臺灣博碩士論文加值系統

雲端運用深入了我們的生活，但雲端運用需要網路及行動網路。行動服務已經廣泛的被人所接受，然而隨著快速無線通訊需求，擴張無線基地台卻是相當困難的。基地台彼此之間依靠實體的線路與後端核心網路相連，然而於高度發展的城市佈署網路骨幹是一項相當高成本的投資。因此部分電信業者正積極評估使用電力線提供部分基地台骨幹接取之可能性。由於電力線網路有限之通訊距離，目前廣泛的解決方案是使用數個中繼器加以延伸。然而由於電力線網路的複雜環境造成相同頻率大小卻有不同的實際傳輸速度。網路骨幹因此常出現瓶頸而只能提供低劣的服務速度。本研究透過自動化的適應性頻譜分配解決骨幹中出現之瓶頸問題。透過動態偵測不同頻率所能傳輸之速度進行重新分配，消除電力線骨幹網路中由傳輸頻頸造成的效能低落，進而提升電力線骨幹網路服務品質。

Cloud applications to go deep into our lives, but all the clound applications have to requies the use of internet and mobile network . Gradually, more people was accepted mobility service, but rapid expand more base stations is high-piced. Between base stations on entity lines connected to the back-end core network, however in the highly developed city deployed backbone network is very costly of investment. So part of the ISP is actively evaluating use power line provides some possibility of backbone access base stations. Due to limited power line network of communication range, the solution is used to extend the number of repeaters. However the complexity of the power line network environment have different disturbing conditions which it was caused different actual transfer rates in the same power line environment. Netowrk backbone can only provide poor service speed in the network bottleneck. In this study, adaptive spectrum allocation through the automation backbone appears to solve the bottleneck problem. Different frequencies can by dynamically detecting the speed of transmission of the re-allocation of backbone network to enhance the power line backbone network service quality.

摘要 I
Abstract II
目錄 IV
圖目錄 VI
表目錄 IX
第一章 緒論 1
第一節 簡介 1
第二節 研究目的 2
第三節 本文架構 4
第二章 電力線通訊技術介紹 5
第一節 電力線通訊發展歷史 5
第二節 電力線通訊系統架構 15
第三節中壓網路骨幹研究之動機與需求 26
第三章電力線通訊頻率研究分析與探討 27
第四章 電力線通訊實驗模擬與數值分析 33
第一節 AFAM 自適應頻率調整機制說明 33
第二節 模擬與分析 40
第五章 結論與未來發展 51
參考文獻 52

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