Design and simulation of soft decision decoding based on chaotic M-ary spread spectrum system
Ruopeng Liu,
Pengyi Wang,
Xiduo Wang
Abstract:In this paper, chaos sequence is used to replace the traditional spread spectrum sequence. From the perspective of the communication partner, a new method of generating the initial value of chaotic sequence is proposed, which is more suitable for the multi-base spread spectrum system and easy to extract. In order to further improve the error performance of the system and ensure the integrity of the system, an improved suboptimal soft information extraction method based on log-likelihood ratio (LLR) is proposed… Show more
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