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| Adaptive Peak-to-average Power Ratio Reduction Method for Prolate Spheroidal Wave Function Orthogonal Modulation Signal |
| WANG Hongxing LU Faping LIU Chuanhui LIU Xiao |
(Department of Electrical and Information Engineering, Naval Aeronautical and Astronautical University, Yantai 264001, China)
(Key Laboratory on Signal & Information Processing of Shandong Provience, Yantai 264001, China) |
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Abstract A new companding transform based on μ-law companding schemes is proposed for the reduction of Peak-to-Average Power Ratio (PAPR) of Prolate Spheroidal Wave Function (PSWF) orthogonal modulation signal, which causes serious degradation in performance when a nonlinear Power Amplifier (PA) is used. According to the input signal, the method adjusts the compression parameters automatically, which can guarantee the average signal power constant before and after compression, compression signal peak. Both the mathematical deduction and simulation results show that the proposed method can effectively reduce PAPR of PSWF orthogonal modulation signal, and effectively improve the power spectrum density of the signal and the BER performance of system under AWGN channel. The PAPR of compressed modulation signal decrease about 2.1 dB in comparison to the original modulation signal, when the parameter μ=1 and Complementary Cumulative Distribution Function CCDF=10-4.
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Received: 29 January 2016
Published: 08 September 2016
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| Fund: The National Natural Science Foundation of China (60772056), The “Taishan Scholar” Special Construction Funds Funded Project of Shandong Province (ts20081130) |
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Corresponding Authors:
LU Faping
E-mail: lufaping@163.com
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| [1] |
FLAMMER C. Spheroidal Wave Functions[M]. California: Stanford University Press, 1956: 16-19.
|
| [2] |
赵志勇, 王红星, 刘锡国, 等. 正交椭圆球面波函数脉冲调制方法[J]. 电子与信息学报, 2012, 34(10): 2331-2335. doi: 10.3724/SP.J.1146.2012.00384.
|
|
ZHAO Z Y, WANG H X, LIU X G, et al. Orthogonal prolate spheroidal wave functions modulation method[J]. Journal of Electronics & Information Technology, 2012, 34(10): 2331-2335. doi: 10.3724/SP.J.1146.2012.00384.
|
| [3] |
OSIPOVE A and ROKHLIN V. On the evaluation of prolate spheroidal wave functions and associated quadrature rules[J]. Appliedand Computational Harmonic Analysis, 2014, 36(1): 108-142. doi:10.1016/j.acha.2013.04.002.
|
| [4] |
王红星, 赵志勇, 刘锡国, 等. 非正弦时域正交调制方法[P]. 中国专利, ZL200810159238.3, 2011-02-02.
|
|
WANG H X, ZHAO Z Y, LIU X G, et al. The nonsinusoidal orthogonal modulation in time domain[P]. China Patent, ZL2008159238.3, 2011-02-02.
|
| [5] |
舒根春, 王红星. 降低基于PSWF的非正弦调制信号PAR方法[J]. 信息传输与接入技术, 2011, 37(1): 22-24.
|
|
SHU G C and WANG H X. Method of reducing PAR of non-sinusoidal modulated signals based on PSWF[J]. Radio Communications Technology, 2011, 37(1): 22-24.
|
| [6] |
陈昭男, 王红星, 钟佩琳, 等. 基于Givens旋转变换的PSWF调制信号PAPR抑制方法[J]. 电子与信息学报, 2013, 35(6): 1406-1412. doi: 10.3724/SP.J.1146.2012.01221.
|
|
CHEN Z N, WANG H X, ZHONG P L, et al. The PAPR reduction method for PSWF based on givens rotation transformation[J]. Journal of Electronics & Information Technology, 2013, 35(6): 1406-1412. doi: 10.3724/SP.J. 1146.2012.01221.
|
| [7] |
WANG X B, TJHUNG T, and NG C S. Reduction of peak-to-average power ratio of OFDM system using a companding technique[J]. IEEE Transactions on Broadcasting, 1999, 45(3): 303-307. doi: 10.1109/11.796272.
|
| [8] |
HUANG X, LU J, ZHENG J L, et al. Reduction of peak-to-average power ratio of OFDM signals with using companding transform[J]. Electronics Letters, 2001, 37(8): 506-507. doi: 10.1049/el:20010345.
|
| [9] |
SAKRAN H, SHOKAIR M, and ELAXM A. A new peak-to-average power reduction technique in the OFDM system usingμ-law compander[C]. IEEE International Symposium on Wireless Communication Systems (ISWCS), Regkjavik, Iceland, 2008: 386-390. doi: 10.1109/ISWC.S, 2008.4726083.
|
| [10] |
HASHIM S J, ABAS A F, VARAHRAM P, et al. Reduction of peak to average power ratio in coherent optical orthogonal frequency division multiplexing using companding transform[C]. Region 10 Symposium, Kuala Lumpur, Malaysian, 2014: 177-180. doi: 10.1109/TENCONSpring.2014.6863020.
|
| [11] |
ANJAIAH C, PRASAD P, and KTISHNA H. Mu-law companded PTS for PAPR reduction in OFDM systems[C]. IEEE International Conference on Electrical, Computer and Communication Technologies (ICECCT), Coimbatore, India, 2015: 1-4. doi: 10.1109/ICECCT.2015.7226139.
|
| [12] |
CHANDRASEKHAR R, KAMARAJU M, SAIRAM M V S, et al. PAPR reduction using combination of precoding with Mu-law companding technique for MIMO-OFDM systems[C]. IEEE International Conference on Communications and Signal Processing, Melmaruvathur, India, 2015: 0479-0483. doi: 10.1109/ICCSP.2015.7322430.
|
| [13] |
SALEH A A M. Frequency-independent and frequency- dependent nonlinear models of TWT amplifiers[J]. IEEE Transactions on Communications, 1981, 29(11): 1715-1720. doi: 10.1109/TCOM.1981.1094911.
|
| [14] |
杨超, 王勇, 葛建华. 联合迭代滤波与压扩参数优化的OFDM 信号峰平比抑制[J]. 通信学报, 2015, 36(4): 2515-2520. doi: 10.3724/SP.J.1146.2013.01820.
|
|
YANG C, WANG Y, and GE J H. Companding transform technique combined with iterative filtering for reducing PAPR of OFDM signals[J]. Journal on Communications, 2015, 36(4): 2515-2520. doi: 10.3724/SP.J.1146.2013.01820.
|
| [15] |
JIANG T and WU Y Y. An overview: peak-to-average power ratio reduction techniques for OFDM signals [J]. IEEE Transactions on Broadcasting, 2011, 54(2): 257-268. doi: 10.1109/TBC.2008.915770.
|
|
|
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