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Mobile internet router-2
KTH, Superseded Departments, Teleinformatics. KTH, School of Information and Communication Technology (ICT). (CCSlab)
1997 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In a mobile environment with more than one communication link available, such as in the dialup GSM/Short Message Service (SMS) case, what can be gained by doing intelligent routing based on the content of the traffic?

This paper starts with looking at dialup links using GSM and continues with a description of SMS. Some examples of how to combine dialup GSM and SMS are also discussed. To effectively use SMS, we need to be able to send, receive, and check for short messages at all times. However, this is not possible when a GSM dialup link is active as there is only one connection between the computer and the handset. Two approaches to solve this problem are presented, first using a modified serial port driver and the second using an SNMP agent in the mobile phone.

The source code for a program sending and receiving short messages and a program logging traffic on a serial port are also included, together with the source code for the modified serial port driver.

Place, publisher, year, edition, pages
1997. , 96 p.
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-96667OAI: diva2:531947
Subject / course
Educational program
Master of Science in Engineering - Electrical Engineering
1997-05-09, Seminar room "Telegrafen", Isafjordsgatan 22, Kista, 15:00 (English)
Available from: 2012-06-14 Created: 2012-06-08 Last updated: 2013-09-09Bibliographically approved

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Lundeberg, Mikael
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