Context-Aware Mobile Phone Based City Guide

Ayenew, Yifru Argaw (2013) Context-Aware Mobile Phone Based City Guide. Masters thesis, Addis Ababa University.

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In order to provide a context aware location based service to a mobile phone user, the first thing is to know the exact location and context of the user. To know the exact location of the user there are different positioning techniques. Some of these techniques need support of Telecom provider and other methods require an embedded GPS. But the cost of most smart cell phone that has GPS is expensive and economically not affordable for most people in the country. To overcome this problem we propose the context-aware LBS architecture that reads and process the location and context information of a user using ordinary cell phones. The architecture is composed of the client mobile device and the context aware LBS server. The client mobile device end consists of components responsible for reading the location and context data from the client cell phone. The context aware LBS server side consists of components responsible for processing the location and context data that comes from client cell phone and make decisions based on different information stored in the server. The LBS system uses mathematical model of lateration methods based on the signal strength and cell-ID received from telephone cell tower which all types of mobile phones can read. To evaluate the validity of the proposed architecture, we developed a prototype that implements the core components of the proposed architecture. The implementation has been evaluated with a sample services areas between localities in Addis Ababa named as Arat Kilo and Sidist Kilo. Results from the experiment show the proposed architecture is promising to provide a context aware city guide services for users including those using ordinary (non-smart) phones without GPS.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Location Based Service, Context-Aware, Trilateration, Cell-ID, Received Signal Strength Indication
Subjects: G Geography. Anthropology. Recreation > GA Mathematical geography. Cartography
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
T Technology > T Technology (General)
Z Bibliography. Library Science. Information Resources > ZA Information resources > ZA4050 Electronic information resources
Divisions: Africana
Depositing User: Selom Ghislain
Date Deposited: 10 Sep 2018 09:11
Last Modified: 10 Sep 2018 09:11

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