Robust QoS Scheduling in Wireless Network with Channel state Information
Date Issued
2005
Date
2005
Author(s)
Li, Yu-Shiuan
DOI
en-US
Abstract
In this thesis, we capture what sufficient condition is essential to guarantee bounded delay by investigating Earliest Deadline First (EDF) scheme, which is delay-optimal in wireline system. By the inspiration of the investigation and theoretical architecture of deterministic QoS guarantee, a characterization of wireless channel variation is proposed. By examining several critical scenarios under such characterization, we conclude that scheduling scheme based on only deadline emergency is not appropriate in wireless channel, especially when the channel is interfered severely. Some possible improving approaches are discussed. We propose new scheduling schemes based on the concept of design of PGPS and the sufficient condition of EDF. Partial results of achievable delay bound and scheduling region is derived. Nevertheless, the worst case and its approximation illustrate that the characterization of wireless channel should be improved such that the delay bound can be better.
Subjects
服務品質
排程
無線網路
Quality of Service
scheduling
wireless network
Type
thesis
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