博碩士論文 102523040 詳細資訊




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姓名 陳奕蓓(Yi-pei Chen)  查詢紙本館藏   畢業系所 通訊工程學系
論文名稱 LTE-A網路中聚合未授權頻譜之資源分配策略研究
(The Study of Resource Allocation Scheme on Aggregation of Unlicensed Spectrum in LTE-A networks)
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摘要(中) 隨著科技快速發展以及行動裝置的普及,使用者對於傳輸的需求量越來越高,伴隨著日益豐富的網路服務,用戶對上網品質的要求也日漸重視,3GPP於2008年提出LTE-Advanced作為IMT-Advanced的候選技術提案,其中最關鍵的技術為載波聚合技術,載波聚合即是可以將連續或不連續的載波單元聚合在一起以增大使用頻寬,好滿足大量使用者的需求速率。
由於使用者對於網路服務的需求量持續的上升,雖然載波聚合技術可以聚合多個載波單元來增大使用頻寬,但其頻譜資源還是只有原本的授權頻譜,3GPP便提出將載波聚合技術拓展頻譜至未授權頻譜,故本論文研究當在LTE-Advanced網路下聚合未授權頻譜時,系統該如何有效的在下行鏈路進行資源分配以滿足所有的使用者,本論文提出AHP分配演算法用來分配載波單元給使用者,該演算法在分配載波單元時不但會考慮使用者對於每個載波單元的通道品質量測參數,也會依據載波單元內的負載狀況來分配載波單元,還提出EUEF演算法來分配資源區塊給使用者,此演算法會對不同的訊務類型(GBR、non-GBR)進行更有效率的資源分配,最後模擬的結果將顯示相較於其他方法本論文所提出的方法擁有較好的吞吐量以及使用者滿意度。
摘要(英) With the rapid development of technology and the popularity of mobile devices, the demand of transmission data rate has been increasing. Along with the increasingly rich network services, quality requirements of Internet users are also becoming more important. The 3GPP proposed LTE-Advanced in 2008 as a candidate proposal for IMT-Advanced technology, the carrier aggregation technology is the most critical in LTE-Advanced that can increase the use of bandwidth by aggregating continuous or discontinuous Carrier Components to satisfy a large number of user’s demand.
Due to continuoes rise in user demand for Internet services, although carrier aggregation can aggregate multiple Carrier Component to increase the use of bandwidth, but it is still only the original licensed spectrum, the 3GPP has proposed to expand the carrier aggregation spectrum to unlicensed spectrum. Therefore, this thesis is to research when aggregation unlicensed spectrum in the LTE-Advanced network and the system how to effectively allocate resources in the downlink to satisfy all users. This thesis proposes an AHP allocation algorithm to allocate the Carrier Component to the user not only considers the user for each Carrier Component by channel quality measurements parameters, but also based on the load conditions within the cell to assign Carrier Component. We also proposes an EUEF algorithm to allocate resource blocks to the user, This algorithm can be more efficient allocation of resources for different types of traffic services (GBR, non-GBR). Finally, the simulation results will be compared to that by other methods, and it shows the proposed method has better throughput and user satisfaction.
關鍵字(中) ★ LTE-Advanced
★ 載波聚合
★ 未授權頻譜
★ 資源分配
關鍵字(英) ★ LTE-Advanced
★ Carrier Aggregation
★ Unlicensed Spectrum
★ Resource Allocation
論文目次 中文摘要....................................................................................................I
英文摘要...................................................................................................II
致謝..........................................................................................................Ⅳ
目錄.......................................................................................................... V
圖目錄.....................................................................................................VII
表目錄.......................................................................................................X
第一章 序論..............................................................................................1
1-1 前言..............................................................................................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介紹......................................................................................4
2-2 LTE-Advanced介紹...................................................................10
2-3 LTE in unlicensed spectrum(LTE-U)介紹.................................19
2-4 載波單元分配演算法................................................................22
2-5 封包調度演算法........................................................................23
2-6 Jain公平性指標.........................................................................26
第三章 系統情境與架構........................................................................27
3-1 載波聚合情境............................................................................27
3-2 系統拓樸與架構........................................................................28
3-3 載波單元分配演算法-AHP分配演算法...................................32
3-4 封包調度演算法-EUEF演算法.................................................40
第四章 模擬與分析................................................................................50
4-1 模擬環境與參數…....................................................................50
4-2 Traffic Model..............................................................................52
4-3 模擬結果與分析.........................................................................55
第五章 結論與未來研究方向................................................................81
參考文獻..................................................................................................82
參考文獻 [1] ITU-R Rep. M.2134, “Requirements Related to Technical Performance for IMT-Advanced Radio Interface(s)”, Nov.2008.

