A new hyperchaotic sequence for DS-UWB systems

Author

Wang, Guangyi ; He, Hailian

Author_Institution

Sch. of Electron. Inf., Hangzhou Dianzi Univ., Hangzhou, China

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

54

Lastpage

58

Abstract

This paper proposes a novel hyperchaotic PN (pseudo-noise) sequence, which is generated by a novel Rossler hyperchaotic system. Its correlation characteristics are analyzed via numerical simulations. Then the PN sequence is applied to the direct sequence ultra-wideband (DS-UWB) system to enhance its antinoise performance. The model of chaos-based DS-UWB communication system is established in the purpose of analyzing the performance of its reception. Using the hyperchaotic PN sequence as spread spectrum address code and assuming ideal synchronization at the receivers, the bit error rate (BER) of multi-user DS-UWB system in additive Gaussian white noise(AGWN) channel is derived in terms of the noisy intensity and the number of users. Simulation results show that the hyperchaotic sequence is a PN sequence of good performance and more excellent than the chaotic sequence.

Keywords

AWGN channels; chaotic communication; error statistics; multiuser channels; random sequences; spread spectrum communication; ultra wideband communication; AGWN channel; Rossler hyperchaotic system; additive Gaussian white noise channel; bit error rate; chaos-based DS-UWB communication system; direct sequence ultra-wideband system; multiuser system; pseudo-noise sequence; Bit error rate; Chaotic communication; Communication systems; Gaussian noise; Helium; Mobile communication; Multiple access interference; Pulse modulation; Spread spectrum communication; Ultra wideband technology; Bit Error Rate(BER); Ultra-Wide-band (UWB); hyperchaotic sequence;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on

Conference_Location

Guangzhou

Print_ISBN

978-1-4244-2423-8

Electronic_ISBN

978-1-4244-2424-5

Type

conf

DOI

10.1109/ICCS.2008.4737142

Filename

4737142