Title :
A class of bandlimited complex spreading sequences with analytic properties
Author :
Lötter, Michiel P. ; Linde, Louis P.
Author_Institution :
Alcatel Altech Telecom, Boksburg, South Africa
Abstract :
This paper describes the construction and correlation properties of a new class of analytic, bandlimited complex (ABC) spreading sequences. The sequences are loosely based on the well known Frank-Zadoff-Chu (FZC) sequences and are constructed by placing some constraints on the phases of the FZC sequences. The new class of spreading sequences are shown to have analytical properties, while retaining reasonable correlation properties. In particular, the analytic properties of the sequences facilitate the use of spreading sequences with double the length in CDMA systems. Furthermore, the sequences have a constant signal envelope making them ideal for applications were a peak-to-mean signal power ratio of one is desirable
Keywords :
binary sequences; code division multiple access; correlation methods; pseudonoise codes; spread spectrum communication; ABC spreading sequences; DS-CDMA systems; FZC sequences; Frank-Zadoff-Chu sequences; analytical properties; bandlimited complex spreading sequences; constant signal envelope; correlation properties; direct sequence spread spectrum system; peak-to-mean signal power ratio; phase constraints; Africa; Autocorrelation; Bandwidth; Bit error rate; Filters; Frequency; Gold; Interference; Multiaccess communication; Telecommunications;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Conference_Location :
Mainz
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563208
