Carrier Pairing, a Technique for Increasing Interactive Satellite Systems Capacity. An Assessment of its Applicability to Different System Architectures

DOI: 10.1007/978-0-387-47524-0_40


The Carrier Pairing technique, i.e. the sharing of the same frequency band for both Forward Link and Reverse Link carriers
in a star or multi-star satellite network, is here discussed. In particular a possible mechanization and its performance in
a realistic reference scenario are discussed to understand the merits and limitations of that technique.

The analyses herein presented were carried out with regard to a reference scenario featuring a single Hub station per spot
transmitting a standard DVB-S2 carrier with Adaptive Coding and Modulation (ACM) to User Terminals, which in turn transmit
enhanced DVB-RCS signals (Turbo-Φ code, QPSK-16APSK ACM) to the Hub. Impairments caused by the non-linear satellite channel
on echo canceller performance have been taken into account, also attempting to mitigate them by means of pre-distortion techniques.

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