Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/6832
標題: 利用線性碼分別結合SLM和PTS來降低OFDM系統的峰均值比
Combined Linear Block Codes with SLM and PTS to reduce PAPR in OFDM
作者: 李維祥
Li, Oei-Siang
關鍵字: 峰均值比;PAPR
出版社: 電機工程學系所
引用: [1] J.A.C. Bingham, "Multicarrier modulation for data transmission:an idea whose time has come," IEEE Commun.Mag., pp.5-14, 1990. [2] M.Alard and R.Lasalle, "Principles of Modulation and Channel Coding for Digital Broadcasting for Mobile Receivers, "EBU Rev., vol.224, Aug.1987, pp.47-69. [3] U.Reimers, "Digital Video Brocasting, " IEEE Commun. Mag., vol.36, no.10, June 1998, pp.104-110 [4] B.R.Saltzberg, "Comparison of Single-Carrier and Multitone Digital Modulation for ADSL Applicatons," IEEE Commun.Mag., vol.36, no.11, Nov.1998, pp.114-121. [5] S.H.Muller and J.B.Huber, " OFDM with reduced peak-to-average power ratio by optimum combination of partial transmit sequences,"Electron.Lett., vol.33, pp.368-369, Feb.1997. [6] S.H.Muller and J.B.Huber, "A Novel Peak Power Reduction Scheme for OFDM,"Proc. IEEE PIMRC''97, Helsinki, Finland, Sept.1997, pp.1090-1094. [7] A.D.S. Jaya lath and C. Tell ambura, " Adaptive PTS Approach for Reduction of Peak-to-Average Power Ratio of OFDM signal,"Elect.Lett., vol.36, no.14, July 2000, pp.1226-1228. [8] C. Tellambura." Improved Phased Factor Computation for the PAR Reduction of an OFDM Signal Using, " IEEE Commun. Lett., vol.5, no.4, Apr.2001, pp.135-137. [9] R.W.Bauml, R.F.H. Fisher, and J.B. Huber, "Reducing the peak-to-average power ratio of mullticarriers modulation by selected mapping," Electron.Lett.32, pp.2056-2057, Oct.1996. [10] S.H.Muller and J.B.Huber, "A Comparision of Peak Reduction Schemes for OFDM," Proc. IEEE GLOBECOM'' 97, Bhoenix, AZ, Nov.1997, pp.1-5. [11] H.Breilig, S.H. Muller-Weinfurtner. and J.B. Huber, " SLM Peak-Power-Reduction without Explicit side information," IEEE Commun.Lett., vol.5, no.6, June 2001, pp.239-241. [12] J.A.Davis and J.Jedwab, "Peak and to mean power controal in OFDM, Golay complementary sequences and Reed-Muller codes," IEEE Trans.Inform.Theory, vol.33, pp.2397-2417, Nov.1997. [13] A.E.Jones, T.A.Wilkinson, and S.K. Barton, "Block coding scheme for reduction of peak to mean envelop power ratio of multicarrier transmission scheme," Electron.lett., vol.30, pp.2098-2099, Dec.1994. [14] R.O''neill and L.B.Lopes, "Envelope Variations and Spectral Splatter in Clipped Mullticarrier Signals," Proc.IEEE PIMRC''95.Toronto, Canada, Sept.1995, pp.71-75. [15] S.Roman, Coding and Information Theory Springer-Verlag, New York 1992. [16] F.J.Macwilliams and N.J.A. sloane, The Theory of Error-Correcting Codes Amsterdam, The netherlamds: North-Holland, 1986. [17] D.E.Muller, "Applications of Boolean Algebra to Switching Circuits Design Codes," IBM J.Res, Dev.14, July 1970. [18] E.prange, "Cyclic Error-Correcting Codes in Two Synbols," AFCRC-TN-57, 103, Air Force Cambridge Research Center, Cambridge, Mass., September 1957. [19] Keyeongcheol Yang and Seok-ll Chang, "Peak-to-average power control in OFDM using standard arrays of linear block codes," IEEE Commun.Lett., vol.7, Apr.2003, pp.174-176.
摘要: 
講到多載波多傳送, 大家就會想到OFDM, 這是一項有很久歷史的技術,最近這項技術越來越受歡迎被用在無線通訊的運用上。
而近來OFDM技術令大家感與趣的主要歸因於數位信號的發展。
由於多載波傳輸中存在著一個缺點即是傳送信號的高PAPR。
我們提出一個觀念去降低OFDM中的PAPR就是利用線性碼中的標準陣列,我們的結構可看成是將SLM及PTS做修改的版本,
在編碼的觀念裡利用降低碼率的方法從陪集首項(coset
leaders)中選擇最小的PAPR當做傳送,由於我們把陪集首項當成一般的攪亂(scrambling)動作,因此我們不需要額外傳送外掛資訊(side information)。
在接收端方面可籍由徵狀(syndrom)解碼解回。
最後模擬結果可看我們的提出的方法在降低PAPR也有不錯的效能。

Multicarrier transmission, also known as orthogonal frequency division multiplexing(OFDM), is a technique with a long history that has recently seen rising popularity in wireless and wireline applications. One of the major drawbacks of multicarrier transmission is the high peak-to-average power ratio(PAPR) of the transmit signal.
We propose a concept to reduce the PAPR in OFDM systems by using the stadard arrays of linear block codes. Our scheme may be regarded as modified versions of the
selective mapping(SLM) and Partial Transmit Sequence(PTS), which are to reduce the PAPR by reducing code rate and selecting minimum PAPR from several coset leaders as the transmit signal. Because the coset leaders of a linear code are used for scrambling in our scheme, no side information is required to be transmitted and the
received signal can be easily decoded by syndrome decoding. Final our simulation results show that our scheme has good performance in PAPR reduction.
URI: http://hdl.handle.net/11455/6832
其他識別: U0005-2407200616521400
Appears in Collections:電機工程學系所

Show full item record
 

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.