Title :
Soft decision direct-sequence DPSK receivers
Author :
Stüber, Gordon L.
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
8/1/1988 12:00:00 AM
Abstract :
Several soft-decision receiver structures are proposed for coded direct-sequence differential-phase-shift-keyed (DPSK) spread spectrum systems operating over pulse-jammed channels. The performance of the maximum-likelihood soft-decision receivers and a number of suboptimal soft decision receivers is considered. Soft-decision receivers require channel side information for satisfactory performance in the presence of pulse jamming. Two techniques are investigated for generating channel side information to mitigate the effects of pulse jamming
Keywords :
decoding; jamming; phase shift keying; radio receivers; spread spectrum communication; channel side information; differential-phase-shift-keyed; direct-sequence DPSK receivers; maximum likelihood receivers; pulse-jammed channels; soft-decision receiver; spread spectrum systems; suboptimal receivers; AWGN; Additive white noise; Detectors; Differential quadrature phase shift keying; Fading; Interference; Jamming; Modulation coding; Multipath channels; Spread spectrum communication;
Journal_Title :
Vehicular Technology, IEEE Transactions on
