博碩士論文 101523044 詳細資訊




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姓名 柯秉(Bing-kuei Ke)  查詢紙本館藏   畢業系所 通訊工程學系
論文名稱 在LTE-Advanced異質網路中,使用動態CRE和自我優化換手參數以提升產出之研究
(Using dynamic cell range expansion mechanism and self-optimization handover parameter to improve system throughput in LTE-Advanced Heterogeneous Networks)
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摘要(中) 在這個資訊爆炸的時代,智慧型的個人行動裝置也愈來愈普及。隨著這些裝置硬體設備的提升,普通的撥打電話、收發簡訊、瀏覽網頁已無法滿足需求。下一代行動通訊網路4G便朝著高傳輸率、低延遲及無縫換手的目標持續改進。雖然在台灣LTE-Advance還尚未啟動,但有許多相關的研究持續在進行。如:異質網路(Heterogeneous Network, HetNet)、載波聚合(Carrier Aggregation, CA)、協調型多點傳輸(Coordinated MultiPoint, CoMP)等等。
本篇論文著重在異質網路換手的議題上,異質網路為傳統的基地台覆蓋範圍內,再加入一些低功率的小型基地台,如何有效地增加整體使用者的傳輸量,並不會對傳統基地台產生顯著的干擾。而3GPP提出了Cell Range Eepansion及Almost Blank Subframe兩種機制來解決這個問題,本篇進一步加入了動態調整使用者設備換手參數的機制,TTT(Time-to-trigger)、HOM(Handover Margin)以及使用了動態調整CRE的機制,以達到更好的傳輸量,並降低斷線(Radio Link Failure)的發生率。
摘要(英) In the age of information explosion, intelligent personal mobile devices are also increasingly popular. With hardware of these devices upgrading, traditional dial phone, sending and receiving text messages, and browsing the web have been unable to fit demand. The next generation 4G mobile network will have high transmission rate, low latency and seamless handover that we should be improved toward these goals. For the LTE-Advanced system, there are many relating researches developed step by step. For example, there are many issues such as heterogeneous networks, Carrier Aggregation, Coordinated Multipoint and so on to study.
This thesis focuses on the handover issues in heterogrneous networks. Heterogeneous networks mean the environment that put number of low-power eNodeBs under the traditional eNodeB coverage. Therefore, how to effectively increase overall performance of user traffic, and not to generate significant interference to traditional eNodeB are important issues for study. The 3GPP proposed two mechanisms, CRE and ABSF to solving these problems, and this thesis further deliver a dynamic handover parameter mechanism and a dynamic CRE in the system, to achieve much better throughput and lower probability of cutoff (Radio Link Failure).
關鍵字(中) ★ 換手
★ 異質網路
關鍵字(英) ★ :LTE-Advanced
★ Heterogeneous Network
★ CRE
★ handover
★ TTT
★ HOM
論文目次 中文摘要………………………………………………………………..i
英文摘要………………………………………………………………..ii
誌謝…………………………………………………………………….iv
目錄……………………………………………………………………..v
圖目錄…………………………………………………………………vii
表目錄………………………………………………………………….ix
第一章 緒論…….……………………………………………………..1
1-1 研究背景………………………………………………..….1
1-2 研究動機………………………………………………..….2
1-3 論文架構………………………………………………...….3
第二章 相關研究背景………………………………………….….…..4
2-1 LTE/LTE-A架構…………………………………….…...….4
2-2 LTE-A相關技術…………..……………………………….10
2-3 換手機制………………………………………………..…16
2-4 換手環境………………………………………………..…18
2-5 CRE與ABSF……………………………………………..…19
第三章 環境架構與動態換手機制………………………….….…....21
3-1 系統環境及架構………………………………….…...…..21
目錄
3-2 動態Handover Parameter機制…………..……………....23
3-3 動態CRE機制…………………………………………...…29
第四章 模擬與分析………………………………………….….…....32
4-1 模擬參數…………………………………………………..32
4-2模擬數據與討論………………………..………………..…34
第五章 結論………………………………………….….…………....42
參考文獻………………………………………………………………..43
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IMT-Advanced Radio Interface(s)”Nov.2008.

[2] S. Sesia, I. Toufik, and M. Baker, “LTE, The UMTS Long Term Evolution : From Theory to Practice,” ISBN: 978-0-470-69716-0, WILEY-INTERSCIENCE, Apr. 2009.

[3] 3GPP, TS 36.300 V10.4.0, Evolved Universal Terrestrial Radio
Access (E-UTRA) and Evolved Universal Terrestrial Radio Access
Network (E-UTRAN); Overall description; Stage 2(Release 10).
[4] 3GPP TS 23.401 V9.3.0. General Packet Radio Service (GPRS)
enhancements for Evolved Universal Terrestrial Radio Access
Network (E-UTRAN) access.

[5] Xiaowei Li; Bingbing Li; Bing Lan ; Min Huang ; Guanghui Yu,”
Adaptive pf scheduling algorithm in LTE cellular system”
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(ICTC),2010 International Conference on

[6] J. Zyren, “Overview of the 3GPP Long Term Evolution Physical
Layer,” 3GPPEVOLUTIONWP Rev, July. 2007

[7] 3GPP TR 36.814 v2.0.0, “Further Advancements for E-UTRA,
Physical Layer Aspect,” Mar. 2010.

[8] Geoffrey Y. Li, Jinping Niu, Daewon Lee, Jiancun Fan, and Yusun
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[9] Nai-ning Chen, “Adaptive Carrier Aggregation Scheme for
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[10] Damnjanovic, A. ; Montojo, J.; Yongbin Wei ; Tingfang Ji ;Tao
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[11] Mohammad Ahmad Joud, “Pico Cell Range Expansion toward
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[12] Milio Iwamura, Hideaki Takahashi, Satoshi Nagata,”Relay
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[13] 何從廉, “3GPP LTE-A下行傳輸之多點協調技術介紹,” 工研院資通所, 2011.

[14] Guan-hua Huang, “JWSQ based Interference coordination scheme
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[15] Ewe, L. ; Bakker, H.,” Base station distributed handover
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[16] Mingju Li ; Juejia Zhou ; Liu Liu ; Xiaoming She,” Secondary
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.
[18] Ismail Güvenc, Moo-Ryong Jeong,˙Ibrahim Demirdogen, Balkan
Kecicioglu, and Fujio Watanabe, “Range Expansion and
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Networks,”DOCOMO Communications Laboratories USA, 2011.

[19] Jinyoung Oh ; Youngnam Han,” Cell Selection for Range
Expansion with Almost Blank Subframe in Heterogeneous Networks”, Personal Indoor and Mobile Radio Communications (PIMRC), 2012 IEEE 23rd International Symposium on.



[20] Irina Balan,Thomas Jansen, Bart Sas,Ingrid Moerman,Thomas
K¨urner,” Enhanced weighted performance based handover
optimization in LTE”, Future Network and MobileSummit 2011 Conference

[21] Giuseppe Piro, Luigi Alfredo Grieco, Gennaro Boggia, Francesco
Capozzi, and Pietro Camarda, “Simulating LTE Cellular Systems:
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no. 2, Feb, 2011, doi: 10.1109/TVT.2010.2091660

[22] 袁哲暐, “LTE-Advanced異質網路中使用動態細胞範圍拓展
抗干擾機制之研究, ” 2013.6
指導教授 吳中實(Jhong-shin Wu) 審核日期 2014-7-21
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