A trellis-coded chaotic modulation scheme

Recently, a chaotic modulation has been proposed and attracts many researchers´ attention because of some properties such as noise-like signal, nonlinearity, and pseudo-periodicity. The chaotic modulation is usually treated as a secure transmission scheme rather than an efficient scheme in terms of channel noise. In this paper, to achieve a secure and high-performance transmission, we propose a trellis-based chaotic modulation scheme (called as chaotic-coded modulation: CCM). The coding gain is obtained by the combination of trellis and chaotic convolutions and an adaptive decoding algorithm is used for this coded modulation. Simulation results show that the decoding scheme has a tradeoff between the performance and the decoding complexity.