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Multiuser detectors with decision feedback for asynchronous spread-spectrum multiple access in multipath fading channels

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2 Author(s)
B. C. Skelton ; Dept. of Electr. & Electron. Eng., Canterbury Univ., Christchurch, New Zealand ; D. P. Taylor

This paper extends earlier work of the authors to the multipath fading channel. For a normalized Doppler spread of fDT=0.005 we show that a reduced state sequence estimation reduced-complexity receiver with Ks=2 users per state and a processing gain of N s=127 performs only 0.5 dB worse than the single-user receiver for a bit-error rate of 10-4

Published in:

IEEE Transactions on Communications  (Volume:49 ,  Issue: 4 )