Architecture and Algorithms for Scalable Mobile QoS
Bahareh Sadeghi · Rice Research Repository (Rice University) · 2000
Supporting Quality of Service is an important objective for future mobile systems, and requires resource reservation and admission control to achieve.In this thesis, we introduce a scalable scheme to admission control termed Virtual Bottleneck Cell.Our approach is designed to scale to many users and hand-os, while simultaneously controlling \hot spots".The key technique is to hierarchically control the virtual system, ensuring QoS objectives are satis ed without requiring accurate predictions of the users' future locations.We d e v elop a simple analytical model to study the system and illustrate several key components of the approach.We f o r m ulate the problem of how to group the cells to form the virtual system as an optimization problem and propose a heuristic adaptive clustering algorithm as its solution.Finally, w e perform simulations in a two-dimensional network to compare the performance obtained with VBC and adaptive clustering with alternate schemes, including the optimal oine algorithm.Knightly for guiding me and teaching me how to do research.I also appreciate the kindness of Dr. Behnaam Aazhang and Dr. Robert Nowak, who were on my committee and enriched the thesis with their enlightening discussion.I am grateful to all my friends, and particularly to Rice Networks Group members, for their friendly assistance and insightful discussion.My special