On Pilot-Symbol-Assisted Carrier Synchronization for DVB-S2 Systems

Symbol Rate Estimation for DVB-S2 Broadcasting

Optimum and suboptimum frame synchronization for pilot-symbol-assisted modulation

Pilot symbol assisted modulation (PSAM) is a method to reduce the eeects of fading in mobile communications by periodically inserting known symbols in the data stream. The receiver uses these pilot symbols to derive its amplitude and phase reference. One aspect of this procedure which has not received much attention in the literature is the method used by the receiver to locate the pilot symbol...

Pilot-symbol Assisted Carrier Synchronization: Cramer-rao Bound and Synchronizer Performance

This contribution considers the joint estimation of the carrier phase and the frequency offset from a noisy linearly modulated burst signal containing random data symbols (DS) as well as known pilot symbols (PS). The corresponding Cramer-Rao lower bound (CRB) is derived. This bound indicates that it is potentially more accurate to estimate carrier phase and frequency from such a ‘hybrid’ burst ...

Pilot Symbol Assisted Coding

We propose a novel technique, hereby referred to as pilot symbol assisted coding (PSAC), where a predetermined fraction of binary pilot symbols is interspersed with the channel-coded bits at the channel coding stage, instead of multiplexing the pilots with the data symbols at the modulation stage, as in classic pilot symbol assisted modulation (PSAM). We subsequently demonstrate that the PSAC s...

About QoS in DVB-S2/RCS Systems

The standardization of a Return Channel via Satellite and the satellite community efforts in term of interoperability over the last few years stands for major milestones in the development of reliable, efficient and low cost satellite equipments. It leads to quite a positive outcome: geostationary satellite networks are expected to play a decisive role in bridging the existing digital divide th...