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2004•Telecommunication EngineeringRequires access

Optimal Chaotic Binary Spreading Sequences for Asynchronous CDMA System

Boxi Wu

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Abstract

In order to expand the group of sequences and improve the system performance of asynchronous CDMA communication, study on the characteristic of optimal chaotic sequence is conducted. On this base, some criteria on selecting spreading sequences are proposed and implemented to generate binary chaotic spreading sequences with optimal performance. Numerical simulation and statistical analysis show that these sequences are more adapted for asynchronous CDMA system than conventional Gold sequence.

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What this paper is about

In order to expand the group of sequences and improve the system performance of asynchronous CDMA communication, study on the characteristic of optimal chaotic sequence is conducted. On this base, some criteria on selecting spreading sequences are proposed and implemented to generate binary chaotic spreading sequences with optimal performance. Numerical simulation and statistical analysis show that these sequences are more adapted for asynchronous CDMA system than conventional Gold sequence.

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Available abstract

In order to expand the group of sequences and improve the system performance of asynchronous CDMA communication, study on the characteristic of optimal chaotic sequence is conducted. On this base, some criteria on selecting spreading sequences are proposed and implemented to generate binary chaotic spreading sequences with optimal performance. Numerical simulation and statistical analysis show that these sequences are more adapted for asynchronous CDMA system than conventional Gold sequence.

Key concepts: Asynchronous communication, Chaotic, Pseudorandom binary sequence, Code division multiple access, Sequence (biology), Gold code, Binary number, Computer science

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