Signature-interleaved DS CDMA: controlling odd correlation peaks

Conference: PIMRC 2005 - 16th Annual IEEE International Symposium on Personal Indoor and Mobile Radio Communications
09/11/2005 - 09/14/2005 at Berlin, Germany

Proceedings: PIMRC 2005

Pages: 4Language: englishTyp: PDF

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Dudkov, Alexey; Ipatov, Valery P. (Turku Centre for Computer Science (TUCS) and University of Turku, Department of Information Technology, 20520 Turku, Finland)

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.