Advanced Search
Article Contents
Article Contents

On the design of full duplex wireless system with chaotic sequences

  • * Corresponding author: Ruwu Xiao

    * Corresponding author: Ruwu Xiao 

The first author is supported by the NNSFC under grant No. 61371072

Abstract Full Text(HTML) Figure(3) / Table(3) Related Papers Cited by
  • This paper proposes a novel approach for full duplex using chaotic sequences which is known as the asynchronous code-division duplex (Async-CDD) system. The Async-CDD system can transmit and receive signals at the same time and in the same frequency channel without time slot synchronization. The data rate of the Async-CDD system is 8 times higher than the conventional CDD system and is the same as a non-spreading system. The property of low block cross-correlation of the chaotic sequence allows the Async-CDD system achieve duplex interference suppression at any duplex delay. And the huge number of available code words/blocks of the chaotic sequence allows the Async-CDD system increase the data rate by increasing the number of multiplexed sub-channels. When both of the code length of the orthogonal chaotic code and the number of multiplexed sub-channels are 128, the orthogonal chaotic code provides 30.40 dBc self-interference suppression in average, which is 6.99 dB better than the orthogonal Gold code.

    Mathematics Subject Classification: Primary: 58F15, 58F17; Secondary: 53C35.


    \begin{equation} \\ \end{equation}
  • 加载中
  • Figure 1.  Application Scenario of the CDD System

    Figure 2.  The block-correlation performance of the OG code

    Figure 3.  The block-correlation performance of the OC code

    Table 1.  The Average Duplex Self-interference Suppression Performance with Different $N$

    Code Type$N$ $Q$ ${C}_{aver}$ (dBc) ${C}_{worst}$ (dBc)
     | Show Table
    DownLoad: CSV

    Table 2.  System parameter of the compared system

    $N$$W$Max. $Q$ $Q$
    Async-CDD with OG code128-12816
    Async-CDD with OC code128-12816
     | Show Table
    DownLoad: CSV

    Table 3.  The self-interference suppression performance with different delay

    $Q$$N$The number of $C(p, q)$
    $\leq$ 24 dBc
    The number of $C(p, q)$
    $\leq$ 28 dBc
    The number of $C(p, q)$
    $\leq$ 30 dBc
    CDD with161280168256
    ZCZ code
    with OG code
    with OC code
     | Show Table
    DownLoad: CSV
  •   A. L. A. Aboltins, Selection and performance analysis of chaotic spreading sequences for DS-CDMA systems, in Advances in Wireless and Optical Communications (RTUWO), 2016, 38–45.
      E. Ahmed  and  A. M. Eltawil , All-digital self-interference cancellation technique for full-duplex systems, IEEE Transactions on Wireless Communications, 14 (2015) , 3519-3532. 
      M. Duarte , C. Dick  and  A. Sabharwal , Experiment-driven characterization of full-duplex wireless systems, IEEE Transactions on Wireless Communications, 11 (2012) , 4296-4307. 
      M. Duarte , A. Sabharwal , V. Aggarwal , R. Jana , K. K. Ramakrishnan , C. W. Rice  and  N. K. Shankaranarayanan , Design and characterization of a full-duplex multiantenna system for WiFi networks, IEEE Transactions on Vehicular Technology, 63 (2014) , 1160-1177. 
      E. Everett , A. Sahai  and  A. Sabharwal , Passive self-interference suppression for full-duplex infrastructure nodes, IEEE Transactions on Wireless Communications, 13 (2014) , 680-694. 
      Y. Hua , Y. Ma , A. Gholian , Y. Li , A. C. Cirik  and  P. Liang , Radio self-interference cancellation by transmit beamforming, all-analog cancellation and blind digital tuning, Signal Processing, 108 (2015) , 322-340. 
      F. Jian  and  S. Dandan , Complex Network Theory and Its Application Research on P2P Networks, Applied Mathematics and Nonlinear Sciences, 1 (2016) , 45-52. 
      B. Jiao , M. Wen , M. Ma  and  H. V. Poor , Spatial modulated full duplex, IEEE Wireless Communications Letters, 3 (2014) , 641-644. 
      X. Jin, M. Ma, B. Jiao and W. C. Y. Lee, Studies on spectral efficiency of the cdd system, in Vehicular Technology Conference Fall, 2009, 1–5.
      A. S. B. T. Krishna, Generation of biphase sequences using different logistic maps, in International Conference on Communication and Signal Processing (ICCSP), 2016, 2102–2104.
      P. Kumar and S. Chakrabarti, A new overloading scheme for cellular DS-CDMA using orthogonal Gold codes, in Vehicular Technology Conference (VTC), 2008, 1042–1046.
      W. C. Y. Lee, The most spectrum-efficient duplexing system: CDD, IEEE Communications Magazine, 40 (2002), 163–166.
      A. Murua  and  J. Sanz-Serna , Vibrational resonance: a study with high-order word-series averaging, Applied Mathematics and Nonlinear Sciences, 1 (2016) , 239-246. 
      M. Pal and S. Chattopadhyay, A novel orthogonal minimum cross-correlation spreading code in CDMA system, in International Conference on Emerging Trends in Robotics and Communication Technologies, 2010, 80–84.
      J. S. Pereira and H. J. A. D. Silva, M-ary mutually orthogonal complementary gold codes, in Signal Processing Conference, 2009 European, 2009, 1636–1640.
      J. G. Proakis, Digital Communications Fourth Edition, McGraw-Hill Companies, Inc., New York, NY, 1998.
      S. Shao, X. Quan, Y. Shen and Y. Tang, Effect of phase noise on digital self-interference cancellation in wireless full duplex, 2759–2763.
      Y. Shen , J. Zhou  and  Y. Tang , Digital self-interference cancellation in wireless co-time and co-frequency full-duplex system, Wireless Personal Communications, 82 (2015) , 2557-2565. 
      X. H. Tang , P. Z. Fan  and  S. Matsufuji , Lower bounds on correlation of spreading sequence set with low or zero correlation zone, Electronics Letters, 36 (2002) , 551-552. 
  • 加载中
Open Access Under a Creative Commons license




Article Metrics

HTML views(1783) PDF downloads(222) Cited by(0)

Access History

Other Articles By Authors



    DownLoad:  Full-Size Img  PowerPoint