M-ary hybrid modulation DCSK scheme in MIMO model

被引：0
|
作者：
Chen X. [1 ,2 ]
Wang N. [1 ]
Ding D. [1 ]
Zhang G. [1 ]
Lu Y. [2 ]
机构：
[1] College of Electronic Information Engineering, Anhui University, Hefei
[2] Anhui Province Key Laboratory of Simulation and Design for Electronic Information System, Hefei Normal University, Hefei
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2021年 / 43卷 / 07期
关键词：
Bit error rate (BER); Differential chaotic shift keying (DCSK); M-ary hybrid modulation; Multiple input multiple output (MIMO);
D O I：
10.12305/j.issn.1001-506X.2021.07.31
中图分类号：
学科分类号：
摘要：
In order to improve the bit error rate performance of multiple input multiple output difference chaotic shift keying (MIMO-DCSK) system, an M-ary hybrid modulation MIMO-DCSK (MHM-MIMO-DCSK) is proposed. Firstly, multi bit information in one frame is split and modulated by chaotic spread spectrum code and index code respectively to achieve higher transmission efficiency. Secondly, the receiver uses the quasi-orthogonal property of chaotic sequence to eliminate interference of multi antenna and multi channel. Finally, the results of correlation calculation at each receiving antenna are superimposed by the equal gain combining algorithm, so as to obtain the full diversity gain of multi-path MIMO system without channel state information. Simulation results show that the proposed MHM-MIMO-DCSK has better BER performance than the existing M-ary MIMO-DCSK, especially in the case of high-order modulation. © 2021, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：1989 / 1994
页数：5
相关论文
共 22 条
  • [1] CAI X M, XU W K, MIAO M Y, Et al., Design and performance analysis of a new M-ary differential chaos shift keying with index, IEEE Trans. on Wireless Communication, 19, 2, pp. 845-858, (2020)
  • [2] LIU Z F, ZHANG L, WU Z Q, Et al., A secure and robust frequency and time diversity aided OFDM-DCSK modulation system not requiring channel state information, IEEE Trans. on Communication, 68, 3, pp. 1684-1697, (2020)
  • [3] LIU Z F, ZHANG L, WU Z Q., Reliable and secure pre-coding OFDM-DCSK design for practical cognitive radio systems with the carrier frequency offset, IEEE Trans. on Cognitive Communications and Networking, 6, 1, pp. 189-200, (2020)
  • [4] MA H, CAI G F, FANG Y, Et al., Design of a superposition coding PPM-DCSK system for downlink multi-user transmission, IEEE Trans. on Vehicular Technology, 69, 2, pp. 1666-1678, (2020)
  • [5] ZHANG G, ZHAO C C, ZHANG T Q., Performance analysis of short reference orthogonal multiuser differential chaotic shift keying scheme, Journal of Electronics & Information Technology, 41, 9, pp. 2055-2062, (2020)
  • [6] MIAO M Y, WANG L, KATZ M, Et al., Hybrid modulations scheme combining PPM with differential chaos shift keying modulation, IEEE Wireless Communication Letter, 8, 2, pp. 340-343, (2019)
  • [7] CAI X M, XU W K, ZHANG R F, Et al., A multilevel code shifted differential chaos shift keying system with M-ary modulation, IEEE Trans. on Circuits System-II, 66, 8, pp. 1451-1455, (2019)
  • [8] ZHANG G, CHEN H X, ZHANG T Q., Multiuser orthogonal differential chaos shift keying communication system, Systems Engineering and Electronics, 41, 3, pp. 667-673, (2019)
  • [9] XU L, LIN W K, LIN W H, Et al., Short-reference differential chaos shift keying system based on scrambling matrix, Systems Engineering and Electronics, 41, 10, pp. 2365-2370, (2019)
  • [10] WANG L, ZHANG C X, CHEN G R., Performance of an SIMO FM-DCSK communication system, IEEE Trans. on Circuits and Systems-II, 55, 5, pp. 457-461, (2008)
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