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The scheme of 1 Gbit/s random sequence generated by chaotic laser as spreading code is proposed. Theoretical analysis indicates that the pseudo random sequence exhibited periodic behavior is eliminated by the random sequence and the capability of spreading code is enlarged. Meanwhile, the communication security can be improved by variable spreading code. The corresponding spread spectrum system is numerically simulated by Simulink software and the results demonstrate that the greater the used spreading gain, the lower the obtained error rate will be when the information speed is constant, which is consistent with the theoretical results. The anti-jamming ability of the spread spectrum system is strengthened and the security is enhanced compared with those of the traditional spreading system.
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Keywords:
- spread spectrum communication /
- random sequence /
- chaos laser
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[34] Zhang J B, Zhang J Z, Yang Y B, Liang J S, Wang Y C 2010 Acta Phys. Sin. 59 7679 (in Chinese) [张继兵、 张建忠、 杨毅彪、 梁君生、 王云才 2010 59 7679]
[35] [36] Wang A B, Wang Y C, He H C 2008 IEEE Photon. Technol. Lett. 20 1633
[37] -
[1] Kurosawa K, Sato F, Sakata T, Kishimoto W 2000 IEEE Trans. Inform. Theory 46 694
[2] [3] Zhong Z, Zhao X T, Ren G H 2009 Inform. Technol. J. 8 1076
[4] [5] Wang X G, Zhan M, Gong X F, Lai C H, Lai Y C 2005 Phys. Lett. A 334 30
[6] Yu Z B, Feng J C 2008 Acta Phys. Sin. 57 1409 (in Chinese)[余振标、 冯久超 2008 57 1409]
[7] [8] [9] Petrie C S, Connelly J A 2000 IEEE Trans. Circuits Syst. I 47 615
[10] Bucci M, Germani L, Luzzi R, Trifiletti A, Varanonuovo M 2003 IEEE Trans. Computers 52 403
[11] [12] Liao J, Liang C, Wei Y J, Wu L A, Pan S H 2001 Acta Phys. Sin. 50 467 (in Chinese) [廖 静、 梁 创、 魏亚军、 吴令安、 潘少华 2001 50 467]
[13] [14] Feng M M, Qin X L, Zhou C Y, Xiong L, Ding L E 2003 Acta Phys. Sin. 52 72 (in Chinese) [冯明明、 秦小林、 周春源、 熊利、 丁良恩 2003 52 72]
[15] [16] [17] Huang Z, Zhou T, Bai G Q, Chen H Y 2004 Chin. J. Semicond. 25 333 (in Chinese) [黄 谆、 周 涛、 白国强、 陈弘毅 2004半导体学报 25 333]
[18] [19] Zhou Q, Hu Y, Liao X F 2008 Acta Phys. Sin. 57 5413 (in Chinese) [周 庆、 胡 月、 廖晓峰 2008 57 5413]
[20] Dynes J F, Yuan Z L, Sharpe A W, Shields A J 2008 Appl. Phys. Lett. 93 031109
[21] [22] [23] Wang Y C, Tang J H, Zhang M J 2007 Chinese Patent ZL200710062140.1 (in Chinese) [王云才、 汤君华、 张明江 2007 中国发明专利 ZL200710062140.1]
[24] Uchida A, Amano K, Inoue M, Hirano K, Naito S, Someya H, Owada I, Kurashige T, Shiki M, Yoshimori S, Yoshimura K, Davis P 2008 Nat. Photon. 2 728
[25] [26] Hirano K, Amano K, Uchida A, Naito S, Inoue M, Yoshimori S, Yoshimura K, Davis P 2009 IEEE J. Quantum Electron. 45 1367
[27] [28] [29] Reidler I, Aviad Y, Rosenbluh M, Kanter I 2009 Phys. Rev. Lett. 103 024102
[30] Kanter I, Aviad Y, Reidler I, Cohen E, Rosenbluh M 2010 Nat. Photon. 4 58
[31] [32] [33] Kanter I, Butkovski M, Peleg Y, Zigzag M, Aviad Y, Reidler I, Rosenbluh M, Kinzel W 2010 Opt. Express 18 17
[34] Zhang J B, Zhang J Z, Yang Y B, Liang J S, Wang Y C 2010 Acta Phys. Sin. 59 7679 (in Chinese) [张继兵、 张建忠、 杨毅彪、 梁君生、 王云才 2010 59 7679]
[35] [36] Wang A B, Wang Y C, He H C 2008 IEEE Photon. Technol. Lett. 20 1633
[37]
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