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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 馮世邁(See-May Phoong) | |
| dc.contributor.author | Kuo-Tai Chiu | en |
| dc.contributor.author | 邱國泰 | zh_TW |
| dc.date.accessioned | 2021-06-13T05:52:33Z | - |
| dc.date.available | 2009-07-12 | |
| dc.date.copyright | 2006-07-12 | |
| dc.date.issued | 2006 | |
| dc.date.submitted | 2006-07-04 | |
| dc.identifier.citation | Bibliography
[1] L. J. Cimini, “Analysis and simulation of a digital mobile channel using orthogonal frequency division multiple access,” IEEE Transactions on Communication, volume 33, issue 7, pp.665-675, July 1985. [2] J. A. C. Bingham, “Multicarrier modulation for data transmission: an idea whose time has come,” IEEE Communication Magazine, volume 28, issue 5, pp.5-14, May 1990. [3] A. N. Akansu, et al., “Orthogonal transmultiplexers in communication: a review,” IEEE Transactions on Signal Processing, volume 46, issue 4, pp.979-995, April 1998. [4] American National Standards Institute, “Network and customer installation interfaces: Asymmetric digitalsubscriber line (ADSL) metallic interface,” T1.413, 1998. [5] ISO/IEC, IEEE Standard 802.11a, 1999. [6] European Telecommunication Standards Institute, “Digital audio broadcasting (DAB) to mobile protable and fixed receivers,” EST 300 401, 1994. [7] European Telecommunication Standards Institute, “Digital video broadcasting; framing, structure, channel coding and modulation for digital terrestrial television (DVB-T),” ETS 300 744, 1997. 105 [8] D. Falconer, S.L. Ariyavisitakul, A. Benyamin-Seeyar and B. Edison, “Frequency domain equalization for single-carrier broadband wireless system,” IEEE Communication Magazine, volume 40, issue 4, pp.58-66, April 2002. [9] S. Baig, N. D. Gohar, “A discrete multitone transceiver at the heart of the PHY layer of an in-home power line communication local area network,” IEEE Communication Magazine, pp.48-53, April 2003. [10] J. Campello, “Optimal discrete bit loading for multicarrier modulation Systems,” IEEE International Symposium on Information Theory, pp.193, August 1998. [11] ISO/IEC, IEEE Std. 802.16, 2004. [12] Yuan-Pei Lin and See-May Phoong, “BER minimized OFDM systems with channel independent precoders,” IEEE Transaction on Signal Processing, volume 51, issue 9, pp.2369-2380, September 2003. [13] Yuan-Pei Lin and See-May Phoong, “MMSE OFDM and prefixed single carrier systems: BER analysis,” IEEE Processings on Acoustics, Speech, and Signal Processing, volume 4, pp.229-232, April 2003. [14] Yanwu Ding, Timothy N. Davidson and K. Max Wong, “On improving the BER performance of rate-adaptive block transceivers, with applications to DMT,” IEEE Global Telecommunications Conference, volume 3, pp. 1654-1658, Dec. 2003. [15] M.Park, H. Jun, J. Cho, N. Cho, D. Hong and C. Kang, “PAPR reduction in OFDM transmission using Hadamard transform,” IEEE ICC 2000, volume 1, pp. 430-433, June 2000. [16] D. Kim and G. L. St¨uber, “Clipping noise mitigation of OFDM by decision-aided reconstruction,” IEEE Communications Letters, volume 3, issue 1, pp. 4-6, Jan. 1999. [17] P. Schniter, “Low-complexity equalization of OFDM in doubly-selective channels,” IEEE Transaction on Signal Processing, volume 52, issue 4, pp.1002-1011, April 2004. [18] S. Ahmed, M. Sellathurai, S. Lambotharan, and J. A. Chambers, “Lowcomplexity iterative method of equalization for single carrier with cyclic prefix in doubly selective channels,” IEEE Signal Processing Letters, volume 13, issue 1, pp.5-8, January 2006. [19] Geert Carron, Reto Ness, Luc Deneire, Liesbet Van der Perrre and Marc Engels, “Comparison of two modulation techniques using frequency domain processing for in-house networks,” IEEE Transaction on Consumer Electronics, volume 47, issue 1, pp.63-72, February 2001. [20] G. Caire, G. Taricco, E. Biglieri, “Bit-interleaved coded modulation,” IEEE Transaction on Information Theory, volume 44, issue 3, pp.927-946, May 1998. [21] Li-Hsiang Lee; Performance study of OFDM and SC-CP systems in nonideal transmission environment, 2005. [22] Wen-Tong Kuo; Windowed discrete multitone system using eigenfilter design, 2003. [23] J. G. Proakis, Digital communication, 4th edition, McGraw-Hill, 2000. [24] A. V. Oppenheim, R. W. Schafer, J. R. Buck, Discrete-time signal processing, 2nd edition, Prentice-Hall, 1999. [25] S. Ross, A First Course in Probability, 6th edition, Prentice-Hall, 2002. [26] H.Stark, J. W. Woods, Probability and Random Processes with Application to signal Processing, 3rd edition, Prentice-Hall, 2002. [27] A. R. S. Bahai, B. R. Saltzberg, M. Ergen, Multi-carrier digital communications theory and applications of OFDM, 2nd edition, Springer, 2004. [28] http://mathworld.wolfram.com/NormalProductDistribution.html | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/34045 | - |
| dc.description.abstract | 傳統的正交頻率分割多工系統使用離散複立葉轉換的前置編碼矩陣是被大家所廣泛的認知為前置迴旋碼單載波系統。然而，在這個系統下，位元必須一致的被指派到每個子通道中。現在我們嘗試利用前置編碼矩陣將子通道分割成若干群。接著，我們可以用不同的位元配置到每個群。 | zh_TW |
| dc.description.abstract | The OFDM system has been successfully applied to wireless digital communications over the past several years. It is well-known that OFDM systems suffer from the noise enhancement problem due to channel spectral nulls and the PAPR problem. Recently, a new system called SC-CP (single carrier with cyclic prefix) system is receiving growing attention as another wireless transmission technique. This is because the SC-CP system can mitigate the noise enhancement problem and it doesn’t suffer from PAPR problem.
