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研究生:羅康豪
研究生(外文):Kang-Hao Lo
論文名稱:LTE下行系統之分散式基地台干擾協調方法研究
論文名稱(外文):Study of De-centralized Inter-Cell Interference Coordination Method in LTE Downlink System
指導教授:陳彥文陳彥文引用關係
指導教授(外文):Yen-Wen Chen
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
論文種類:學術論文
論文出版年:2015
畢業學年度:103
語文別:英文
論文頁數:58
中文關鍵詞:LTE下行鏈路基地台間干擾之協調方法
外文關鍵詞:LTE downlinkICICInter Cell Interference Coordination
相關次數:
  • 被引用被引用:0
  • 點閱點閱:208
  • 評分評分:
  • 下載下載:14
  • 收藏至我的研究室書目清單書目收藏:0
隨著科技的進步與第三代合作夥伴計劃所規範的LTE/LTE-A的普及,基地台間干擾的協調越顯重要。因為在LTE-A的標準當中已經將昂貴頻譜之頻譜使用率(FRF)提升為1,這也代表著營運商不再使用切割頻譜的方式來避開基地台間干擾了,進而提升整體的頻譜使用率。同時,在LTE/LTE-A的無線接取網路技術廣受青睞,分散式的基地台間干擾的協調方法將比集中式的方法來的更為合適。由於有著LI (Load Information) 及其傳送通道X2介面的出現,LTE/LTE-A中更能有效地執行基地台間干擾的協調方法進而改善因為處於基地台覆蓋邊緣的UE (User Equipment) 受到相鄰基地台的干擾。在蜂巢式基地台網路的架構下因為基地台覆蓋邊緣的數量及面積增加,基地台間干擾的協調就更顯不可或缺了。在此論文中,我們將提出名為RTRBC (Relative Throughput based RB Coordination Scheme)的分散式基地台間干擾協調方法用以解決基地台間的干擾協調議題。藉由比較得失的啟發方式,所提出的架構將在基地台間協商使用的無線資源而達到更高的系統吞吐量。而實驗的結果能展現所提出的方法之效率值。
Inter-cell Interference coordination (ICIC) has been more and more important in the 3rd Generation Partnership Project’s (3GPP’s) Long Term Evolution –Advanced (LTE-A) standardization since the Frequency Reuse Factor (FRF) has already been 1 which means we utilized whole frequency without partition into several segmentations. Meanwhile, with radio access networks in LTE/LTE-A are flatter, decentralized ICIC algorithm has become more suitable than the centralized algorithm. Because of the import of the Load Information (LI) through X2 interface, ICIC could be effectively used to reduce the interference of edge users in LTE/LTE-A system. In the multi-cell radio resource management of LTE/LTE-A system, ICIC plays a significant role in enhancing cell edge spectrum efficiency. In this thesis, we propose a decentralized ICIC method, named relative throughput based resource block coordination (RTRBC), to coordinate the interference between eNBs. By comparing the relative gain and loss in heuristic manner, the proposed scheme negotiates the RB usage between adjacent eNBs to achieve higher throughput. The simulation results also demonstrate the effectiveness of the proposed scheme.
中文摘要 I
ABSTRACT II
誌謝 III
OUTLINE IV
FIGURES VI
TABLES VII
CHAPTER 1 INTRODUCTION 1
 1.1 BACKGROUND 1
 1.2 MOTIVATIONS 1
 1.3 CHAPTER OUTLINE 2
CHAPTER 2 RESEARCH BACKGROUND 4
 2.1 LTE SYSTEM ARCHITECTURE 4
 2.2 FRAME STRUCTURE 6
 2.3 CHANNEL BANDWIDTH AND MODULATION SCHEMES 8
 2.4 CHANNEL QUALITY INDICATOR 9
 2.5 FREQUENCY REUSE OVERVIEW 10
2.5.1 Hard Frequency Reuse 10
2.5.2 Fractional Frequency Reuse 11
 2.6 RELATED WORKS 12
 2.7 PROBLEM ANALYSIS 14
CHAPTER 3 RELATIVE THROUGHPUT BASED RB COORDINATION SCHEME 18
 3.1 SYSTEM ARCHITECTURE 18
 3.2 RTRBC WEIGHTING FUNCTIONS DESIGN 21
3.2.1 RTRBC Scheme 22
3.2.2 RTRBC-r Scheme 24
 3.3 DE-CENTRALIZED VIRTUAL COMPETITION 25
CHAPTER 4 PERFORMANCE SIMULATIONS 27
 4.1 SIMULATION MODEL 27
 4.2 SIMULATION CYCLE AND ASSUMPTIONS 28
 4.3 SIMULATION RESULTS 29
4.3.1 Uniform Saturation Ratio Model 30
4.3.2 Hotspot Model 33
4.3.3 Two-Cell Model 35
4.3.4 Star Model 38
CHAPTER 5 CONCLUSIONS 41
REFERENCES 42

[1] Jamal, M., Horia, B., Maria, K., & Alexandru, I. “Study of multiple access schemes in 3GPP LTE OFDMA vs. SC-FDMA”. International Conference on Applied Electronics (AE), pp. 1-4, 2011.
