On bandwidth reservation policies in broadband wireless networks

摘要

Adaptive admission control reserves bandwidth for handoff calls by distributing bandwidth reservation values for each call to the neighboring base stations. The series of bandwidth reservation values distributed after k-th handoff determines the bandwidth reservation policy. This paper analyzes relationship between band-width reservation policies and call level QoS when user mobility is changing. We defien classes of non-aggressive and aggressive bandwidth reservation policies. We show that bounded call level QoS under heterogeneous user mobilities can be achieved only by using aggressive band width reservation policies. Examples of non-aggressive and aggressive bandwidth reservation policies are shown.