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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林茂昭 | |
dc.contributor.author | Li-Wei Lin | en |
dc.contributor.author | 林立惟 | zh_TW |
dc.date.accessioned | 2021-06-15T02:29:52Z | - |
dc.date.available | 2010-08-20 | |
dc.date.copyright | 2009-08-20 | |
dc.date.issued | 2009 | |
dc.date.submitted | 2009-08-15 | |
dc.identifier.citation | [1] E. E. A. Sendonaris and B. Aazhang, User cooperation diversityvpart i: System
description,' IEEE Trans. Commun., vol. 51, no. 11, pp. 1927{1938, 2003. [2] E. E. A. Sendonaris and B. Aazhang, User cooperation diversityvpart ii: Imple- mentation aspects and performance analysis,' IEEE Trans. Commun., vol. 51, no. 11, pp. 1939{1948, 2003. [3] T. E. Hunter and A. Nosratinia, Diversity through coded cooperation,' IEEE Trans. Wireless Commun., vol. 5, pp. 283{289, February 2006. [4] T. Cover and A. Gamal, Capacity theorems for the relay channel,' IEEE Trans. Inform. Theory, vol. 25, pp. 572{84, 1979. [5] M. Yu and J. Li, Is amplify-and-forward practically better than decodeand- forward or vice versa?,' in Proc. ICASSP05, vol. 3, no. 1, pp. 18{23, 2005. [6] J. N. Laneman, G. W. Wornell, and D. N. C. Tse, An e±cient protocol for real- izing cooperative diversity in wireless networks,' Proc. IEEE ISIT, Washington, DC, p. 294, 2001. [7] A. Stefanov and E. Erkip, Cooperatuve coding for wireless networks,' IEEE Trans. Commun., vol. 52, no. 9, pp. 1470{1476, 2004. [8] J. Hagenauer, Rate-compatible punctured convolutional codes (rcpc codes) and their applications,' IEEE Trans. Commun., vol. 36, no. 4, pp. 389{400, 1988. [9] T. E. Hunter, Coded cooperation: a new framework for user cooperation in wireless systems,' Ph.D. dissertation,University of Texas at Dallas,Richardson, Texas, USA,2004. [10] A. Nosratinia, T. E. Hunter, and A. Hedayat, Cooperative communication in wireless networks,' IEEE Commun., vol. 42, pp. 74{80, Oct. 2004. [11] J. Boutros and E. Viterbo, Signal space diversity: a power- andbandwidth- e±cient diversity technique for the rayleigh fading channel,' IEEE Trans. In- form. Theory, vol. 44, pp. 1453{1467, 1998. [12] J. Yang and M. Ghosh, A cooperative modulation scheme for wireless relay nerworks,' Philips REsearch North America Briarcli® Manor,NY 10510,USA. [13] C. Berrou and A. Glavieux, Amplify-forward and decode-forward:the impact of location and capacity contour,' in IEEE Military Communications Conference (MILCOM), Atlantic City, NJ. [14] M. K. Simon and M.-S. Alouini., Digital communication over fading channels:a uni‾ed approach to performance analysis,' NewYork: John Wiley and Sons. [15] E. MalkamLaki and H. Leib, Evaluating the performance of convolutional codes over block fading channels,' IEEE Trans. Inform. Theory, vol. 45, no. 5, pp. 1643{1646, 1999. [16] S. Kallel and C. Leung, E±cient arq schemes with multiple copy decoding,' IEEE Trans. Commun., vol. 40, pp. 642{650, 1992. [17] A. Viterbi and J. K. Omura, Principles of digital communcation and coding,' New York: McGraw-Hill. [18] S. Benedetto, D. Divsalar, G. Montorsi, and F. Pollara, A soft-input soft-output app module for iterative decoding of concatenated codes,' IEEE Commun. Let- ters, vol. 1, pp. 22{24, Jan. 1997. [19] X. Li, A. Chindapol, and J. Ritcey, Bit-interleaved coded modulation with iterative decoding and 8psk signaling,' IEEE Trans. Commun., vol. 50, pp. 1250{ 1257, 2002. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43829 | - |
dc.description.abstract | 合作通訊已經被提出來對抗衰減通道造成的影響,在合作通訊中,每個使用
