Chaos M-ary modulation and demodulation method based on Hamilton oscillator and its application in communication

Fu, Yongqing; Li, Xingyuan; Li, Yanan; Yang, Wei; Song, Hailiang
March 2013
Chaos;Mar2013, Vol. 23 Issue 1, p013111
Academic Journal
Chaotic communication has aroused general interests in recent years, but its communication effect is not ideal with the restriction of chaos synchronization. In this paper a new chaos M-ary digital modulation and demodulation method is proposed. By using region controllable characteristics of spatiotemporal chaos Hamilton map in phase plane and chaos unique characteristic, which is sensitive to initial value, zone mapping method is proposed. It establishes the map relationship between M-ary digital information and the region of Hamilton map phase plane, thus the M-ary information chaos modulation is realized. In addition, zone partition demodulation method is proposed based on the structure characteristic of Hamilton modulated information, which separates M-ary information from phase trajectory of chaotic Hamilton map, and the theory analysis of zone partition demodulator's boundary range is given. Finally, the communication system based on the two methods is constructed on the personal computer. The simulation shows that in high speed transmission communications and with no chaos synchronization circumstance, the proposed chaotic M-ary modulation and demodulation method has outperformed some conventional M-ary modulation methods, such as quadrature phase shift keying and M-ary pulse amplitude modulation in bit error rate. Besides, it has performance improvement in bandwidth efficiency, transmission efficiency and anti-noise performance, and the system complexity is low and chaos signal is easy to generate.


Related Articles

  • Applied Chaos: Linearizing Multibit ΔΣ Converts for Telecom Applications.  // Journal of Concrete & Applicable Mathematics;Jul2011, Vol. 9 Issue 3, p197 

    No abstract available.

  • Synchronization of coupled van der pole and Kislov-Dmitriev self-oscillators. Emel'yanova, Yu.; Kuznetsov, A. // Technical Physics;Apr2011, Vol. 56 Issue 4, p435 

    The problem of interaction of self-oscillating elements of different origin is considered for a coupled van der Pole oscillator and Kislov-Dmitriev generator. Domains with different types of dynamics in the space of parameters are indicated taking into account the possibility of broadband...

  • Effect of common noise on phase synchronization in coupled chaotic oscillators. Park, Kwangho; Ying-Cheng Lai; Krishnamoorthy, Satish; Kandangath, Anil // Chaos;Mar2007, Vol. 17 Issue 1, p013105 

    We report a general phenomenon concerning the effect of noise on phase synchronization in coupled chaotic oscillators: the average phase-synchronization time exhibits a nonmonotonic behavior with the noise amplitude. In particular, we find that the time exhibits a local minimum for relatively...

  • Fundamentals of synchronization in chaotic systems, concepts, and applications. Pecora, Louis M.; Carroll, Thomas L.; Johnson, Gregg A.; Mar, Douglas J.; Heagy, James F. // Chaos;Dec97, Vol. 7 Issue 4, p520 

    Examines fundamentals of chaotic synchronization. Recognized potential for communications systems; Subfield of nonlinear dynamics; Geometry of synchronization and stability criteria; Notion of synchronous substitution; Synchronization hyperplanes; Cascaded drive-response synchronization;...

  • Compound synchronization of four memristor chaotic oscillator systems and secure communication. Sun, Junwei; Shen, Yi; Yin, Quan; Xu, Chengjie // Chaos;Mar2013, Vol. 23 Issue 1, p013140 

    In this paper, a novel kind of compound synchronization among four chaotic systems is investigated, where the drive systems have been conceptually divided into two categories: scaling drive systems and base drive systems. Firstly, a sufficient condition is obtained to ensure compound...

  • Cell Searching in the UMTS Wideband CDMA Layer. Litvin, Louis // Wireless Design & Development;Jan2004, Vol. 12 Issue 1, p32 

    Discusses the process involved in cell search operation in the universal mobile telecommunications system (UMTS) wideband code division multiple access layer. Description of the UMTS physical layer; Structure of the primary synchronization channel; Scrambling code determination.

  • Top Execs Push Broadband. Vaughan, Allyson // Wireless Week;01/28/2002, Vol. 8 Issue 4, p34 

    Discusses the urge given by officials in the telecommunication industry for a policy on broadband access in the U.S. Identification of the officials that have cited the need for a broadband policy; Effort taken by the Computer Systems Policy Project for a national broadband policy; Status of the...

  • The bandwidth bandwagon. Miller, Elizabeth Starr // Telephony;04/03/2000, Vol. 238 Issue 14, p9 

    Focuses on the broadband communications market in the United States (US). Efforts of Broadwing to bring optical services in the US; Plans of Broadwing to deploy Corvis' CorWave products across its nationwide networks beginning with the Western half of the US; Details on the launching of...

  • An Overview of Broadband Technologies. Sharathchandra, Chitra // Rural Telecommunications;Jan/Feb2000, Vol. 19 Issue 1, p36 

    Discusses the application of broadband technology in the United States. Definition of broadband technology; Characteristics of the technology; Variants of the digital subscriber line.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics