Title :
Blind adaptive interference-reject linear detectors for CDMA receivers
Author :
De Gaudenzi, R. ; Giannetti, F. ; Luise, Marco
Author_Institution :
ESTEC, Eur. Space Agency, Noordwijk, Netherlands
Abstract :
We take into consideration a low-complexity blind adaptive interference-rejection detector (BAID) scheme that minimizes the detrimental effect of the multiple access interference (MAI) on the bit-error rate (BER) performance of the data demodulator for direct-sequence/spread-spectrum (DS/SS) signals in CDMA radio networks. Specifically, we describe a few modifications to the original algorithm that make it more suitable to a practical implementation with QPSK-modulated DS/SS signals and asynchronous multiplexing, and we evaluate the performance of such extended detector in the case of coherent signal detection
Keywords :
adaptive signal detection; coding errors; error statistics; interference suppression; multiplexing; pseudonoise codes; quadrature phase shift keying; radio networks; radio receivers; radiofrequency interference; spread spectrum communication; telecommunication channels; BER performance; CDMA radio networks; CDMA receivers; QPSK modulated DS-SS signals; algorithm; asynchronous multiplexing; bit error rate; blind adaptive interference rejection detector; coherent signal detection; data demodulator; direct sequence spread spectrum; linear detectors; multiple access interference; performance evaluation; AWGN; Additive white noise; Bit error rate; Demodulation; Detectors; Multiaccess communication; Multiple access interference; Multiuser detection; Rails; Timing;
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.1996.563506