[2] Ghosh, A., et al. “LTE-Advanced : next-generation wireless broadband technology”, IEEE Wireless Communications, Vol. 17, no. 3, pp. 10-22, June 2010.

[3] Stefania Sesia, Issam Toufik, Matthew Baker, “LTE-The UMTS Long Term Evolution : From Theory to practice”, ISBN: 978-0-470-66025-6, Wiley, 2011

[4] Steer M., “Beyond 3G”, IEEE Microwave Magazine, Vol. 8, no. 1, pp. 76-82, Feb. 2007.

[5] Miao Wang, et al. “Resource Allocation for SC-FDMA in LTE Uplink”, Service Operations, Logistics, and Informatics (SOLI), 2011 IEEE International Conference on, pp. 601-604, July 2011.

[6] 3GPP TS 36.300, “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2”, version 10.4.0, June 2011.

[7] 3GPP TS 36.101, “Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception”, version 10.3.0, June 2011.

[8] Jeanette Wannstrom, “LTE-Advanced”, 3GPP, Technologies, Keywords & Acronyms, June 2013.

[9] Rasmus Hellberg,「拓展網路覆蓋率/容量 LTE-A邁向未授權頻譜發展」,新通訊元件雜誌,161 期,2014 年 7 月。

[10] 蘇志偉和劉舒慈,「減輕核心網路流量負載 D2D/LTE-U成5G研究焦點」,新通訊元件雜誌,164 期,2014 年 10 月。
[11] Peter Samuel,「Keeping 5.9 Gig for roadway comms - toll industry joins others in calling for FCC to go slow」,Toll Roads News,February 2013.

[12] Qualcomm, “Extending the benefits of LTE Advanced to unlicensed spectrum”, April 2014.

[13] Qualcomm, “Qualcomm Research LTE in Unlicensed Spectrum : Harmonious Coexistence with Wi-Fi”, June 2014.

[14] Liu Liu, et al. “Component Carrier Management for Carrier Aggregation in LTE-Advanced System”, IEEE Vehicular Technology Conference, pp. 1-6, May 2011.

[15] Huda Adibah Mohd Ramli, et al. “Performance of Well Known Packet Scheduling Algorithms in the Downlink 3GPP LTE System”, IEEE 9th Malaysia International Conference on Communications, pp. 815-820, Dec. 2009.

[16] Yao-Liang Chung, Lih-Jong Jang, Zsehong Tsai, “An Efficient Downlink Packet Scheduling Algorithm in LTE-Advanced Systems with Carrier Aggregation”, IEEE Consumer Communications and Networking Conference (CCNC), pp. 632-636, Jan. 2011.

[17] Rajendra. K. Jain, et al. “A Quantitative Measure of Fairness and Discrimination for Resource Allocation in Shared Computer Systems”, DEC Research Report TR-301, September 1984.

[18] K. Paul Yoon, Ching-Lai Hwang, “Multiple Attribute Decision Making : An Introduction”, ISBN: 0-8039-5486-7, Sage Publications, 1995.

[19] Gwo-Hshiung Tzeng, Jih-Jeng Huang, “Multiple Attribute Decision Making : Methods and Applications”, ISBN: 978-1-4398-6157-8, CRC Press, 2011.

[20] 林艾潔,“基於於模糊邏輯於異質無線網路之聯合無線電資源管理”,2008 年 7 月。

[21] 朱筱嵐,“應用模糊與粗集合理論於多準則決策之研究”,2005 年 6 月。

[22] 3GPP TS 23.203, “Technical Specification Group Services and System Aspects; Policy and charging control architecture”, version 11.6.0, June 2012.

[23] 3GPP TS 36.213, “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures”, version 8.8.0, Oct. 2009.

[24] 3GPP TR 25.892, “Technical Specification Group Radio Access Network;
Feasibility Study for Orthogonal Frequency Division Multiplexing (OFDM) for UTRAN enhancement”, version 6.0.0, June 2004.

[25] WiMAX Forum Application AWGN Working Group. “WiMAX System Evaluation Methodology”, September 2007.

[26] Rasha Alkhansa, Hassan Artail, David M. Gutierrez-Estevez, “LTE-WiFi Carrier Aggregation for Future 5G Systems: A Feasibility Study and Research Challenges”, Procedia Computer Science, Vol. 34, pp. 133-140, August 2014.

[27] Tomislav Shuminoski, Toni Janevski, “Radio Network Aggregation for 5G Mobile Terminals in Heterogeneous Wireless and Mobile Networks”, Wireless Personal Communications, Vol. 78, no. 2, pp. 1211-1229, Springer US, September 2014.
指導教授 吳中實(Jung-shyr Wu) 審核日期 2015-7-29
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