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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/37727完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 李學智(Hsueh-Jyh Li) | |
| dc.contributor.author | Chuan-Ling Yeh | en |
| dc.contributor.author | 葉娟伶 | zh_TW |
| dc.date.accessioned | 2021-06-13T15:40:40Z | - |
| dc.date.available | 2013-07-14 | |
| dc.date.copyright | 2008-07-14 | |
| dc.date.issued | 2008 | |
| dc.date.submitted | 2008-07-07 | |
| dc.identifier.citation | [1] A. Sendonaris, E. Erkip, and B. Aazhang, “User Cooperation Diversity Part I and Part II,” IEEE Trans. Commun., vol. 51, no. 11, Nov. 2003, pp. 1927–48.
[2] A. Stefanov and E. Erkip, “On the Performance Analysis of Cooperative Space-Time Systems,” Proc. IEEE WCNC, March 2003, pp. 729–34. [3] R. U. Nabar, H. Bolcskei, and F.W. Kneubuhler, “Fading relay channels: performance limits and space-time signal design.” IEEE Journal on Selected Areas in Communications, vol. 22, no. 6, pp. 1099 – 109, August 2004. [4] J. N. Laneman, D. N. C. Tse, and G. W. Wornell, “Cooperative diversity in wireless networks: Efficient protocols and outage behavior.” IEEE Transactions on Information Theory, vol. 50, no. 12, pp. 3062 – 80, December 2004. [5] A. Nosratinia, T. Hunter, and A. Hedayat, “Cooperative communication in wireless networks,” IEEE Commun. Mag., vol. 42, no. 10, pp. 68–73, October 2004. [6] J. N. Laneman, G. W. Wornell, and D. N. C. Tse, “An Efficient Protocol for Realizing Cooperative Diversity in Wireless Networks,” Proc. IEEE ISIT, Washington, DC, June 2001, p. 294. [7] E. Telatar, “Capacity of multi-antenna Gaussian channels,” EuropeanTrans. Telecomm. (ETT), vol. 10, no. 6, pp. 585–596, Nov. 1999. [8] T.M. Cover and J.A Thomas, Element of information theory. New York: Wiley, 1991 [9] E. Stauffer, O¨ zgu¨r Oyman, R. Narasimhan, and Arogyaswami Paulraj, “Finite-SNR Diversity-Multiplexing Tradeoffs in Fading Relay Channels.” IEEE Journal on selected areas in communications, vol. 25, no. 2, February 2007 [10] A. S. Avestimehr, D. N. C. Tse, “Outage capacity of the fading relay channel in the low SNR regime,” IEEE Trans. Inf. Theory, vol. 53, pp. 1401-1415, April 2007. [11] J. N. Laneman, “Cooperative diversity in wireless network: Algorithms and architectures,” PhD dissertation, MIT publication, Sept. 2002. [12] I. Krikidis, J. Thompson, S. McLaughlin, and N. Goertz “Optimization Issues for Cooperative Amplify-and-Forward Systems over Block-fading Channels,” 2007 [13] B. Zhao, M. C. Valenti, “Practical relay networks: a generalization of hybrid-ARQ,” IEEE J. Selec. Areas Commun., vol. 23, pp. 7-18, Jan. 2005 [14] V. Tarokh, N. Seshadri, and A. R. Calderbank, “Space–time codes for high data rate wireless communication: Performance criterion and code construction,” IEEE Trans. Inform. Theory, vol. 44, pp. 744–765, Mar. 1998. [15] B. Suard, G. Xu, and T. Kailath, “Uplink channel capacity of spacedivision- multiple-access schemes,” IEEE Trans. Inform. Theory, vol. 44, pp. 1468–1476, July 1998. [16] R. Narasimhan, “Finite-SNR diversity performance of rate-adaptive MIMO systems,” Globecom 2005, St Louis, Mo, 2005. [17] M. O. Hasna, M. –S. Alouini, “Optimal power allocation for relayed transmission over Rayleigh-fading channels,” IEEE Trans. Wirel. Commun., vol. 3, pp. 1999–2004, Nov 2004. [18] A. Firag, L. M. Garth, “Adaptive Decoding and Equalization for Time Reversal-Space Time Block-Coded Cooperative Diversity Systems,” IEEE. Commun., 2008. [19] S. Yang, J. –C. Belfiore, “Toward the oprimal Amplify-and-forward cooperative diversity scheme,” IEEE Trans. Inf. Theory, vol. 53, pp. 3114–3126, Sept 2007. [20] A. S. Avestimehr, D. N. C. Tse, “Outage Capacity of the fading relay channel in the low SNR regime,” IEEE Trans. Inf. Theory, vol. 53, pp.1401-1415, April 2007. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/37727 | - |
| dc.description.abstract | 在本篇論文中，我們考慮一種半雙工(half-duplex)的三個端點間合作式無線通訊系統，並且分析了在以時槽為單位的分組衰落 (block-fading) 通道環境下的兩種不同方法的合作式通訊 (Cooperative communication)。一種是放大前向 (Amplify-and-Forward) 的合作方法，另外一種是解碼前向 (Decode-and-Forward) 的合作方法。
我們將討論一種在合作式通訊網路非正交的傳送方法，它的定義是來源端會持續的在整個合作式的時間區段內傳送待傳的資料到終端。我們假設，每一個時槽單位是準靜態(quasi-static)的分組衰落通道環境，就是指通道的狀態在一個時槽會維持常數，但是在下一個時槽就會改變。在這種假設下，去重送我們要傳的資料。 這種新的傳送方法，在選擇性解碼前向以及放大前向的這兩種合作式方法下，都在比較低的系統數據速率下會有比較好的效能。從模擬的結果也發現，它跟傳統的非正交傳送方法會有一個系統數據速率的臨界轉變值，而這種數值代表，比這個數據速率小的系統，用新的協定會有比較好的效果，反之，還是傳統的非正交傳法會有比較好的效果。而另外一個討論的議題就是功率分配的問題。我們利用中斷概率的數學式算出最佳的功率分配係數來最佳化我們的系統效能。 | zh_TW |
| dc.description.abstract | In this thesis, we consider a cooperative communication system in a wireless network with three nodes and limited by the half-duplex and total power constrained. We discuss two cooperative strategies which mean the Amplify-and-Forward (AF) relaying and Decode-and-forward (DF) relaying in slot-based block-fading environments.
