臺灣博碩士論文加值系統

在智慧型行動通訊設備的發展下，對於異質性移動式小細胞網路下的車載使用者的服務品質越來越重視。車載使用者在移動過程中會使用智慧型行動通訊設備來達到自己想要的網路服務，但在使用期間會遭受到來自於巨細胞、固定式小細胞以及其他移動式小細胞的三階層式干擾。透過不同的資源分配方案可以降低三階層式干擾對於車載使用者的影響。在論文中提出四種資源分配方案，分別為正交資源分配方案、T1時間正交資源分配方案、T2時間正交資源分配方案與非正交資源分配方案，探討在四種資源分配方案下採用不同的切割比例的同時，車載使用者的資料傳輸率、鏈結可靠度與系統的資料傳輸率。

With the development of smart communication devices, the quality of service (QoS) for vehicular users (VUEs) is more and more important in the heterogeneous mobile small-cell (MSC) network. The VUEs can be served by the MSC network when they are moving. However, the MSC may suffer three-tier interference from macrocells, fixed small-cells (FSCs) and other MSCs. The three-tier interference will seriously reduce the throughput and link reliability of VUEs. In this thesis, we propose the resource partition scheme to reduce the influence of three-tier interference in the heterogeneous MSC network. Four kinds of resource partition schemes are investigated, including the orthogonal resource partition scheme, T1-orthogonal resource partition scheme, T2-orthogonal resource partition scheme and non-orthogonal resource partition scheme. The simulation results show that the non-orthogonal resource partition scheme has higher system throughput, while the orthogonal resource partition scheme can achieve higher link reliability.

誌謝 ii
摘要 iii
Abstract iv
目錄 v
圖目錄 ix
表目錄 xi
1. 前言 1
1.1. 研究背景 1
1.2. 研究動機 7
1.3. 參考文獻 8
1.4. 研究目的 13
1.5. 研究貢獻 14
1.6. 論文架構 14
2. 系統模型 16
2.1 系統架構 16
2.2 通道模型 19
2.2.1. 路徑損失(Path Loss) 20
2.2.2. 穿透損耗(Penetration Loss) 21
2.2.3. 遮蔽衰落(Shadow Fading) 21
2.2.4. 小尺度衰落 21
2.3 移動式小細胞移動模組 22
2.3.1. 隨機方向模組(Random Direction Model) 22
3. 三階層式干擾與頻譜分配 24
3.1 三階層式干擾 24
3.2 頻譜分配方案 27
3.2.1. 非正交資源分配方案 27
3.2.2. T1時間正交資源分配方案 28
3.2.3. T2時間正交資源方案 29
3.2.4. 正交資源分配方案 30
4. 資源塊排程演算法 32
5. 效能指標 35
5.1 訊號與干擾雜訊比(SINR) 35
5.1.1. 回程鏈路(Backhaul Link)之SINR 36
5.1.2. 固定式小細胞之直接鏈路(Direct Link)之SINR 38
5.1.3. 巨細胞之直接鏈路(Direct Link)之SINR 42
5.1.4. 接入鏈路(Access Link)之SINR 44
5.2 資料傳輸率(Throughput) 46
5.3 調變與編碼策略(Modulation and Coding Scheme) 49
5.4 鏈結可靠度(Link Reliability) 50
6. 模擬結果與分析 52
6.1 模擬環境 52
6.2 模擬參數 54
6.3 模擬結果 55
7. 結論與未來工作 61
7.1 結論 61
7.2 未來工作 63
參考文獻 64
自傳 68

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