><H1><A NAME=SECTION00060000000000000000> Daniel J. Duchamp</A></H1><P><P><P><!WA11><A HREF="http://www.cs.columbia.edu/mcl">Mobile Computing Laboratory</A><P><P><P>I work in the fields of ``mobile computing'' and ``operating systems.''<P>The general challenge is how best to build systems of small, wireless,mobile computers. Current efforts focus on building ``reconfigurabledistributed services.'' The reconfigurable distributed services thatwe have built so far are re-implementations of standard services(e.g., file service, X11 window service, IP) employing new algorithmsinternally that facilitate the following:<UL><LI> operation in spite of disconnection and/or intermittent connection<P><LI> efficient use of limited bandwidth (wireless links current operateonly at kilobit-to-megabit speeds)<P><LI> dynamic service location<P><LI> dynamic load balancing (to improve latency and throughput)</UL><P>I will continue to work on mobile computing during the next few years,focusing on these new projects:<UL><LI> making applications aware of, and able to react to, changes in theirlocation<P><LI> techniques for automatically and dynamically re-partitioning thefunction of a program into a client portion (running on a mobilecomputer) and a server portion (running on a stationary``infrastructure'' machine)<P><LI> exploitation of low power, solid state non-volatile storagetechnologies, such as flash EEPROM -- these devices are especiallywell suited to portable computers<P><LI> a new architecture for distributed systems supporting mobility inwhich an intermediary is interposed between client and server; thepurpose of the intermediary is to intelligently filter all but themost essential data traveling from the infrastructure out to themobile host</UL><P><BR> <HR><P><ADDRESS><I>Sabah S. al-Binali <BR>Fri Sep 22 16:39:42 EDT 1995</I></ADDRESS></BODY>⌨️ 快捷键说明
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