The performance behavior of L-diversity, slow FH/DPSK (frequency-hopping/differential-phase-shift-keying) data detectors in the presence of partial-band-noise jamming is presented. Two nonlinear combining schemes, namely, the predemodulation and postdemodulation soft-decision diversity combiners, are examined. The former is found to render a better cutoff rate performance. This diversity combiner is then further investigated under the constant data rate and constant symbol energy criteria. It is concluded that, for bit-error probability of 10-5, 3.2 and 12.2 dB are gained by using the rate one-half, constraint length seven (7, 1/2) convolutional code with the dual-diversity constant data rate option and the 16-diversity constant symbol energy option, respectively.
|Number of pages||5|
|State||Published - 1 Dec 1989|
|Event||IEEE Military Communications Conference - MILCOM '89. Part 1 - Boston, MA, USA|
Duration: 15 Oct 1989 → 18 Oct 1989
|Conference||IEEE Military Communications Conference - MILCOM '89. Part 1|
|City||Boston, MA, USA|
|Period||15/10/89 → 18/10/89|