Data organization for data broadcasting in mobile computing
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Date
2007
Authors
Rozaida, Mohd Darus
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Abstract
The advances in mobile devices and wireless communication techniques have enabled
anywhere, anytime data access. In Broadcast Disks, one of the important components
of this environment is the server with broadcasting capabilities. Data are fetched from
the server and being broadcasted to the air. Mobile users keep listening to the air and
catch the data that they maybe interested.
There are many strategies proposed for efficient broadcast delivery such as
disk broadcasting (Chang & Yang, 2002; Acharya, 1998). Disk broadcasting approach
has developed an algorithm which arrange the sequence order of data to be
broadcasted. This generate the sequence of data with the policy where data that
frequently accessed are called “hot” and less frequently access are called “cold”.
However, based on disk broadcasting approach, some broadcast sloted in the
broadcast are empty in which we referred as unused slots. The unused slots are
considered as a waste of bandwidth thus increasing the client’s waiting time. Therefore,
we propose a new data organization for the server which is to eliminate the unused
slots in the broadcast and will fill them with data selected according to their popularity.
We show by case study and simulation that our data organization scheme has resulted
bandwidth utilization and reducing the clients’ average waiting time.
Description
Master
Keywords
Industrial technology , Mobile computing