New concatenated sequences for wireless indoor asynchronous DS-CDMA communications

Author

Cacopardi, Saverio ; Frescura, Fabrizio ; Gambi, Marco ; Reali, Crianluca

Author_Institution

Istituto di Elettronica, Perugia Univ., Italy

Volume

1

fYear

1996

fDate

23-27 Jun 1996

Firstpage

63

Abstract

The performance of an indoor asynchronous DS-CDMA system was investigated. The analysis focuses on spreading sequences. In particular, we compare some known sequences, characterised by particular correlation properties, with other sequences constructed by using a concatenation technique. The concatenation effect is to make the statistics of the values of the even and the odd correlation functions similar and converging towards low values, thus keeping low the multi-user interference and obtaining good BER performance

Keywords

binary sequences; code division multiple access; coding errors; concatenated codes; correlation methods; error statistics; indoor radio; land mobile radio; multipath channels; pseudonoise codes; radiofrequency interference; spread spectrum communication; BER performance; channel model; concatenated sequences; concatenation effect; concatenation technique; convergence; correlation properties; even correlation functions; multipath channel; multiuser interference; odd correlation functions; radiowave propagation; spreading sequences; statistics; system performance; wireless indoor asynchronous DS-CDMA communications; Bandwidth; Base stations; Concatenated codes; Indoor radio communication; Multiaccess communication; Quadrature phase shift keying; Receivers; Statistics; System performance; Utility programs;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on

Conference_Location

Dallas, TX

Print_ISBN

0-7803-3250-4

Type

conf

DOI

10.1109/ICC.1996.540246

Filename

540246