Fractionally spaced decision feedback joint detection for multitone CDMA systems

Author

Vandendorpe, L. ; Van de Wiel, O.

Author_Institution

UCL Commun. & Remote Sensing Lab., Louvain-la-Neuve, Belgium

Volume

3

fYear

1996

fDate

22-25 Sep 1996

Firstpage

1361

Abstract

In the present paper we consider a fractionally spaced decision feedback joint detector for multitone CDMA systems. We first derive the structure of the receiver for an MMSE criterion. Then we evaluate the BER achieved by this detector for BPSK modulation in steady-state conditions. We consider an asynchronous scenario where the signal of each user propagates over a two-path channel. The resistance of the detector against timing errors is studied and the resistance against a near-far scenario is also demonstrated

Keywords

code division multiple access; decision feedback equalisers; error statistics; interference suppression; multipath channels; phase shift keying; pseudonoise codes; signal detection; spread spectrum communication; synchronisation; BER; BPSK modulation; MMSE criterion; asynchronous two-path channel; fractionally spaced decision feedback joint detector; multitone CDMA systems; receiver; steady-state conditions; timing errors; Bandwidth; Binary phase shift keying; Bit error rate; Detectors; Feedback; Matched filters; Multiaccess communication; OFDM modulation; Proposals; Steady-state;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on

Conference_Location

Mainz

Print_ISBN

0-7803-3567-8

Type

conf

DOI

10.1109/ISSSTA.1996.563616

Filename

563616