Bit-loading algorithm is a powerful technique to improve BER performance in time-invariant channel. However, this technique can’t be applied to the SC-CP system which is a special kind of precoded OFDM systems. In this thesis, we propose a precoded OFDM system which can enjoy the advantage of the bit-loading algorithm. We will study the BER performance, PAPR reduction and the implementation complexity of the transmitter in our proposed system. We also carry out some simulations in time-invariant and time-variant channels. Besides, we also compare those systems with FEC and interleaving. Our simulation results validate that our proposed system can provide better BER performance than the OFDM and the SC-CP systems. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T05:52:33Z (GMT). No. of bitstreams: 1 ntu-95-R93942084-1.pdf: 1512892 bytes, checksum: f0e42816a73854805e09b32a5234b6e8 (MD5) Previous issue date: 2006 | en |
| dc.description.tableofcontents | List of Tables viii
List of Figures x Abstract xv Acknowledgements xvii 1 Introduction 1 2 OFDM, SCCP and Precoded OFDM Systems 5 2.1 OFDM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.1 Basic System Structure . . . . . . . . . . . . . . . . . . . . . . 6 2.1.2 Performance of OFDM Systems . . . . . . . . . . . . . . . . . 9 2.2 SC-CP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.1 Basic System Structure . . . . . . . . . . . . . . . . . . . . . . 11 2.2.2 Performance of SC-CP with ZF FEQ . . . . . . . . . . . . . . 12 2.2.3 SC-CP Systems with MMSE FEQ . . . . . . . . . . . . . . . . 13 2.3 Precoded OFDM Systems . . . . . . . . . . . . . . . . . . . . . . . . 15 2.3.1 Basic System Structure . . . . . . . . . . . . . . . . . . . . . . 15 2.3.2 Performance of Precoded OFDM Systems with ZF FEQ . . . 16 2.3.3 Precoded OFDM Systems with MMSE FEQ . . . . . . . . . . 17 2.4 BER Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.4.1 ZF FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 2.4.2 MMSE FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 2.5 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 3 Precoded OFDM System with Bit-loading 31 3.1 Bit Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 3.1.1 Optimal Bit-loading . . . . . . . . . . . . . . . . . . . . . . . 32 3.1.2 Greedy Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . 34 3.2 Precoded OFDM System with Bit-loading . . . . . . . . . . . . . . . 35 3.2.1 Basic Systems Structure . . . . . . . . . . . . . . . . . . . . . 35 3.2.2 Greedy Algorithm for Precoded OFDM Systems . . . . . . . . 36 3.2.3 Performance of Bit-loaded Precoded OFDM Systems with ZF FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 3.2.4 Performance of Bit-loaded Precoded OFDM Systems with MMSE FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3.3 Implementation and PAPR . . . . . . . . . . . . . . . . . . . . . . . . 39 3.4 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4 Analysis in Doubly-selective channel 55 4.1 Channel Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 4.2 Precoded OFDM Systems . . . . . . . . . . . . . . . . . . . . . . . . 59 4.2.1 Conventional ZF FEQ . . . . . . . . . . . . . . . . . . . . . . 59 4.2.2 MMSE FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 4.3 Precoded OFDM System with Bit-loading . . . . . . . . . . . . . . . 65 4.3.1 Conventional ZF FEQ . . . . . . . . . . . . . . . . . . . . . . 66 4.3.2 MMSE FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 4.4 BER Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 4.4.1 Conventional ZF FEQ . . . . . . . . . . . . . . . . . . . . . . 67 4.4.2 MMSE FEQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 4.5 Simulation Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 5 System Performance with FEC and Bit Interleaver 81 5.1 Coding Scheme . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 5.2 Simulation Results in Time-invariant Channels . . . . . . . . . . . . . 84 5.3 Simulation Results in Time-variant Channels . . . . . . . . . . . . . . 85 6 Conclusion 99 A QAM Modulation 101 Bibliography 105 | |
| dc.language.iso | en | |
| dc.subject | 位元負載 | zh_TW |
| dc.subject | 前置編碼 | zh_TW |
| dc.subject | 正交頻率分割多工系統 | zh_TW |
| dc.subject | Precoder | en |
| dc.subject | OFDM | en |
| dc.subject | Bit Loading | en |
| dc.title | 前置編碼對於正交頻率分割多工系統使用位元負載之分析 | zh_TW |
| dc.title | Study of Precoders for OFDM Systems with Bit Loading | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 94-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 蘇炫榮,王晉良,祁忠勇 | |
| dc.subject.keyword | 正交頻率分割多工系統,前置編碼,位元負載, | zh_TW |
| dc.subject.keyword | OFDM,Precoder,Bit Loading, | en |
| dc.relation.page | 108 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2006-07-05 | |
| 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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