Optimization of the ambiguity function of binary sequences and their mismatched filters for use in CTDMA systems

Author

Schotten, Hans Dieter ; Ruprecht, Jürg

Author_Institution

Inst. fur Elektrische Nachrichtentech., Tech. Hochschule Aachen, Germany

fYear

1995

fDate

17-22 Sep 1995

Firstpage

89

Abstract

For the application in a cellular common-code spread-spectrum multiple access system, referred to as code time division multiple access (CTDMA), the ambiguity function of the binary spreading sequence and its mismatched despreading filter is optimized. In cellular CTDMA systems, the user signals are first separated by a symbol-level TDMA scheme and then spread in a DS-CDMA fashion by a common (cell-specific) binary spreading sequence

Keywords

binary sequences; cellular radio; code division multiple access; filtering theory; pseudonoise codes; spread spectrum communication; time division multiple access; DS-CDMA; ambiguity function; binary spreading sequence; cell specific spreading sequence; cellular CTDMA systems; cellular common-code spread-spectrum multiple access; code time division multiple access; mismatched despreading filter; symbol-level TDMA scheme; Binary sequences; Degradation; Design optimization; Doppler shift; Filters; Mobile communication; Multiaccess communication; Pareto optimization; Research and development; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on

Conference_Location

Whistler, BC

Print_ISBN

0-7803-2453-6

Type

conf

DOI

10.1109/ISIT.1995.531293

Filename

531293