支援RoF被動式光纖網路的動態頻寬分配

Abstract

光纖和無線混合接取網路是一種新的接取網路。和光纖接取網路相比，它可以解決光纖接取網路中最後一哩的問題。和無線接取網路相比，它可以解決無線接取網路中通訊範圍不夠大和頻寬不夠的問題。本文的研究是在討論一種混合接取網路中光纖網路部份的頻寬分配問題，因為光纖網路在頻寬分配方面會受到無線網路的影響，所以提出兩個不同的動態頻寬分配演算法來減低受到的影響，第一個演算法的目標是提高系統使用率。第二個演算法的目標是在滿足高優先性流量服務品質的條件下，改善低優先性流量的品質。

Optical and wireless hybrid access network is an integrated access network. Compared with optical access network, it can solve the “last mile” problem in optical access network. Compared with wireless access network, it can solve the problem of shortage of communication range and bandwidth in wireless access network. This study is to discuss bandwidth allocation problem in optical network of hybrid access network. Because optical network in the bandwidth allocation will be the impact of wireless network, propose two different dynamic bandwidth allocation algorithms to reduce the impact. The first algorithm aims to improve the system utilization. The second algorithm aims to improve quality of low priority traffic on the premise that high priority traffic quality-of-service can be maintained.