Flexible Chaotic UWB Communication System With Adjustable Channel Bandwidth in CMOS Technology

Author

Han, Sang-Min ; Popov, Oleg ; Dmitriev, Alexander S.

Author_Institution

Dept. of Inf. & Commun. Eng., Soonchunhyang Univ., Asan

Volume

56

Issue

10

fYear

2008

Firstpage

2229

Lastpage

2236

Abstract

A flexible chaotic ultra-wideband (UWB) communication system with an adjustable channel spectrum is proposed. Since the chaotic UWB bandwidth (BW) is independent of the data rate, the system band plan can be flexibly organized for various communication environments. The proposed system can overcome the spectral inefficiency and RF power wastage that is typically observed in conventional methods by utilizing adjustable channel allocations. A novel chaotic signal generator is designed with an adjustable frequency range of 3.5-4.5 GHz and BW of 70-620 MHz. The chaotic UWB transceiver system is implemented in CMOS 0.18-mum technology, and it features tunable chaotic signal generation and adaptive detection. The system performance is evaluated for digital data transmission rates of up to 15 Mb/s.

Keywords

chaos; signal generators; ultra wideband communication; wireless channels; CMOS technology; adaptive detection; adjustable channel bandwidth; adjustable channel spectrum; bandwidth 70 MHz to 620 MHz; flexible chaotic UWB communication system; flexible chaotic ultra-wideband communication system; frequency 3.5 GHz to 4.5 GHz; tunable chaotic signal generation; CMOS analog integrated circuits (ICs); Chaos; communication systems; noise generators; radio communication; signal generators;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2008.2003528

Filename

4631471