We focus on the non-orthogonal transmission which is defined that the source terminal keeps transmission during the whole cooperative time slots. We assume a classical quasi-static slot-based block-fading channel where the channel keeps constant for one time slot and changes the statement during the second time slot. Under this assumption, we proposed a new protocol that the source terminal retransmits the same data during the second time slot. This proposed protocol based on the selective DF and the AF cooperative modes is superior to the previous non-orthogonal scheme for the low spectral efficiency. By the simulation result, there is a boundary system data rate between the proposed protocol and the classical non-orthogonal protocol. Therefore, we may select a suitable mode between the two protocols based on the boundary rate to improve the system performance. Another issue is the optimal power allocation problem. The power allocation strategy uses the expression of the outage probability to optimize the criterion of the power allocation parameters. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T15:40:40Z (GMT). No. of bitstreams: 1 ntu-97-J95921043-1.pdf: 770898 bytes, checksum: e17138c1aa2ae7cd53a7a37820f22c2c (MD5) Previous issue date: 2008 | en |
| dc.description.tableofcontents | Contents
Abstract Ⅰ Contents Ⅲ List of Figures VII List of Tables XI Chapter 1 Introduction 1 1.1 Overview of Cooperative Communication System 1 1.2 Motivation and Organization of the Thesis 3 Chapter 2 Background and System Model 5 2.1 Review of Cooperative Relaying Schemes 5 2.1.1 Amplify-and-Forward Method (AF) 6 2.1.2 Decode-and-Forward Method (DF) 8 2.1.3 Selection Relaying 9 2.2 Transmission Protocols of Cooperative Communication 10 2.2.1 General Setup and Protocol Descriptions 10 2.2.2 Channel and System Model 12 Chapter 3 Outage Capacity Analysis for the Amplify-and-Forward (AF) Relaying System over Block-fading Channel 17 3.1 Input and Output Relations in the AF Mode 17 3.2 Mutual Information of AF-based protocols 20 3.3 Power Allocation of AF-based protocols 24 3.4 Numerical Results and Summary 30 Chapter 4 Outage Capacity Analysis for the Decode-and-Forward (DF) Relaying System over Block-fading Channel 35 4.1 Input and Output Relations in the DF Mode 35 4.2 Maximum Average Mutual Information 38 4.3 Power Allocation of DF-based protocols 47 4.4 Simulation Results and Summary 59 4.4.1 Simulation Results 59 4.4.2 Summary and Implementation Issues 63 Chapter 5 Conclusions 65 References 67 | |
| dc.language.iso | en | |
| dc.subject | 非正交傳送 | zh_TW |
| dc.subject | 合作式通訊 | zh_TW |
| dc.subject | 中繼通道 | zh_TW |
| dc.subject | 中斷概率 | zh_TW |
| dc.subject | Relay channels | en |
| dc.subject | Cooperative communication | en |
| dc.subject | Outage probability | en |
| dc.subject | Non-orthogonal transmission | en |
| dc.title | 在分組衰落通道下非正交合作式通訊網路的傳送方法 | zh_TW |
| dc.title | A Non-orthogonal Cooperative Transmission Scheme Based on Block-fading Channel | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 96-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蘇炫榮(Hsuan-Jung Su),闕志達(Tzi-Dar Chiueh) | |
| dc.subject.keyword | 合作式通訊,中繼通道,非正交傳送,中斷概率, | zh_TW |
| dc.subject.keyword | Cooperative communication,Relay channels,Non-orthogonal transmission,Outage probability, | en |
| dc.relation.page | 68 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2008-07-08 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電機工程學研究所 | zh_TW |
| 顯示於系所單位： | 電機工程學系 | |
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