Exploiting Infrastructure Resources to support Mobile Computing. CS-630 Distributed Mobile Systems Srividya, Ramkishore, Prakash and Kartik. Motivation. Virtual Network Computing Pebbles PalmVNC. Objectives. Discover a desktop on a wired LAN Transport the display of the PDA to desktop
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Exploiting Infrastructure Resources to support Mobile Computing
CS-630 Distributed Mobile Systems
Srividya, Ramkishore, Prakash and Kartik
Phase 1:Simple Advertisement Protocol
Phase 2:Transport of Display
-DDB to DIB format
Phase 3- Transport of Control
-Trap mouse movement and keyboard events.
Virtual Network Computing
- only Pixel function used in device driver
- compression is application specific
- directly deals with frame buffer
PDA Display porter
- uses pixel and line functions in device drivers.
- run-length coding
- common APIs
“RFB Protocol” Tristan Richardson, Kenneth. R. Wood , Cambridge version3.3 Jan 1998 revised July 1998
“Bandwidth usage Analysis of Service Location protocol” Michael Barbeau , Carleton University, Ottawa, Canada.
“Borland C++ 4.0 programming for Windows” Paul Yao
“Fundamental Challenges in Mobile Computing” Proc.PDOC’96 Philadelphia , USA 1996
Talk: “Using handheld computers and PCs together” (an overview of Pebbles project)
“Differential X Protocol Compressor”- http”//www.vigor.nu/dxpc/