802.16換手機制之實現與效能評估
Implementation, Evaluation, and Comparisons of 802.16 MAC Layer Handover Mechanisms
Date Issued
2006
Date
2006
Author(s)
Chen, Wei-Hang
DOI
en-US
Abstract
IEEE 802.16 is the standard for mobile broadband wireless communication in metropolitan area networks. To support user mobility, 802.16 provides several MAC layer handover mechanisms including scanning without association, association without coordination, and association with coordination. The characteristics of delays incurred during handovers, however, are typically modeled based on simplified assumptions in related work. This thesis first uses a simple mathematical analysis to motivate detailed implementations of the 802.16 handover mechanisms. Based on these implementations, we give a simulation study on the handover mechanisms especially on the ranging procedure. We find that there are performance tradeoffs between these mechanisms for different network scenarios. We identify the tradeoffs and make some observations for future deployment of these handover mechanisms.
Subjects
換手機制
效能評估
WiMAX
IEEE 802.16
Handover
Evaluation
Type
thesis
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