Statistical performance of correlation-matching based channel estimators for aperiodic time hopping UWB systems

Author

Tang, Jin ; Xu, Zhengyuan

Author_Institution

Dept. of Electr. Eng., California Univ., Riverside, CA, USA

Volume

1

fYear

2004

fDate

29 Nov.-3 Dec. 2004

Firstpage

71

Abstract

In a time hopping ultra-wideband (UWB) impulse radio system, each user is assigned a unique time-hopping sequence. If aperiodic codes are used for time-hopping sequences, some benefits, such as smoothed spectrum and better performance, can be achieved. Recently, a correlation matching method has been proposed to estimate channels in aperiodic time-hopping systems. Performance of corresponding multiuser and single user channel estimators is studied in This work. Closed-form analytical results are provided and verified by computer simulation.

Keywords

binary sequences; channel coding; channel estimation; correlation methods; digital radio; statistical analysis; ultra wideband communication; UWB systems; aperiodic codes; aperiodic time hopping; channel estimators; correlation matching; smoothed spectrum; statistical performance; time-hopping sequence; ultra-wideband impulse radio; Amplitude modulation; Computer simulation; Fading; Maximum likelihood estimation; Pulse modulation; Signal resolution; Spread spectrum communication; Ultra wideband technology; Wireless communication; Yield estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE

Print_ISBN

0-7803-8794-5

Type

conf

DOI

10.1109/GLOCOM.2004.1377915

Filename

1377915