Type of Document Master's Thesis Author Fleming, Todd B. URN etd-0521318109613220 Title Improving the Performance of the world Wide Web over Wireless Networks Degree Master of Science Department Electrical and Computer Engineering Advisory Committee
Advisor Name Title Davis, Nathaniel J. IV Gray, Festus Gail Midkiff, Scott F. Committee Chair Keywords
- wireless networks
Date of Defense 1996-11-04 Availability unrestricted AbstractThe World Wide Web (WWW) has become
the largest source of Internet traffic, but it
was not designed for wireless networks.
Documents with large inline images take a
long time to fetch over low-bandwidth
wireless networks. Radio signal dropouts
cause file transfers to abort; users have to
restart file transfers from the beginning.
Dropouts also prevent access to documents
that have not yet been visited by the user. All
of these problems create user frustration and
limit the utility of the WWW and wireless
In this work, a new Wireless World Wide
Web (WWWW) proxy server and protocol
were developed that address these problems.
A client based on NCSA Mosaic connects to
the proxy server using the new protocol,
Multiple Hypertext Stream Protocol
(MHSP). The proxy prefetches documents to
the client, including inline images. The proxy
also reduces the resolution of large bitmaps
to improve performance over slow links.
MHSP provides the ability to resume file
transfers when the link has been broken then
The WWWW system was tested and
evaluated by running script-controlled clients
on different emulated network environments.
This new system decreased document load
time an average of 32 to 37 percent,
depending on network configuration.
Filename Size Approximate Download Time (Hours:Minutes:Seconds)
28.8 Modem 56K Modem ISDN (64 Kb) ISDN (128 Kb) Higher-speed Access etd.pdf 156.24 Kb 00:00:43 00:00:22 00:00:19 00:00:09 < 00:00:01
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