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| 研究生： |
黃啟賢 Qi-Xian Huang |
|---|---|
| 論文名稱： |
以公平性為考量之LTE-A上行訊務排程方法研究 Study of Fairness Based Uplink Scheduler for LTE-A Network |
| 指導教授： |
陳彥文
Yen-Wen Chen |
| 口試委員: | |
| 學位類別： |
碩士 Master |
| 系所名稱： |
資訊電機學院 - 通訊工程學系 Department of Communication Engineering |
| 論文出版年： | 2017 |
| 畢業學年度： | 105 |
| 語文別： | 中文 |
| 論文頁數： | 75 |
| 中文關鍵詞： | 進階長期演進技術 、單載波正交頻分多址 、正交頻分多址 、多載波正交頻分多址 |
| 外文關鍵詞： | LTE-Advanced, SC-FDMA, OFDMA, Multi-Cluster-SC-FDMA |
| 相關次數： | 點閱：15 下載：0 |
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LTE-A（Long Term Evolution Advanced）是3GPP推出的4G網路主流技術。在無線資源調度方面，由無線資源管理單位（Radio Resource Management, RRM）來實現目標。SC-FDMA（Single-carrier Frequency-Division Multiple Access）具有比OFDMA（Orthogonal Frequency Division Multiple Access）較低之PAPR（Peak to Average Power Ratio），考量手機省電因素，LTE-A的Uplink採用SC-FDMA技術，SC-FDMA傳輸資料量低，所以要求調度傳輸分配給任一用戶之RB（Resource Block）必須是連續的，使得Downlink調度傳輸不能直接應用OFDMA技術在Uplink調度傳輸。
3GPP於Rel.8上行提出SC-FDMA，為了使UE選擇RB彈性，提昇系統吞吐量（throughput），於Rel.10推出了Multi-Cluster SC-FDMA載波技術，支援一個UE最多可以有2個clustered SC-FDMA之連續性分配，因此本論文參考文獻[1]之文章，引入此關鍵技術，並設計一個權值公式（weight function）來考量其公平性（fairness）及吞吐量。
最後模擬結果，除了符合規格之連續分配資源的規範，頻寬需求和用戶間通道品質考量之步驟，也加入了Multi-Cluster SC-FDMA技術、權值公式設計，達到系統頻寬資源之公平分配與吞吐量的提昇。
【關鍵詞】 LTE-Advanced、OFDMA、SC-FDMA、Multi-Cluster SC-FDMA
LTE-A (Long Term Evolution Advanced) was proposed by 3GPP, is the main technology of 4G Network. The RRM unit would fulfill the work for wireless resource scheduling. LTE-A uplink scheduling uses SC-FDMA technique to allocate continuous RBs for each UE, because it has low data-rate and its PAPR is lower than OFDMA. Lower PAPR can save UE’s battery energy. Therefore, OFDMA technique can not be applied on uplink scheduling transmission.
3GPP launched the Multi-Cluster Carrier technique in Rel.10 to make UEs can choose a flexible RB to enhance system throughput. Each UE could be assigned up to two continuous RBs allocation. This paper refers to a conference article which posted in VTC Fall [1], and will adopt this key technique to take throughput and fairness into consideration.
Simulation result finally shows that not only can meet the standard of continuous resource allocation, but take Bandwidth requirement and channel quality into account between UEs, and designs a design weight function with Multi-Cluster technique to achieve fairness of system bandwidth resource and throughput enhancement.
Keyword : LTE-Advanced、SC-FDMA、OFDMA、Multi-Cluster SC-FDMA
[1] Chang, C. H., Chao, H. L., and Liu, C. L.; “Sum Throughput-Improved Resource Allocation for LTE Uplink Transmission, ” 2011 IEEE Vehicular Technology Conference （VTC Fall.）
[2] Motorola, “Long Term Evolution（LTE）: A Technical Overview, ” Technical White Paper.
[3] Takehiro Nakamura, 3GPP TSG-RAN chairman NTT DOCOMO, INC.,“ LTE Rel-9 and LTE-Advanced in 3GPP”, May 19, 2009.
