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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 廖婉君 | |
dc.contributor.author | Tsung-Yen Ho | en |
dc.contributor.author | 何宗燕 | zh_TW |
dc.date.accessioned | 2021-06-15T05:43:13Z | - |
dc.date.available | 2013-08-20 | |
dc.date.copyright | 2010-08-20 | |
dc.date.issued | 2010 | |
dc.date.submitted | 2010-08-20 | |
dc.identifier.citation | 1. Gordon Mansfield. Femto cells in the us market – business drivers and femto cells in the us market – business drivers and consumer propositions. In FemtoCells Europe 2008. ATT, 2008.
2. Shu-ping Yeh and Shilpa Talwar, “WiMAX Femtocells: A Perspective on Network Architecture, Capacity, and Coverage,” IEEE Communication Magazine, Oct. 2008. 3. The Femto Forum, “Interference Management in UMTS Femtocells,” Dec 2008. 4. Holger Claussen, “Performance of Macro- and Co-Channel Femtocells in a Hierarchical Cell Structure,” PIMRC’ 07 5. 3GPP TS 36.300 V9.1.0 (2009-09) 6. Han-Shin Jo and Jong-Gwan Yook, Cheol Mun, “A SELF-ORGANIZED UPLINK POWER CONTROL FOR CROSS-TIER INTERFERENCE MANAGEMENT IN FEMTOCELL NETWORKS,” IEEE Military Communications Conference MILCOM 2008. 7. Holger Claussen, “ Performance of macro- and co-channel femtocells in a hierarchical cell structure,”IEEE PIMRC 2007. 8. V. Chandrasekhar and 1. G. Andrews, 'Uplink capacity and interference avoidance for two-tier cellular networks,' in Proc. IEEE Globecom, Nov. 2007, pp. 3322-3326. 9. David L’opez-P’erez, Guillaume de la Roche, “Interference Avoidance and Dynamic Frequency Planning for WiMAX Femtocells Networks,”IEEE ICCS 2008. 10. Chang-Yeong Oh, Min Young Chung, “A Novel Frequency Planning for Femtocells in OFDMA-Based Cellular Networks Using Fractional Frequency Reuse,” ICCSA 2010. 11. International Telecommunication Union, “ITU-R Recommendations P.1411-4: Propagation data and prediction methods for the planning of short-range outdoor radiocommunication systems and radio local area networks in the frequency range 300 MHz to 100 GHz,” August 2007. 12. International Telecommunication Union, “ITU-R Recommendations P.1238-1: Propagation data and prediction methods for the planning of indoor radiocommunication systems and radio local area networks in the frequency range 900 MHz to 100 GHz,” 1999. 13. 3GPP TSG RAN WG1#42 R1-050764.” Inter-cell interference handling for E-UTRA. Technical report,” Ericsson, September 2005. 14. 3GPP TSG RAN WG1#42 R1-050841. “Further analysis of soft frequency reuse scheme.” Technical report, Huawei, 2005. 15. 3GPP R1-050507. “Soft frequency reuse scheme for UTRAN LTE.” Huawei, 2005. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/46913 | - |
dc.description.abstract | Femtocell又稱為毫微微蜂巢式基地台,或是家用基地台,在固網與行動網路融合(FMC)中扮演重要腳色。Femtocell通過在建築物內佈置一個小型的低功率發射器/接收器,從而允許3G手機連接到本地蜂巢基站,並通過ADSL線路進行路由呼叫,可達到良好的室內涵蓋率及傳輸速度。
LTE即所謂長期演進技術,是新一代的行動通訊網路技術,底層採用OFDMA的技術,所以在干擾問題上適合採用通道分配的方法去解決。並且在細胞間的干擾問題,LTE已經採取部份頻率重覆使用的方法去解決。有了Femtocell的加入,雖然可以有效地提高頻譜效率,但也使得干擾問題變得更加複雜。然而目前關於femtocell以及細胞資源分配相關的研究結果多半建立在單一細胞的系統,而無法透過簡單地改變直接使用在多細胞的系統。而其他相關的研究,即使考量了多細胞的系統,由於對於不同細胞內的femtocell會造成的干擾沒有加以考慮,所以在細胞的涵蓋率以及傳輸速率上的效能不盡理想。 在此我們提出一個資源分配的方法,同時考量了細胞間及細胞內部的干擾問題,並且能有效降底femtocell會對於造成胞的涵蓋率以及傳輸速率上的效能上造成的干擾,同時保有femtocell所能造成的高頻譜效率的優勢。 | zh_TW |
dc.description.abstract | Femtocells have been recently proposed as a potential good solution to increase not only indoor radio coverage, but also system capacity. However, the interference problem driven by femtocells should been paid more attention to. There are two common methods to solve interference problem such as power control methods and channel allocation methods. OFDMA systems like LTE and WiMAX can assignment different subcarriers to subscribers which make them in a good potential in using channel allocation method to solve the interference problem.
