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- W2023590552 abstract "Mobile satellite communication systems at Ka/K band (30/20 GHz) are attractive because of their large bandwidth availability and potentiality to support smaller earth-stations and satellite antennas compared with L-band (1·6/1·5 GHz) systems. In this paper, multiple-symbol Viterbi decoding and dual-space equal-gain diversity reception for trellis-coded differential M-ary phase-shift-keying (DPSK) modulation are investigated as two mitigation techniques for severe channel impairments expected from a land mobile satellite communication channel at K band and, for comparison purposes, at L band. The multiple-symbol Viterbi decoder (MSVD) is a modified Viterbi decoder with inputs from multiple differential detectors. The channel is modelled as Rayleigh distributed multipath fading with a lognormally distributed line-of-sight (LOS) component due to shadowing. Four trellis-coded modulation (TCM) schemes are studied. The dependency of the system performance improvement on the decoder structure, the TCM scheme, and the system RF frequency band is presented." @default.
- W2023590552 created "2016-06-24" @default.
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- W2023590552 date "1995-05-01" @default.
- W2023590552 modified "2023-10-13" @default.
- W2023590552 title "Trellis-coded dpsk with multiple-symbol viterbi decoding over mobile satellite channel atK andL bands" @default.
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- W2023590552 doi "https://doi.org/10.1002/sat.4600130303" @default.
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