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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/24749完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 葉丙成 | |
| dc.contributor.author | Yu-Ruei Lin | en |
| dc.contributor.author | 林鈺睿 | zh_TW |
| dc.date.accessioned | 2021-06-08T05:56:02Z | - |
| dc.date.copyright | 2008-02-18 | |
| dc.date.issued | 2008 | |
| dc.date.submitted | 2008-02-04 | |
| dc.identifier.citation | [1] S. Kandukuri and S. Boyd, ”Optimal Power Control in Interference-Limited Fading Wireless Channels With Outage-Probability Specifications, ” IEEE Trans. Wireless Comm., vol. 1, pp. 46-55, Jan. 2002.
[2] R. D. Yates and C. Y. Huang, “Integrated power control and base station assignment, ” IEEE Trans. Veh. Tech., vol. 44, pp. 638–644, Aug. 1995. [3] J. M. Aein, “ Power balancing in systems employing frequency reuse, ” COMSAT Tech. Rev., pp. 277-299, 1973. [4] H. Alavi and R. W. Nettleton, “Downstream power control for a spread spectrum cellular mobile radio system, “ IEEE. Globecom-82, pp. 84-88, 1982. [5] J. Zander, “Distributed cochannel interference control in cellular radio systems, “ IEEE Trans. Veh. Tech., vol. 41, pp. 305-311, Aug. 1992. [6] S. A. Grandhi, R. Vijayan, and D. J. Goodman, “A distributed algorithm for power control in cellular radio systems, “ Proc. Comm. Allerton Conf., 1992. [7] S. Ariyavisitakul, “SIR based power control in a CDMA system, ” IEEE. Globecom, vol.2, pp. 868–873, Dec. 1992 [8] H. Alavi and R. Nettleton, “Downstream power control for a spread spectrum cellular mobile radio system, ” IEEE. Globecom, pp. 84–88, Nov. 1982. [9] R. Nettleton and H. Alavi, “Power control for a spread-spectrum cellular mobile radio system, ” Proc. Veh. Tech. Conf., pp. 242–246, May 1983. [10] J. Aein, “Power balancing in systems employing frequency reuse, ” COMSAT Tech. Rev., vol. 3, no. 2, pp. 277–300, 1973. [11] L. Hanzo, “OFDM and MC-CDMA for Broadband Multi-User Communications WLANs and Broadcasting,” John Wiley & Sons, 2003. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/24749 | - |
| dc.description.abstract | 在本論文當中，我們考慮多頻正交分工系統在瑞雷衰減環境中的無線資源分配。由於多頻正交系統的頻率偏移之故，各子載波並非完全正交。因此子載波間會互相干擾。本論文首先推導出子載波在頻率偏移與瑞雷衰減效應下的訊擾比及失效機率，進而得到多頻正交分工系統的整體傳輸率。本論文考慮三種提升系統整體傳輸率之無線資源分配問題：傳輸功率分配、傳輸位元分配、傳輸功率暨位元分配。在功率分配問題上，我們採用幾何規劃的技巧以得到最佳化傳輸功率分配。在另一方面針對傳輸位元分配及傳輸功率暨位元分配的問題，我們則是提出了遞迴式以得到此類資源分配問題的近最佳化解。 | zh_TW |
| dc.description.abstract | In this thesis, we consider the resource allocation for OFDM system with frequency offset under Rayleigh fading. The signal-to-interference ratio (SIR) and the resulting outage probability of each carrier is derived for the OFDM system. With the outage probability expression, the overall throughput of the OFDM system is obtained as well. Three different resource allocation problem: power allocation, bit allocation, and joint power-bit allocation, are explored to maximize the overall throughput for the OFDM system. For power allocation problem, the optimal power allocation is obtained by applying geometric programming technique. On the other hand, due to the difficulty of integer programming, iterative algorithms are proposed to find near optimal bit allocation and joint power-bit allocation for the OFDM system respectively. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T05:56:02Z (GMT). No. of bitstreams: 1 ntu-97-R93942051-1.pdf: 2129263 bytes, checksum: c00c355cc353f4ffef725e0a9090927f (MD5) Previous issue date: 2008 | en |
| dc.description.tableofcontents | 1 Introduction 1
2 Power Allocation 3 2.1 Introduction………………………………………… 3 2.2 Fundamentals of OFDM System……………………... 3 2.3 System Model……………………………………….. ..6 2.4 Intercarrier Interference (ICI)……………………….. ….7 2.5 Problem Formulation………………………………... ..8 2.5.1 Outage Probability……………………………………….. 8 2.5.2 Certainty Equivalent Margin (CEM)…………………… 11 2.5.3 Problem Formulation…………………………………… 11 2.6 Allocation Algorithm………………………………... 12 2.7 Numerical Example…………………………………. 15 3 Bit Allocation 17 3.1 Introduction………………………………………….. 17 3.2 System Model……………………………………….. 17 3.3 Problem Formulation of Bit Allocation……………... 21 3.4 Allocation Algorithm of Bit Allocation……………... 22 3.5 Problem Formulation of Joint Power-Bit Allocation... 23 3.6 Allocation Algorithm of Joint Power-Bit Allocation.. 24 3.7 Numerical Example…………………………………. 26 4 Conclusion 30 4.1 Summary of Contribution…………………………….30 4.2 Future Work…………………………………………. 30 Reference 31 | |
| dc.language.iso | en | |
| dc.subject | 傳輸率 | zh_TW |
| dc.subject | 多頻正交分工 | zh_TW |
| dc.subject | 失效機率 | zh_TW |
| dc.subject | 功率非配 | zh_TW |
| dc.subject | 位元分配 | zh_TW |
| dc.subject | bit allocation | en |
| dc.subject | Throughput | en |
| dc.subject | OFDM | en |
| dc.subject | outage probability | en |
| dc.subject | power allocation | en |
| dc.title | 正交分頻多工資源分配之遞迴式演算法 | zh_TW |
| dc.title | Iterative Resource Allocation Algorithms for OFDM | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 96-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 魏宏宇,謝宏昀,周俊廷 | |
| dc.subject.keyword | 多頻正交分工,失效機率,功率非配,位元分配,傳輸率, | zh_TW |
| dc.subject.keyword | OFDM,outage probability,power allocation,bit allocation,Throughput, | en |
| dc.relation.page | 31 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2008-02-04 | |
| 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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| ntu-97-1.pdf 未授權公開取用 | 2.08 MB | Adobe PDF |
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