However, interference in multi-cell system is much more complex than that in a single cell system and fewer related work discuss interference problem in a multi-cell system. The methods the proposed are good for single cell but will cause the coverage and cell-edge performance of macrocell down to a low level and new method should be proposed. In this work, we analyze the impact of Fractional Frequency Reuse on femtocell resource allocation, and then propose a new channel allocation method for femtocells and macrocells to work in multi-cell system without causing poor performance on cell-edge MSs and macorcell coverage. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T05:43:13Z (GMT). No. of bitstreams: 1 ntu-99-R93921033-1.pdf: 1566505 bytes, checksum: 724a40d672820f6c3eabdadc7b1e0ac8 (MD5) Previous issue date: 2010 | en |
dc.description.tableofcontents | 摘要…………………………………………………………………………………….. i
Abstract…………………………………………………………………. ii 誌謝………………………………………………………………………. iii Contents……………………………………………………...…………………………. iv List of Figures……………………………………………………………………. vii List of Tables…………………………………………………………………… x Chapter 1 Introduction………………………………………………………… 1 1.1 OFDMA system – LTE (Long Term Evolution) 3 1.1.1 Frame structure of LTE 3 1.1.2 Bandwidth and Resource Configuration of LTE 5 1.1.3 Depolyment Configurations of Femtocell (Home NodeB) and Macrocell in LTE 6 1.2 Interference Problem in Femtocells 7 1.3 Related Work 9 1.3.1 Co-channel allocation 10 1.3.2 Dedicated channel allocation 12 1.3.3 Partial co-channel allocation 12 1.4 Thesis Organization 13 Chapter 2 Motivation and System Model 14 2.1 Interference Problem in a Multi-cell LTE System 14 2.2 Motivation 15 2.3 System Model 17 2.3.1 System Model 17 2.3.2 Outdoor Path Loss model 18 2.3.3 Indoor Path Loss Model 19 2.4 Problem Statement 20 Chapter 3 FA: FFR-adapted Channel Allocation of Femtocells and Macrocells in a Multi-cell LTE System………………………………………………………….. 21 3.1 Fractional Frequency Reuse 21 3.2 Problem Analysis 23 3.3 FA: FFR-adapted Channel Allocation Method in Multi-cell System 32 3.3.1 Basic ideas 32 3.3.2 FFR-adapted Channel Allocation Method in Multi-cell System 33 3.3.3 Adaptive Allocation Protocol 35 Chapter 4 Performance Evaluation…………………………………………….. 37 4.1 Simulation Settings 37 4.2 Simulation Results 39 4.2.1 FA and dedicated channel allocation 40 4.2.2 FA and KR 44 Chapter 5 Conclusion…………………………………………………………… 48 Reference……………………………………………………………………… 49 | |
dc.language.iso | en | |
dc.title | 部份頻率重覆使用在長期演進技術多細胞網路中對於毫微微蜂巢式基地台資源管理之影響 | zh_TW |
dc.title | The Impact of Fractional Frequency Reuse on Femtocell Resource allocation in multi-cell LTE networks | en |
dc.type | Thesis | |
dc.date.schoolyear | 98-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 李安國,吳曉光,周承復,林風 | |
dc.subject.keyword | 毫微微蜂巢式基地台,家用基地台,長期演進技術,行動網路,部份頻率重覆使用, | zh_TW |
dc.subject.keyword | Femtocell,H(e)NB,LTE,mobile communication network,FFR, | en |
dc.relation.page | 50 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2010-08-20 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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