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| 研究生： |
朱祐毅 Yu-Yi Chu |
|---|---|
| 論文名稱： |
支援隨機存取通道為基礎之小資料傳輸的LTE網路資源分配 Preamble Allocation for LTE Networks Supporting RACH-based Small Data Transmissions |
| 指導教授： |
鄭瑞光
Ray-Guang Cheng |
| 口試委員: |
許獻聰
Shian-Tsung Sheu 曹孝櫟 Shaio-Li Tsao 呂政修 Jenq-Shiou Leu 陳仁暉 Jen-Hui Chen |
| 學位類別： |
碩士 Master |
| 系所名稱： |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
| 論文出版年： | 2015 |
| 畢業學年度： | 103 |
| 語文別： | 英文 |
| 論文頁數： | 34 |
| 中文關鍵詞： | 隨機存取 、資料傳輸方法 、資源分配 、服務品質 |
| 外文關鍵詞： | random access, small data transmission, preamble allocations, quality of services |
| 相關次數： | 點閱：436 下載：6 |
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在3GPP 規格書提出隨機存取通道基礎之小資料傳輸方法來減少傳送用戶只需傳送小資料而對網路造成的影響。因此小資料傳輸的效能將取決於傳送用戶在隨機存取通道上的效能。此篇論文探討了多類別的傳送用戶在兩種隨機存取通道上資源分配方式之效能-專屬方式及共享方式。當傳輸用戶數量、流量模型、到達時間以及服務品質需求門檻確立，我們可以選擇分離方式或共享方式使得效能得到最佳結果。
Random access channel (RACH)-based small data transmission is one of the solutions proposed by 3GPP for the machine devices to transmit small packets without the establishment of a signalling connection with the core network. . The performance of the RACH-based small data transmission is highly dependent on the preamble allocation of the RACH. In this paper, we consider a cellular network which adopts RACH-based small data transmission to support multiple access-class machine devices. The preambles of the RACH is dedicatedly assigned to each access-class or partially shared by all access-classes. We present an analytical model to estimate the access success probability and the mean access delay of the devices for each access-class and identify the best preamble allocation method according to the given offered loads and traffic patterns.
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[2] 3GPP TS 22.368, “Service requirements for machine-type communications (MTC); Stage 1,” v. 12.3.0, Dec. 2013.
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[14] C. H. Wei, G. Bianchi, and R. G. Cheng, “Modeling and analysis of random-access channels with bursty arrivals in OFDMA wireless networks,” submitted for publication.
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[19] 3GPP TR 36.912, “Feasibility study for further advancements for E-UTRA (LTE-Advanced),” v. 10.0.0, Mar. 2011.
