Signature-interleaved DS CDMA: controlling odd correlation peaks

Author

Dudkov, Alexey ; Ipatov, Valery P.

Author_Institution

Dept. of Inf. Technol., Turku Univ.

Volume

4

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

2527

Abstract

Users´ asynchronism and multipath propagation are among the most problematic issues in designing direct sequence code division multiple access (DS CDMA) systems. In this paper a system employing interleaved multiple signatures per user to mitigate the damaging effects of these factors is described and studied. It is demonstrated that interleaving along with an appropriate selection of users´ signature multitudes drastically lowers the level of data-modulation-related peaks of multiple access interference

Keywords

code division multiple access; correlation theory; modulation; multipath channels; radiofrequency interference; radiowave propagation; spread spectrum communication; DS-CDMA system; data-modulation-related peaks; direct sequence code division multiple access; interleaved multiple signature; multipath propagation; multiple access interference; odd correlation control; user asynchronism; Algorithm design and analysis; Code division multiplexing; Control systems; Direct-sequence code-division multiple access; Interleaved codes; Multiaccess communication; Multiple access interference; Quality of service; Signal design; Signal processing; DS CDMA; interleaving; multipath; multiple access interference; signature;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651899

Filename

1651899