Title :
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
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;
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.1996.563616
