A Communication Method Based on Time Division Modulation Weighted Fractional Fourier Transform

doi:10.3969/j.issn.1000-1093.2020.07.013

Abstract

Abstract: The weighted fractional Fourier transform (4-WFRFT) is a new physical layer secret communication method, which can greatly improve the anti-modulation identification of the communication system. For the deficiencies of single-parameter weighted fractional Fourier transform, a time division modulation weighted fractional Fourier transform (TM-WFRFT) communication method is proposed. The proposed method adopts the strategy of different parity modulation and makes full use of the rotation factor to encrypt dynamically, so the security of the 4-WFRFT signal can be improved by time-division data weighted fractional Fourier modulation. The simulated results show that TM-WFRFT can significantly improve the 4-WFRFT reliability and significantly reduce the ability of the eavesdropper to decipher, thus improving the effectiveness of signal transmission and further enhancing the confidentiality of information transmission. Key

Key words: securitycommunication, weightedfractionalFouriertransform, timedivisionmodulation, anti-interceptionperformance

CLC Number:

TN975

ZHANG Xiaoyu， FENG Yongxin. A Communication Method Based on Time Division Modulation Weighted Fractional Fourier Transform[J]. Acta Armamentarii, 2020, 41(7): 1360-1367.

References

［1］ FANG X J, SHA X J, MEI L. Guaranteeing wireless communication secrecy via a WFRFT-based cooperative system［J］. China Communications, 2015, 2015(9): 76-89.
［2］代健, 李泽, 郝新红. 基于目标联合特征提取的脉冲多普勒引信抗干扰方法［J］.兵工学报, 2019, 40(2):225-234.
DAI J, LI Z, HAO X H. Anti-jamming method for pulse Doppler fuze based on joint feature extraction of target signal［J］. Acta Armamentarri, 2019, 40(2):225-234.(in Chinese)
［3］ SHA X J. Hybrid carrier CDMA communication system based on weighted-type fractional Fourier transform［J］. IEEE Communications Letters, 2012, 16(4):432-435.
［4］ FANG X J, SHA X J, LI Y. Secret communication using parallel combinatory spreading WFRFT［J］. IEEE Communications Letters, 2015, 19(1): 31-33.
［5］徐瑞阳, 达新宇, 梁源, 等. 基于跳频的改进加权分数阶傅里叶变换［J］. 华中科技大学学报(自然科学版), 2019, 47(2): 30-35.
XU R Y, DA X Y, LIANG Y,et al. Improved weighted fraction Fourier transform based on frequency hopping［J］. Journal of Huazhong University of Science & Technology(Nature Science Edition), 2019, 47(2):30-35.(in Chinese)
［6］翟东, 达新宇, 梁源. WFRFT-MIMO卫星抗截获通信系统［J］. 空军工程大学学报(自然科学版), 2018, 19(2):26-32.
ZHAI D, DA X Y, LIANG Y. Satellite anti-interception communication system with WFRFT and MIMO［J］. Journal of Air Force Engineering University (Nature Science Edition), 2018, 19(2):26-32.(in Chinese)
［7］ WANG Z D, MEI L,WANG X L. BER analysis of hybrid carrier system based on WFRFT with carrier frequency offset［J］. Electronics Letters, 2015, 51(21): 1708-1709.
［8］ WANG K, SHA X J, LI Y. Hybrid carrier modulation with time-domain windows and iterative equalization over underwater acoustic channels［J］. IEEE Communications Letters, 2013, 17(8):31-34.
［9］ LIU F, WANG L, XIE J,et al. MP-WFRFT and chaotic scrambling aided directional modulation technique for physical layer security enhancement［J］.IEEE Access, 2019,7: 74459-74470.
［10］ LIANG Y, DA X Y, XU R Y, et al.Research on constellation-splitting criterion in multiple parameters WFRFT modulations［J］. IEEE Access, 2018, 6:34354-34363.
［11］ LIANG Y,XIANG X, SUN Y,et al. Novel modulation recognition for WFRFT-based system using 4th-order cumulants ［J］. IEEE Access, 2019,7:86018-86025.
［12］ WANG X L, MEI L, WANG Z D,et al. On the probability density function of the real and imaginary parts in WFRFT signals［J］. China Communications, 2016, 2016(9): 44-52.
［13］ WANG Z D, MEI L, SHA X J. BER analysis of WFRFT precoded OFDM and GFDM waveforms with an integer time 0ffset［J］. IEEE Transactions on Vehicular Technology, 2018,67(10):9097-9111.
［14］ WANG Z D, MEI L, SHA X J. BER analysis of STBC hybrid carrier system based on WFRFT with frequency domain equalization［J］. Science China, 2018, 61(1): 082301.
［15］ WANG Z D, MEI L, WANG X L. On the performance of hybrid carrier system based on WFRFT with power allocation［J］.IEEE Access, 2018,6:29231-29240.
［16］ FANG X J, SHA X J, LI Y. MP-WFRFT and constellation scrambling based physical layer security system［J］. China Communications, 2016, 2016(2): 138-145.
［17］陈青, 孙海信, 齐洁. 加权分数阶傅里叶变换在混合系统中的应用［J］. 哈尔滨工业大学学报, 2016, 48(5):100-104.
CHEN Q, SUN H X, QI J. Application of weighted fractional Fourier transform in hybrid system［J］. Journal of Harbin Institute of Technology, 2016, 48(5):100-104.(in Chinese)
［18］ KESHARI S, MODAN S G. Color image encryption scheme based on 4-weighted fractional Fourier transform［J］. Journal of Electronic Imaging, 2012, 21(3): 033018.

［19］ LIU F, FENG Y X. A Fast acquisition algorithm overcoming fuzz problems for TDDM spread spectrum signal ［J］. Mathematical Problems in Engineering, 2014, 2014(1):362061.

第41卷第7期2020 年7月
兵工学报ACTA ARMAMENTARII
Vol.41No.7Jul.2020

[1]	ZHANG Xiaoyu， FENG Yongxin， QIAN Bo. A Joint Estimation Method for PN Sequence Period of BOC Signals [J]. Acta Armamentarii, 2020, 41(8): 1549-1557.
[2]	ZHANG Yong-shun， ZHU Wei-gang， MENG Xiang-hang， JIA Xin， ZENG Chuang-zhan， WANG Man-xi. Comb Jamming Mitigation in Frequency-hopping Spread Spectrum Communications via Block Sparse Bayesian Learning [J]. Acta Armamentarii, 2018, 39(9): 1864-1872.
[3]	YANG Xiao-ming, TAO Ran. Automatic Identification of Interferences in Direct Sequence Spread Spectrum Communication System [J]. Acta Armamentarii, 2008, 29(9): 1078-1082.