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Broadcast of financial information : How to broadcast web information to wireless users
KTH, Superseded Departments, Teleinformatics. (CCSlab)
1996 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Mobile or wireless information retrieval is an area that is expected to increased dramatically in near future. In order to meet the demand for broadband of content, and to learn how these systems can used for publishing, Bonnier is participating in the On the Move Project. But, the On the Move project intends to use UMTS. As this systems is not yet available, Bonnier has initiated a cooperation with Teracom in the MEMO project. The MEMO project will develop a common platform for an wireless asymmetric communication system that will consist of a broadband downstream channel (DAB) and narrowband upstream channels (GSM). They have also develop a framework of an architecture and a interface to the DAB channel for this purpose.

Wireless asymmetric communication systems utelise the nature of an information retrieval session very well, because the request from the clients are very modest regarding demanded bandwidth in contrast to the server response which usually demand much bandwidth for downloading the requested information to the client.

In my thesis project I have developed and implemented three different software's that will fit in the MEMO architecture and offer the user the specified functionality. That is, the user shall be able to retrieve information in broadcast and/or on-demand mode. The software's developed is a client part which will be running on the mobile host, a server software which will serve the client with the requested information, and a broadcast software which enables the content provider to broadcast specific content in their service. The broadcast channel is developed by Teracom.

The result that this project has achieved is, first some measurement on a model of the system that shows the benefits with broadcast mode in the system. The test also showed that introduction of caching in the system considerably reduce the latency for the client in retrieving information. Second, their have been some needs outlined that the content provider have on these kinds on systems, and how the content provider shall construct a service that are intended for these kinds of systems.

Place, publisher, year, edition, pages
1996. , 54 p.
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-98042OAI: diva2:534639
Subject / course
Educational program
Master of Science in Engineering - Electrical Engineering
1996-11-29, Seminar room "Telegrafen", Isafjordsgatan 22, Kista, 11:00 (English)
Available from: 2012-06-18 Created: 2012-06-18 Last updated: 2015-09-01Bibliographically approved

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