Summary
International Symposium on Nonlinear Theory and its Applications
2009
Session Number:B1L-C
Session:
Number:B1L-C1
M-ary Modulation Scheme Using Separation of Chaotic Dynamics for Noncoherent Chaos-Based Communications
Shintaro ARAI, Yoshifumi NISHIO, Takaya YAMAZATO, Shinji OZAWA,
pp.-
Publication Date:2009/10/18
Online ISSN:2188-5079
Summary:
This paper proposes a new M-ary modulation scheme for noncoherent chaos-based communications. A chaotic sequence is successive based on the chaotic dynamics. Without the successive sequence based on the chaotic dynamics, general noncoherent systems are very difficult to demodulate the data. However, we consider that the systematic separation and the reconstruction of the chaotic dynamics can be applied as additional information. Namely, M-ary data symbols can be expressed by separating the chaotic dynamics purposely. We carry out computer simulations of the proposed scheme and confirm that a saving of over 3?4 dB is realized in transmitter energy by increasing M.