Iterative blind synchronization of multiuser ultra-wideband signals

Author

Ekrem, Ersen ; Koca, Mutlu ; Delic, Hakan

Author_Institution

Dept. of Electr. & Electron. Eng., Bogazici Univ., Istanbul

Volume

2

fYear

2008

fDate

10-12 Sept. 2008

Firstpage

45

Lastpage

48

Abstract

We propose a blind iterative synchronizer for chip-interleaving (CI), time-hopping (TH) ultra-wideband (UWB) signals subject to intersymbol and multiple access interferences. The synchronizer is a soft-input soft-output (SISO) device which makes it compatible with iterative equalization techniques. We embed it into an iterative equalizer for which a new channel decoder is designed that can work with probabilities of possible time-delays instead of hard estimates. The performance of the proposed receiver is illustrated via simulations.

Keywords

blind equalisers; channel coding; delays; intersymbol interference; iterative methods; multiuser channels; synchronisation; ultra wideband communication; UWB signal; channel decoder; chip-interleaving; intersymbol interferences; iterative blind synchronization; iterative equalization techniques; multiple access interference; multiuser ultra-wideband signal; soft-input soft-output device; time-delay; time-hopping; Delay effects; Delay estimation; Equalizers; Intersymbol interference; Iterative decoding; Laboratories; Multiple access interference; Silicon carbide; Ultra wideband technology; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband, 2008. ICUWB 2008. IEEE International Conference on

Conference_Location

Hannover

Print_ISBN

978-1-4244-2216-6

Electronic_ISBN

978-1-4244-1827-5

Type

conf

DOI

10.1109/ICUWB.2008.4653348

Filename

4653348