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研究生:林華嚴
研究生(外文):Hua-Yan Lin
論文名稱:無人機基地台網路的換手與吞吐量之研究
論文名稱(外文):Research on Handover and Throughput of UAV Based Network
指導教授:吳中實
學位類別:碩士
校院名稱:國立中央大學
系所名稱:通訊工程學系
學門:工程學門
學類:電資工程學類
論文出版年:2020
畢業學年度:108
語文別:中文
論文頁數:60
中文關鍵詞:無人機基地台負載平衡換手機器學習
外文關鍵詞:UAVload balancinghandovermachine learning
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現今隨著線上直播與遊戲的興起,人們對於無線網路WIFI的需求量變得越來越高。而一旦某個區域有大量的人群聚集時,就會產生大的干擾,這時現有的macro cell網路通常很難滿足用戶的服務質量(QOS)要求,甚至會造成某些用戶無法獲得通訊的服務。
在本篇論文裡,我們透過派遣無人機基地台(UABS)從空中進行快速支援,為macro cell提供分流服務,從而減輕macro base station(MBS)的負擔。無人機的優點就在於它能夠動態的對服務區域進行調整,可以以機器學習的方式根據使用者的位置來進行配置。我們討論無人機基地台網路之間的換手情形,以及對於如何有效的讓用戶平均分攤到每個基地台以增加傳輸,透過使用3GPP所提出的CRE和ABSF機制來減少干擾並且增加吞吐量。
模擬結果顯示,所測量到的負載平衡和換手成功次數在使用機器學習配置無人機基地台的方法下,都得到了顯著的提升。而吞吐量的部分在透過動態CRE和所提出的動態ABSF機制下也能觀察出有所增加。
Nowadays, with the rise of online live and games, people's demand for wireless network has become higher and higher. Once a large number of people gather in a certain area, it will cause large path loss and interference. At this time, the existing macro cell network is often difficult to meet the user's quality of service (QOS) requirements, and even some users may not be able to obtain communication service.
In this thesis, we dispatch unmanned aerial vehicle base station (UABS) to provide rapid support from the air, and provide the diversion service for the macro cell, thereby reduce the burden of the macro base station (MBS). The advantage of the UAV is that it can dynamically adjust the service area, and can be configured according to the user's location by machine learning manner. We discuss the handover situation between UAV base station networks and how to effectively distribute users to each base station to increase transmission. By using the CRE and ABSF mechanisms proposed by 3GPP, we can reduce interference and increase throughput.
The simulation results show that the measured load balancing and the number of successful handover have been significantly improved by using machine learning to configure the UAV base station. The throughput part can also be observed to increase through the dynamic CRE and the proposed dynamic ABSF mechanism.
中文摘要........................................................................................................I
英文摘要......................................................................................................II
誌謝.............................................................................................................III
目錄.............................................................................................................IV
圖目錄.........................................................................................................VI
表目錄......................................................................................................VIII
第一章 序論.................................................................................................1
1-1前言.........................................................................................................1
1-2研究動機.................................................................................................1
1-3論文架構.................................................................................................2
第二章 相關研究背景.................................................................................3
2-1 LTE介紹.................................................................................................3
2-1-1 LTE相關技術介紹.......................................................................3
2-1-2 LTE系統架構...............................................................................4
2-1-3 LTE協定架構...............................................................................5
2-1-4 LTE實體層資源規劃...................................................................7
2-2 LTE-Advanced........................................................................................9
2-2-1 載波聚合(Carrier Aggregation) ..................................................9
2-2-2 Advanced MIMO........................................................................10
2-2-3 COMP(Coordinated Multipoint Transmission) .........................11
2-3異質網路(Heterogeneous Network) .....................................................12
2-4排程演算法...........................................................................................14
2-5換手機制(Handover) ............................................................................16
2-6無人機飛行載具(UAV) .......................................................................17
2-6-1 UAV無線通訊架構....................................................................18
2-6-2 UAV中繼傳輸............................................................................19
2-7機器學習...............................................................................................20
2-7-1 K-mean演算法...........................................................................21
2-8 CRE和ABSF........................................................................................24
第三章 系統架構與研究方法...................................................................27
3-1環境與系統架構...................................................................................27
3-2系統流程圖與演算法...........................................................................28
3-3動態CRE...............................................................................................30
3-4動態ABSF.............................................................................................32
3-5權重K-mean演算法.............................................................................33
第四章 模擬與分析...................................................................................34
4-1模擬參數...............................................................................................34
4-2模擬數據討論.......................................................................................36
第五章 結論與未來研究...........................................................................43
參考文獻.....................................................................................................44
[1] 3GPP LTE Release 8 and Release 9
[2] 3GPP TS 23.401 V9.3.0 General Packet Radio Service(GPRS)
enhancement for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access
[3] 3GPP TS36.300. Evolved Universal Terrestrial Radio Access(E-UTRA) and Evolved Universal Terrestrial Radio Access Network(E-UTRAN); Overall description; Stage 2
[4] 3GPP TR 36.814 v2.0.0, “Further Advancements for E-UTRA,Physical Layer Aspect”, Mar. 2010
[5] T. Nakamura, S. Abeta, H. Takahashi, and S. Nagata, “Advanced technologies in LTE/LTE-advanced,” NTT DOCOMO Tech. J., vol. 15,no. 2, pp. 4–8, 2013.
