Title :
A tone-aided dual vestigial sideband system for digital communications on fading channels
Author :
Hladik, Stephen M. ; Saulnier, Gary J. ; Rafferty, William
Author_Institution :
Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
A spectrally efficient tone-aided dual vestigial sideband (TA/DVSB) system for digital data communications on fading channels is presented and described analytically. This PSK (phase-shift-keying) system incorporates a feed-forward, tone-aided demodulation technique to compensate for Doppler frequency shift and channel- induced, multipath fading. In contrast to other tone-in-band-type systems, receiver synchronization is derived from the complete data VSBs. Simulation results for the Rician fading channel are presented. These results demonstrate the receiver´s ability to mitigate performance degradation due to fading and to obtain proper data carrier synchronization, suggesting that the proposed TA/DVSB system has promise for this application. Simulated BER (bit-error rate) data indicate that the TA/DVSB system effectively alleviates the channel distortions of the land mobile satellite application
Keywords :
Doppler effect; demodulation; digital radio systems; fading; mobile radio systems; phase shift keying; synchronisation; BER data; Doppler frequency shift; PSK; Rician fading channel; bit-error rate; data VSB; data carrier synchronization; digital data communications; dual vestigial sideband system; feed-forward demodulation technique; land mobile satellite application; phase-shift-keying; radio systems; receiver synchronization; spectrally efficient tone-aided; Bit error rate; Data communication; Degradation; Demodulation; Fading; Feedforward systems; Frequency synchronization; Phase shift keying; Rician channels; Satellites;
Conference_Titel :
Military Communications Conference, 1989. MILCOM '89. Conference Record. Bridging the Gap. Interoperability, Survivability, Security., 1989 IEEE
Conference_Location :
Boston, MA
DOI :
10.1109/MILCOM.1989.104015