者在合作的過程中不僅傳送自己的資訊,也傳送其他使用者的資訊。為了高頻寬 的效率,我們提出一個使用 M ary 的區塊編碼調變的合作方式。 每一個使用者的編碼器將自己的資訊框和其他使用者的資訊框裡用區塊編 碼調變的方式結合在一起。藉著適當的延遲操作,每個使用者可以更正確的解碼 出其他使用者的資訊。在接收端,我們使用遞迴式的解碼。在解碼過程中,上一 時刻封包解碼出的事後機率將會被用來當作此時封包的事前機率。分析與模擬顯 示我們所提出的方式會有較好的表現尤其是在糟糕的內部使用者連結的條件之 下。 最後,我們將提出的方式應用在另一個實用且有趣的合作方式來達成更有效 空間與時間上的多樣性。 | zh_TW |
dc.description.abstract | Cooperative communication, in which each user in the cooperative process transmits not only its own information but also information of another user, has been proposed to combat the deleterious effects of fading channels. We present a coded cooperative scheme using M-ary modulation for high bandwidth efficiency. Each user’s encoder combines its own information frame and another user’s information frame by using block coded modulation (BCM). With a proper delay operation, each user could decode another user’s information more correctly. Iterative decoding is used at the destination receiver which means the a posteriori probability of the decoding packet last time is used as the a priori probability for decoding the current packet. The analyses and simulations show that our proposed scheme achieves better performance especially under worse inter-user links condition. At last, we apply the proposed scheme to achieve the spatial-time diversity for another practically interesting cooperative scenario. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T02:29:52Z (GMT). No. of bitstreams: 1 ntu-98-R96942111-1.pdf: 9214986 bytes, checksum: db9fb8af3d85c4d917a835a37e25c54b (MD5) Previous issue date: 2009 | en |
dc.description.tableofcontents | Contents
Abstract i List of Tables vi List of Figures v 1 INTRODUCTION 1 2 THE OVERVIEW OF WIRELESS COOPERATIVE COMMUNI- CATION 4 2.1 Historical Background . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Cooperative Communication System . . . . . . . . . . . . . . . . . . 6 2.3 Cooperative Signaling Method . . . . . . . . . . . . . . . . . . . . . . 7 3 THE PERFORMANCE ANALYSIS OF CONVENTIONAL CODED COOPERATION 17 3.1 Pairwise Error Probability Analysis . . . . . . . . . . . . . . . . . . . 17 3.2 Cooperative Case Probabilities Analysis . . . . . . . . . . . . . . . . 20 3.3 End-to-End Error Analysis . . . . . . . . . . . . . . . . . . . . . . . . 23 4 THE PROPOSED SCHEME 26 4.1 BCM Arrangement 8PSK-based for Inter-user link . . . . . . . . . . . 27 4.1.1 Encoding Process . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.1.2 Decoding Process . . . . . . . . . . . . . . . . . . . . . . . . . 30 4.1.3 Theoretic Coding Gain Analysis and Numerical Result . . . . 33 4.2 BCM Arrangement 16QAM-based for Inter-user link . . . . . . . . . 42 4.2.1 Encoding Process . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.2.2 Decoding Process . . . . . . . . . . . . . . . . . . . . . . . . . 43 4.2.3 Theoretic Coding Gain Analysis and Numerical Result . . . . 44 4.3 The Proposed Scheme For Another Scenario . . . . . . . . . . . . . . 46 4.3.1 System Description . . . . . . . . . . . . . . . . . . . . . . . . 46 4.3.2 Numerical Result . . . . . . . . . . . . . . . . . . . . . . . . . 49 5 CONCLUSION 51 Bibliography 52 | |
dc.language.iso | en | |
dc.title | 以遞迴式及區塊編碼調變改善交互使用者連結之合作方式 | zh_TW |
dc.title | A Cooperative Scheme using Iterative Decoding with BCM-Improved Inter-user Links | en |
dc.type | Thesis | |
dc.date.schoolyear | 97-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 呂忠津,蘇賜麟,趙啟超,李世凱 | |
dc.subject.keyword | 合作通訊,區塊編碼調變,多樣性增益, | zh_TW |
dc.subject.keyword | cooperative communication,bcm,diversity gain, | en |
dc.relation.page | 54 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2009-08-17 | |
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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