[2] 3GPP TS 36.300 (v10.3.0 Release 10), “Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2,” April 2011.
[3] 3GPP TS 23.401 (v10.3.0 Release 10), “General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access,” March 2011.
[4] 3GPP TS 36.211 (v9.1.0 Release 9), “Evolved Universal Terrestrial Radio Access (E-UTRA),Physical Channels and Modulation,” March 2010.
[5] 3GPP TS 36.101 (v10.3.0 Release 10), “Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception,” June 2011.
[6] 3GPP TS 36.201 (v8.3.0 Release 8), “Evolved Universal Terrestrial Radio Access (E-UTRA); Long Term Evolution (LTE) physical layer; General description,” March 2009.
[7] Kessab, A., Kaddour, F. Z., Vivier, E., Mroueh, L., Pischella, M., & Martins, P. “Gain of multi-resource block allocation and tuning in the uplink of LTE networks”, Wireless Communication Systems (ISWCS), pp. 312-325, 2012.
[8] 3GPP TS 36.213 (v12.5.0 Release 12), “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures,” March 2015.
[9] NS-3 LTE module Design Documentation. Available: https://www.nsnam.org/
[10] 3GPP TS 32.500 (v12.1.0 Release 12), “Telecommunication management; Self-Organizing Networks (SON); Concepts and requirements,” December 2014.
[11] 3GPP TS 32.511 (v12.0.0 Release 12), “Telecommunication management; Automatic Neighbour Relation (ANR) management; Concepts and requirements,” October 2014.
[12] Daigo Ogata, Atsushi Nagate, and Teruya Fujii. “Multi-BS Cooperative Interference Control for LTE Systems.” Vehicular Technology Conference (VTC Spring), pp. 1-5, May 2012.
[13] Shady S. Khalifa, Haitham S. Hamza, Khaled Elsayed, Cairo University. “Inter-Cell Interference Coordination for Highly Mobile Users in LTE-Advanced Systems.” Vehicular Technology Conference (VTC Spring), pp. 1-5, June 2013.
[14] Dengkun Xiao, Beijing Institute, Huawei Technologies Co., Ltd. “A Novel Downlink ICIC Method Based on User Position in LTE-Advanced Systems.” Vehicular Technology Conference (VTC Fall), pp. 1-5, September 2012.
[15] Dengkun Xiao, Beijing Institute, Huawei Technologies Co., Ltd. Jian Huang & Xiaojun Jing Beijing University. “A Downlink ICIC Method Based on Region in LTE-Advanced Systems.” International Symposium on Personal, Indoor and Mobile Radio Communications Workshops (PIMRC Workshops), pp. 420-423, September 2010.
[16] Shujun Wang, Yuan Zhang, and Guangguo Bi. National Communication Research Laboratory Southeast University. “A Decentralized Downlink Dynamic ICIC Method for Multi-cell OFDMA System.” International Conference on Wireless Communications and Signal Processing (WCSP), pp. 1-5, November 2011.
[17] 3GPP TS 36.211 (v12.5.0 Release 12), “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation,” March 2015.
[18] 3GPP TS 36.133 (v12.5.0 Release 12), “Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of radio resource management,” October 2014.
[19] Mohammad T. Kawser, Nafiz Imtiaz Bin Hamid, Md. Nayeemul Hasan, M. Shah Alam, and M.Musfiqur Rahman. “Downlink SNR to CQI Mapping for Different Multiple Antenna Techniques in LTE.” International Journal of Information and Electronics Engineering, Vol. 2, No. 5, September 2012.
[20] 3GPP TR 36.942 (v12.0.0 Release 12), “Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Frequency (RF) system scenarios,” October 2014.
[21] 3GPP TS 36.423 (v12.5.0 Release 12), “Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP),” March 2015.

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