Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:C4
Session:
Number:C4-5
Spreading Sequences with Negative Auto-correlations Generated by LFSRs Based on Chaos Theory of Modulo-2 Added Sequences
Yasunori Miyazaki, Akio Tsuneda, Takahiro Inoue,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
Spreading sequences with exponentially vanishing negative auto-correlations can reduce bit error rate in asynchronous DS/CDMA systems compared with the conventional M-sequences and Gold Sequences generated by linear feedback shift registers (LFSRs). In this paper, we design spreading sequences with negative (but not exponentially vanishing) auto-correlations to be generated by LFSRs, which is based on the chaos theory for the Bernoulli chaotic map and modulo-2 added binary sequences. By numerical experiments, we investigate statistical properties (auto-/cross-correlations) of the proposed sequences.