[4] http://www.3gpp.org/technologies/keywords-acronyms/98-lte
[5] http://www.3gpp.org/technologies/keywords-acronyms/97-lte-advanced
[6] https://cdn.rohde-schwarz.com/pws/dl_downloads/dl_application/application_notes/1ma169/1MA169_3e_LTE-Advanced_technology.pdf
[7] http://www.2cm.com.tw/technologyshow_content.asp?sn=1407290011
[8] http://www.laroccasolutions.com/140-lte-radio-interface-overview/
[9] http://www.openepc.net/index.html
[10] 3GPP TS 36.300 (v10.2.0 Release10), “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network.
[11] 3GPP TS 36.211 (v9.1.0 Release9), “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation”, April 2010.
[12] http://www.sharetechnote.com/html/FrameStructure_DL.html
[13] 3GPP, “Policy and Charging Control Architecture,” TR 23.203, 3rd Generation Partnership Project (3GPP), Mar. 2010.
[14] Hyung G. Myung; Junsung Lim; David J. Goodman; "Single carrier FDMA for uplink wireless transmission," Vehicular Technology Magazine, IEEE , vol.1, no.3, pp.30-38, Sept. 2006.
[15] http://www.cs.nccu.edu.tw/~jang/teaching/NextMobCom_files/Adaptive%20QoS%20Scheduling%20for%20OFDMA%20SC-FDMA%20in%20LTE.pdf
[16] http://www.keysight.com/upload/cmc_upload/All/Introducao.LTE.Evolucao.LTE.A.pdf?&cc=TW&lc=cht
[17] https://cdn.rohde-schwarz.com/pws/dl_downloads/dl_application/application_notes/1ma169/1MA169_3e_LTE-Advanced_technology.pdf
[18] Hua Wang; Hung Nguyen; Claudio Rosa; Klaus Pedersen “Uplink multi-cluster scheduling with MU-MIMO for LTE-Advanced with carrier aggregation, ” 2012 IEEE Wireless Communications and Networking Conference (WCNC).
[19] Moray Rumney BSc, C. Eng, MIET, “3GPP LTE: Introducing Single-Carrier FDMA”, Agilent Measurement Journal, Issue 4, pp.18-27, January 2008.
[20] http://www.2cm.com.tw/technologyshow_content.asp?sn=1001050009
[21] 孔翠玉，國立中央大學通訊工程研究所。Tradeoff Design of Radio Resource Scheduling for Power and Spectrum Utilizations in LTE Uplink System，碩士論文，June 2013.
[22] Hsi-Lu Chao; Chia-Kai Chang; Chia-Lung Liu “A novel channel-aware frequency-domain scheduling in LTE uplink, ” 2013 IEEE Wireless Communications and Networking Conference (WCNC).
[23] CuiYu Kong; Yen-Wen Chen; I-Hsuan Peng “Referential bounds analysis of uplink radio resource scheduling in LTE network, ” 2014 IEEE 11th Consumer Communications and Networking Conference (CCNC).
[24] Achraf Kessab; Fatima Zohra Kaddour; Emmanuelle Vivier; Lina Mroueh; Mylene Pischella; Philippe Martins “Gain of multi-resource block allocation and tuning in the uplink of LTE networks” 2012 International Symposium on Wireless Communication Systems (ISWCS).
[25] Rana E. Ahmed; Hanin M. AlMuhallabi ; “Throughput-fairness tradeoff in LTE uplink scheduling algorithms,” 2016 International Conference on Industrial Informatics and Computer Systems (CIICS).
[26] https://jwcn-eurasipjournals.springeropen.com/articles/10.1186/s13638-015-0329-y
[27] Hua Wang; Hung Nguyen; Claudio Rosa; Klaus Pedersen; “ Uplink multi-cluster scheduling with MU-MIMO for LTE-Advanced with carrier aggregation ” 2012 IEEE Wireless Communications and Networking Conference (WCNC).
[28] Akihiko Nishio; Takashi Iwai; Atsushi Matsumoto; Daichi Imamura “ System Evaluation of MU-MIMO and Multi-Cluster Allocation in LTE-Advanced Uplink” 2012 IEEE 75th Vehicular Technology Conference (VTC Spring).
