Cutoff Rates of Multichannel MFSK and DPSK Signals in Mobile Satellite Communications

Differential Detection with Intersymbol Interference and Frequency Uncertainty

In this paper we study differential detection of binary differential phase shift keyed (DPSK) signals with several impairments typical in satellite communication systems. In pariicjlar; the bit error rate is determined for bit timing error and frequency offset error at the receiver. The effect of a hard-limiting, band-limited repeater is also considered. The differential detector performance is...

PSK and DPSK trellis codes for fast fading, shadowed mobile satellite communication channels

M-DPSK detection, channel estimation and power control in LEO satellite communications

AbsrrucfDifferential detection of phase-shift keying signals entails the ability to establish a stable phase reference based on previous symhol(s). In low bit-rate communications strongly affected by Doppler effect, like those making use of non-geostationary satellites, significant carrier phase drifts may occur within the symbol interval; thus, large irreducible error floors result if the Dopp...

Convolutionally Interleaved PSK and DPSK Trellis Codes for Shadowed, Fast Fading Mobile Satellite Communication Channels

Using a model from the literature, the performance of convolutionally interleaved phase shift keying (PSK) and differential phase shift keying (DPSK) trellis codes for digital speech transmission over a shadowed mobile satellite communication channels is determined via digital computer simulation. First the characteristics of fading channels are examined and analyzed in terms of the probability...

An MGF-derivative based unified analysis of incoherent diversity reception of M-ary orthogonal signals over fading channels

Exact error probability expressions for noncoherent M-ary frequency-shift-keying (MFSK) systems that employ postdetection equal-gain diversity over Rayleigh, Rician and Nakagami-m channels are derived using a Laplace derivative formula. Both independent and generically correlated fading cases are considered. For independent fading, closed-form solutions are also derived for both Nakagami-q fadi...