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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 郭斯彥(Sy-Yen Kuo) | |
dc.contributor.author | Shih-Hsuan Chen | en |
dc.contributor.author | 陳世軒 | zh_TW |
dc.date.accessioned | 2021-06-15T02:34:23Z | - |
dc.date.available | 2016-02-01 | |
dc.date.copyright | 2011-08-23 | |
dc.date.issued | 2011 | |
dc.date.submitted | 2011-08-16 | |
dc.identifier.citation | REFERENCES
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Valcarce, G. de la Roche, and J. Zhang, 'OFDMA femtocells: a roadmap on interference avoidance,' IEEE Commun. Mag., vol. 47, pp. 41-48, Sep. 2009. [7] V. Chandrasekhar and J. G. Andrews, 'Uplink capacity and interference avoidance for two-tier femtocell networks,' IEEE Trans. Wireless Commun., vol. 8, pp. 3498-3509, Jul. 2009. [8] V. Chandrasekhar and J. G. Andrews, 'Spectrum allocation in tiered cellular networks,' IEEE Trans. Commun., vol. 57, pp. 3059-3068, Oct. 2009. [9] R. Y. Chang, T. Zhifeng, Z. Jinyun, and C. C. J. Kuo, 'A graph approach to dynamic fractional frequency feuse (FFR) in multi-cell OFDMA networks,' in Proc. IEEE Int. Conf. Commun., Jun. 2009, pp. 1-6. [10] I. Guvenc, J. Moo-Ryong, F. Watanabe, and H. Inamura, 'A hybrid frequency assignment for femtocells and coverage area analysis for co-channel operation,' IEEE Commun. Lett., vol. 12, pp. 880-882, Dec. 2008. [11] C. Young-June, K. Cheol Seung, and B. Saewoong, 'Flexible design of frequency reuse factor in OFDMA cellular networks,' in Proc. IEEE Int. Conf. Commun., Jun. 2006, pp. 1784-1788. [12] W. Yi, Z. Dongmei, J. Hai, and W. Ye, 'A novel spectrum arrangement scheme for femto cell deployment in LTE macro cells,' in Proc. IEEE Int. Symp. PIMRC, Sep. 2009, pp. 6-11. [13] B. Yong, Z. Juejia, L. Liu, C. Lan, and H. Otsuka, 'Resource coordination and interference mitigation between macrocell and femtocell,' in Proc. IEEE Int. Symp. PIMRC, Sep. 2009, pp. 1401-1405. [14] V. Chandrasekhar, J. G. Andrews, T. Muharemovic, S. Zukang, and A. Gatherer, 'Power control in two-tier femtocell networks,' IEEE Trans. Wireless Commun., vol. 8, pp. 4316-4328, Aug. 2009. [15] D. Choi, P. Monajemi, K. Shinjae, and J. Villasenor, 'Dealing with loud neighbors: the benefits and tradeoffs of adaptive femtocell access,' in Proc. IEEE Global Telecomm. Conf., Nov./Dec. 2008, pp. 1-5. [16] D. López-Pérez, A. Valcarce, G. De La Roche, L. Enjie, and Z. Jie, 'Access methods to WiMAX femtocells: A downlink system-level case study,' in Proc. IEEE Int. Conf. Commun. Systems, Nov. 2008, pp. 1657-1662. [17] A. Valcarce, D. López-Pérez, G. De La Roche, and Z. Jie, 'Limited access to OFDMA femtocells,' in Proc. IEEE Int. Symp. PIMRC, Sep. 2009, pp. 1-5. [18] S.-Y. Lien, C.-C. Tseng, K.-C. Chen, and C.-W. Su, 'Cognitive radio resource management for QoS guarantees in autonomous femtocell networks,' in Proc. IEEE ICC, May 2010, pp. 1-6. [19] H.-C. Lee, D.-C. Oh, and Y.-H. Lee, 'Mitigation of inter-femtocell interference with adaptive fractional frequency reuse,' in Proc. IEEE ICC, May 2010, pp. 1-5. [20] K. Sundaresan and S. Rangarajan, 'Efficient resource management in OFDMA femto cells,' in Proc. ACM Int. Symp. Mobi Hoc, May 2009, pp. 33-42. [21] M. Rahman and H. Yanikomeroglu, 'Enhancing cell-edge performance: a downlink dynamic interference avoidance scheme with inter-cell coordination,' IEEE Trans. Wireless Commun., vol. 9, pp. 1414-1425, Apr. 2010. [22] M. Rahman and H. Yanikomeroglu, 'Interference avoidance through dynamic downlink OFDMA subchannel allocation using intercell coordination,' in Proc. IEEE Veh. Technol. Conf., May 2008, pp. 1630-1635. [23] General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access (Release 10), 3GPP Technical Specification TS 23.401 V10.2.1, Jan. 2011. [Online]. Available: http://www.3gpp.org. [24] Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (Release 10), 3GPP Technical Specification TS 36.213 V10.0.1, Dec. 2010. [Online]. Available: http://www.3gpp.org. [25] Cisco, 'Cisco visual networking index: global mobile data traffic forecast update 2009-2014,' White Paper, Feb. 2010. [26] L. Xiukui and S. A. Zekavat, 'Traffic pattern prediction and performance investigation for cognitive radio systems,' in Proc. IEEE Wireless Commun. and Netw. Conf., Apr. 2008, pp. 894-899. [27] C. Jedrzycki and V. C. M. Leung, 'Probability distribution of channel holding time in cellular telephony systems,' in Proc. IEEE Veh. Technol. Conf., May 1996, pp. 247-251. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43964 | - |
