近年來，由於乙太被動式光纖網路可提供高頻寬、低成本和易維護的特性，再加上全球互通微波存取網路的行動性和普及性，因此整合乙太被動式光纖網路與全球互通微波存取網路是發展下一代接取網路中，一個具有潛力的整合型網路架構。然而，由於乙太被動式光纖網路和全球互通微波存取網路都有各自的傳輸模式，因此如何在整合型網路架構提供一個有效率的傳輸方式便是一個極待解決的問題。基於上述目標，本論文設計出一個動態頻寬分配輪詢架構，使得異質性網路的資料可以在此頻寬分配架構裡，運行各自的頻寬分配演算法，並且達到高頻寬的使用率，進而提高網路效能。此頻寬分配輪詢機制採用固定時間框架方法，將時間切割成多個連續時框。在每個時間框架裡，都可以保證兩種不同網路類型的資料可以獲得足夠的頻寬進行傳送。因此本研究所提出的動態頻寬分配機制不僅可以同時支援異質性網路資料的傳輸外，亦可以達到網路頻寬的高使用率。電腦模擬結果也證實本論文所提出的頻寬分配演算法機制框架的確可以滿足異質性網路之間不同的頻寬需求。

Recently, due to the high bandwidth, low cost and easy maintenance of Ethernet Passive Optical Networks (EPONs) and the mobility and ubiquity of Worldwide Interoperability for Microwave Access (WiMAX), the integration of EPONs and WiMAX is regarded as a promising access solution in realizing a hybrid fiber-wireless (FiWi) access networks. The complementary of EPONs and WiMAX can not only bring high bandwidth and mobility to end users but also reduce the implement cost to network providers. However, as a result of the distinct transmission modes of EPONs and WiMAX, the provision of an effective and efficient DBA scheme becomes an essential issue to be resolved. Therefore, this study proposes a novel DBA polling framework, in which the respective DBA schemes of EPONs and WiMAX can run simultaneously without changing their respective transmission modes. This DBA framework adopts a framed approach, in which the time is partitioned into successive frames. Within each frames, heterogeneous traffic are guaranteed efficient network resource to be transmitted. Since the proposed DBA polling framework permits heterogeneous traffic to share the available bandwidth efficiently whilst still satisfying the individual requirements of EPONs and WiMAX, it can provide an effective means of achieving the differentiated services in integrated Fi-Wi access networks. The computer simulations shows the proposed DBA polling framework operates effectively and efficiently in terms of network throughput, average delay, service differentiation, etc.

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