[6] Guan-hua Huang, “JWSQ based Interference coordination scheme between femtocells in LTE-Advanced system”, National Central University, Sept. 2012.
[7] Mohammad Ahmad Joud, “Pico Cell Range Expansion toward LTE-Advanced Wireless Heterogeneous Networks,” Universitat Politècnica de Catalunya (UPC), January. 2013
[8] Artiza Networks, “DL/UL Acceleration Technologies”,取自https://www.artizanetworks.com/resources/tutorials/accelera_tech.html
[9] Svetlana Boudko,Wolfgang Leister,Stein Gjessing, “Heterogeneous Wireless Network Selection: Load Balancing and Multicast Scenario”,International Journal on Advances in Networks and Services, issn: 1942-2644 vol.6 no.3&4,pp118-135,2013
[10] 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」,國立中央大學,碩士論文,102年6月
[11] 蕭中一,高勝助,「一個在 LTE 中具即時行進方向預測及動態權重調整的換手機制」,TANET2013臺灣網際網路研討會,351-357頁,2013年10月
[12] K. Dimou, W. Min, Y. Yu, M. Kazmi, A. Larmo, J. Pettersson, W.Muller, and Y. Timner, “Handover within 3GPP LTE: Design Principles and Performance”, in IEEE 70th Vehicular Technology Conference Fall (VTC 2009-Fall), Anchorage, Alaska USA, pp.1-5,2009
[13] Shams ur Rahman, Geon-Hwan Kim, You-Ze Cho, and Ajmal Khan, “Positioning of UAVs for Throughput Maximization in Software-Defined Disaster Area UAV Communication Networks”,Journal of Communications and Networks,vol.20,no.5, october 2018
[14] Kenneth Munson ,Taylor John William Ransom, “Jane's Pocket Book of Remotely Piloted Vehicles: Robot Aircraft Today”, Collier Books, 1977
[15] IMT-Advanced (4G) Mobile wireless broadband on the anvil New ITU radio interface standards to revolutionize mobile communication, ITU Press Release 21, October 2009
[16] Maiwald, F., and Schulte, A., “Using LTE-Networks for UAS Communication”, Proceeding of 36th European Telemetry and Test Conference, May 2016.
[17] Zhou, Y., Cheng, N., Lu, N., Shen, X. “Multi-UAV-Aided Networks Aerial–Ground Cooperative Vehicular Networking Architecture.”IEEE Vehicular Technology Magazine, pp 36-44,December 2015.
[18] Lisa Tagliaferri,“An Introduction to Machine Learning” ,September 2017, https://www.digitalocean.com/community/tutorials/an-introduction-to-machine-learning
[19] Chtseng, “非監督式學習 K-means”, 2017年3月,取自
https://chtseng.wordpress.com
[20] A. Daeinabi, K. Sandrasegaran, and P. Ghosal, “A Dynamic Cell Range Expansion Scheme based on Fuzzy Logic System in LTE-Advanced Heterogeneous Networks. ” ,IEEE International Conference on Communication Systems (ICCS),pp 533-537, November 2012
[21] L. Jiang,H. Che,W. Sun,J. Liu, “Resource Allocation Method for Inter-Cell Interference Coordination in Heterogeneous Networks with Almost Blank Subframe”,2019 5th International Conference on Transportation Information and Safety (ICTIS),pp 875-879, July 2019
[22] Pararawendy Indarjo, “ Using Weighted K-Means Clustering to Determine Distribution Centres Locations”,January 2020 取自https://towardsdatascience.com
[23] ETSI TR 136 931 V9.0.0 (2011-05)LTE; Evolved Universal Terrestrial Radio Access (E-UTRA);Radio Frequency (RF) requirements for LTE Pico Node B(3GPP TR 36.931 version 9.0.0 Release 9)
[24] I. Balan, T. Jansen, B. Sas, I. Moerman, T. Kurner, “Enhanced weighted performance based handover optimization in LTE”, Future Network and Mobile Summit 2011 Conference
[25] Alok Ranjan,Bighnaraj Panigrahi,Hemant Kumar Rath,Prasant Misra,Anantha Simha,and H. B. Sahu, “A Study on Pathloss Model for UAV Based Urban Disaster and Emergency Communication Systems”,2018 Twenty Fourth National Conference on Communications (NCC), February 2018
[26] David López-Pérez, Ismail Güvenc, Xiaoli Chu, “Mobility Management Challenges in 3GPP Heterogeneous Networks”,IEEE Communications Magazine, December 2012.
[27] Tom Molloy , Zhenhui Yuan , Gabriel-Miro Muntean, “Real time emulation of an LTE network using NS-3”,25th IET Irish Signals & Systems Conference 2014 and 2014 China-Ireland International Conference on Information and Communications Technologies (ISSC 2014/CIICT 2014),pp 251-257,June 2014
[28] Mariusz Slabicki , Krzysztof Grochla, “PyLTEs — Python LTE evaluation framework for quick and reliable network optimization”,2016 39th International Conference on Telecommunications and Signal Processing (TSP),pp 64-67,June 2016
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