Mobile/Wireless Networks, Internet, and Multimedia: Enabling Technologies for Collaborative Systems


Dr. S.R. Subramanya

University of Missouri at Rolla,





Rapid advances in computing and communications, and their synergy have been producing interesting and innovative applications.  In particular, the technologies of mobile/wireless networks, the Internet, and multimedia are beginning to have significant impacts on a variety of applications.  Collaborative systems are one class of useful applications driven by the above technologies, among other applications.  This tutorial presents the principles, techniques, and components underlying these enabling technologies.  The objective of the tutorial is to present the workings of the underlying enabling technologies of mobile/wireless networks, the Internet, and multimedia and also to make a connection into how they work together in a collaborative system. 


Tutorial Outline: 

Part I:  Mobile / Wireless Networks

1.  Introduction and Background

Enabling technologies for wireless networks; Switching techniques; Protocols. 


2.  Cellular Networks

GSM, CDMA, WCDMA; 2G AND 3G wireless networks; .Handoff strategies; Coverage and capacity; Coding and error control. 


3.  Wireless Networks

Wireless LANS (IEEE 802.11); Ad-Hoc networks.


Part II:  Internet

4.  Internet Basics

Overview; TCP/IP Protocol; Software structure; Internet addresses; Domains; Routers; Modems; DSL; Online services. 


5.  Communications on the Internet

Email; Newsgroups; Internet chat; Instant messaging; Internet telephony. 


6.  World Wide Web

Hypertext; Markup languages; Web pages; Web browsers; URLs; Interactive forms; Web servers. 


7.  Common Internet Tools

TELNET; FTP; Internet search tools; Agents; Scripting. 


8.  Wireless Internet

Internet access from Mobile/Wireless networks; Protocols for data transfer. 


Part III:  Multimedia

9.  Convergence of Different Media

Media characteristics; Requirements for storage, transmission, synchronization.


10.  Multimedia Systems

Compression; Data analysis; Indexing and retrieval; Transmission over networks. 


11.  Mobile/Wireless Multimedia

Issues, challenges, and techniques in mobile/wireless multimedia. 


12.  Multimedia on the Internet

Music and file sharing; Video on the Internet; VoIP; Multicast and MBone. 


Required Background and Intended Audience: 

Engineers, scientists and managers who want to understand the technologies and techniques of wireless/mobile networks, the Internet, and multimedia, and how they work together in typical collaborative applications.  Knowledge of basic concepts in computers, communications, networks, and algorithms are adequate. 


Tutorial Duration:  3 Hours. 


Method of Presentation: PowerPoint slides using an LCD projector.  Tutorial notes will be made available. 


Presenter:  Dr. S.R. Subramanya

Computer Science Department

University of Missouri--Rolla

Rolla, MO, USA

Email: subra@umr.edu


Instructor's Biography:

S.R. Subramanya received his Masters degree in Computer Science from Indiana University, Bloomington, and the Doctoral degree in Computer Science from George Washington University, Washington, D.C. He was the recipient of Richard Merwin memorial award at George Washington University in 1996, and Grant-In-Aid of Research award from Sigma-Xi in 1997.  He is currently an Assistant Professor at the University of Missouri–Rolla.  He has developed and been teaching courses in Image and Video Compression, Multimedia Information Systems, and Computer Security. His research involves Multimedia data indexing, and retrieval, Data Compression, and Video transmission over networks. He has presented tutorials on Multimedia Systems and Computer Security at several conferences. He has also developed course material for distance education on Multimedia Systems and Computer Security, which have been offered to employees at different Boeing facilities.  He has served as a reviewer, program committee member, and session chair of several International Conferences.  He has also been a reviewer for several journals and research grant proposals.