dc.description.abstract | 低成本與寬頻無線接入的特性讓家用基地台在室內環境更顯優勢,然而家用基地台與大型基地台間之干擾問題將嚴重影響服務品質。為了避免採用增加硬體成本的改善方法,本研究針對頻譜配置的演算法進行研究。採用跨層級網路設備協調的機制,來避免不佳的電源控管造成的干擾問題,進而讓有效率的分散式頻譜配置演算法能有效作用,以提供良好的訊號品質。
本研究針對Femtocell之間的共用頻譜分配,並根據各QoS服務類型需求做有效的資源分配。本方法使用集中式資源配置之演算法,並將最終資源配置之裁量權交由Femtocell的管理系統(FMS),由於其管理Femtocell的群體數量不至於太多,因此不會有壅塞的情況發生。同時,欲套用此機制,硬體方面僅需在FMS端加上足夠的Cache memory紀錄資源之使用狀況,再行實作FMS端的管理及兩者間的溝通協定,Femtocell端不需為因應新機制而變更現有規格,對於供應商而言是可行的升級方案。 | zh_TW |
dc.description.abstract | Minimizing femtocell interference, maximizing resource efficiency and ensuring quality of service (QoS) are important challenges in the design of protocols for femtocell networks. Techniques of interference avoidance, resource efficiency improvement, and QoS guarantee consist in finding an optimal assignment of physical resource blocks (PRBs). For example, in dense area deployments, only resources that are not occupied by interfering neighbors can be assigned with considerations of employed resources and required service qualities. In this thesis, we address the optimal PRB assignments in orthogonal frequency division multiple access (OFDMA) femtocell networks. Typically, all femtocells operate in the co-channel deployment, and schedule for different connections dynamically. We seek a resource-optimal distribution that maximizes spectral efficiency while ensuring simultaneous femtocell connectivity quality to femtocell management systems, which are constrained to form an interference graph used as an assignment distribution. First, we formulate this problem as an Integer Linear Programming model. Then, we implement a greedy algorithm to solve the allocation problems. Experimental results show that the proposed model provides optimal spectral efficiency values according to the dynamic femtocell loading. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T02:34:23Z (GMT). No. of bitstreams: 1 ntu-100-R98943152-1.pdf: 3163313 bytes, checksum: 657f081746b0a01e4d582f02d6ca4094 (MD5) Previous issue date: 2011 | en |
dc.description.tableofcontents | CONTENTS
口試委員會審定書 ............................................................................................................i 誌謝................................................................................................................................. ii 中文摘要......................................................................................................................... iii ABSTRACT .....................................................................................................................iv CONTENTS ......................................................................................................................v LIST OF FIGURES........................................................................................................ vii LIST OF TABLES......................................................................................................... viiiChapter 1 Introduction 1 1.1 Motivation 1 1.2 Organization 2 Chapter 2 Background and Related Works 3 2.1 The Long Term Evolution of UMTS 3 2.2 Orthogonal Frequency Division Multiple Access 3 2.3 Femtocells 6 2.4 Deployment Issues 6 2.4.1 Radio Interference 6 2.4.2 Resource Reuse 7 2.4.3 Quality of Service 8 2.5 Previous Work 9 2.5.1 Cognitive Radio Resource Management for QoS Guarantees in Autonomous Femtocell Networks 9 2.5.2 Mitigation of Inter-Femtocell Interference with Adaptive Fractional Frequency Reuse 10 2.5.3 Efficient Resource Management in OFDMA Femto Cells 10 2.6 Summary 11 Chapter 3 Problem Statement and Assumptions 12 3.1 Network Architecture 12 3.2 Self-Organizing Network (SON) 13 3.3 QoS Class Identifier (QCI) 13 Chapter 4 Problem Modeling and Proposed Method 15 4.1 Problem Model 15 4.2 Proposed Method 20 Chapter 5 Simulation Results 22 Chapter 6 Conclusion 33 REFERENCES 34 | |
dc.language.iso | en | |
dc.title | 3GPP長期演進技術中室內小型基地台之無線電干擾分析與迴避機制設計 | zh_TW |
dc.title | Analysis and Design of Radio Interference Avoidance Mechanism for 3GPP LTE Femtocell | en |
dc.type | Thesis | |
dc.date.schoolyear | 99-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 雷欽隆(Chin-Laung Lei),陳俊良(Jiann-Liang Chen),陳英一(Ing-Yi Chen),呂學坤(Shyue-Kung Lu) | |
dc.subject.keyword | 家用基地台,無線電干擾,干擾迴避,頻譜重複利用,資源分配, | zh_TW |
dc.subject.keyword | Femtocell,OFDMA,interference avoidance,resource reuse,resource allocation, | en |
dc.relation.page | 37 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2011-08-17 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電子工程學研究所 | zh_TW |
顯示於系所單位: | 電子工程學研究所 |
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