Efficient Algorithms and Framework for Bandwidth Allocation, Quality-of-Service Provisioning and Location Management in Mobile Wireless Computing Page: 1
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Sen, Sanjoy Kumar, Efficient Algorithms and Framework for Bandwidth
Allocation, Quality-of-Service Provisioning and Location Management in Mobile
Wireless Computing Doctor of Philosophy (Computer Science), December 1997,
163 pp, 9 tables, 47 illustrations, bibliography, 55 titles.
The fusion of computers and communications has promised to herald the age
of information super-highway over high speed communication networks where the
ultimate goal is to enable a multitude of users at any place, access information from
anywhere and at any time. This, in a nutshell, is the goal envisioned by the Personal
Communication Services (PCS) and Xerox's ubiquitous computing. In view of the
remarkable growth of the mobile communication users in the last few years, the radio
frequency spectrum allocated by the FCC (Federal Communications Commission) to
this service is still very limited and the usable bandwidth is by far much less than the
expected demand, particularly in view of the emergence of the next generation wireless
multimedia applications like video-on-demand, WWW browsing, traveler information
systems etc. Proper management of available spectrum is necessary not only to
accommodate these high bandwidth applications, but also to alleviate problems due
to sudden explosion of traffic in so called hot cells.
In this dissertation, we have developed simple load balancing techniques to cope
with the problem of tele-traffic overloads in one or more hot cells in the system. The
objective is to ease out the high channel demand in hot cells by borrowing channels
from suitable cold cells and by proper assignment (or, re-assignment) of the channels
among the users. We also investigate possible ways of improving system capacity by
rescheduling bandwidth in case of wireless multimedia traffic. In our proposed scheme,
traffic using multiple channels releases one or more channels to increase the carried
traffic or throughput in the system. Two orthogonal QoS parameters, called carried
traffic and bandwidth degradation, are identified and a cost function describing the
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Sen, Sanjoy Kumar. Efficient Algorithms and Framework for Bandwidth Allocation, Quality-of-Service Provisioning and Location Management in Mobile Wireless Computing, dissertation, December 1997; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc278885/m1/2/: accessed December 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .