Advanced transmission techniques are investigated for satellite systems that communicate short data packets (a few tens or hundreds of bits). Systems of this kind are gaining interest due to the deployment of satellite and terrestrial Internet of Things (IoT) networks. The short nature of the packets makes classic design rules for forward error correction and modulation for broadband transmission largely suboptimal. Three main research areas were in the focus of the investigations, namely: (i) the design of near-optimal error correcting codes for short data packets on additive white Gaussian noise channels, (ii) the development of improved decoding algorithms for short packet transmission over fading channels, and (iii) the construction of efficient waveforms for short packets. The results achieved by the group show how large gains can be achieved with espect to standard designs. For example, the proposed techniques enable power efficiency gains of more than 2 dB over fading channels. The three activities address both theoretical and engineering aspects, and they provide guidelines for the design of satellite links for short packet transmission.     «

Advanced transmission techniques are investigated for satellite systems that communicate short data packets (a few tens or hundreds of bits). Systems of this kind are gaining interest due to the deployment of satellite and terrestrial Internet of Things (IoT) networks. The short nature of the packets makes classic design rules for forward error correction and modulation for broadband transmission largely suboptimal. Three main research areas were in the focus of the investigations, namely: (i) t...     »