| Summary: | 碩士 === 國立成功大學 === 資訊工程研究所 === 88 === An admission control mechanism is performed at setup time for a new connection to determine whether this connection can be established or not. This control mechanism can help the ensurance of the Quality of Service (QoS) for data transmission. In this thesis, we describe six call admission control algorithms (CAC) and simulate three representative measurement-based admission control algorithms (MBAC), namely Measured Sum, Hoeffding bound, and Adaptive Weight Factor. The performance of these three algorithms is compared. Further, the unfairness of these algorithms in a heterogeneous environment is investigated. Simulation results indicate that connections with large peak rates or traveling many hops are difficultly admitted. To solve the unfair problem, four novel measurement-based admission control methods, namely, Number Guarantee, Bandwidth Segment, Request Holding, and Revenue Judgment, are developed.
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