A CS395T Course Project MobileComputing &

WirelessNetworks

Spring 2001C

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• Instructo

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(ygz@

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Key Design / Approach Component-based technologies. Multimedia Services Application:

–Multimedia Client: Plays multimedia files from Service URLs using JMF.

–Multimedia Service Provider: Provides Service URLs to clients, interfaces to user database.

–Reggie (The Service Lookup by Sun Microsystems): Keeps track of available services.

–User Database (Microsoft Access connected to Service Provider via ODBC and JDBC)

New Ideas A Jini-based Multimedia Services

Application designed for ad hoc wireless systems.

Use of multicast-based service discovery protocols for multimedia services in ad hoc wireless networks.

–Adapt to changes in bandwidth in wireless overlay networks.

–Provide value-added services to roaming users with minimal configuration.

Integrated user accountability for services.

Service Discovery in Wireless Networks

Results / Lessons Learned Service discovery is crucial in emerging

packet-based wireless technologies (3G/4G, Bluetooth)

Lessons learned:–Holding users accountable for using wireless

bandwidth for value-added services is necessary.

–Key challenge: Integrating various enabling technologies (Jini, JMF, JDBC, etc.)

Project team: Dogu Arifler, Vivek SharmaURL: http://www.ece.utexas.edu/~arifler/CS395T/index.htm

Multimedia Provider

Java-based Client GUI

Microsoft Access

Lookup Service

Multicast in a Jini-enabled wireless network

SQL, JDBC

Service URL