Mario Poggioni

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—Terrestrial or Handheld Digital Video Broadcasting (DVB-T/H) and Terrestrial Digital Multimedia Broadcasting (T-DMB) are two popular broadcasting standards that enable digital television transmissions to handheld receivers. This paper presents a comprehensive performance comparison between the physical layers of DVB-T/H and T-DMB when employed for mobile(More)
—This paper deals with the analytical evaluation of the average delay, the packet-loss rate (PLR) and the throughput of a multiuser (MU) wireless system that capitalizes on a cross-layer design of adaptive modulation and coding (AMC) with automatic repeat request (ARQ). To this end, we propose a heuristic scheduling policy, which has the nice properties to(More)
—A multibeam satellite system can be modelled as a multiple-input multiple-output (MIMO) system with an inter-beam interference matrix that is derived from the positions of the users in the different beams. This way it is possible to apply precoding techniques, such as Tomlinson-Harashima precoding (THP), to mitigate the interference. This paper presents an(More)
—This paper analyzes the quality of service (QoS) of scheduling algorithms for heterogeneous users in multiuser (MU) wireless systems that take advantage from a cross-layer design with both adaptive modulation and coding (AMC) and automatic repeat request (ARQ). By developing a general theoretical framework based on a finite-state Markov chain, we(More)
—This paper develops a novel simulation model to characterize the bit error rate (BER) performance of coded orthogonal frequency-division modulation (OFDM) systems affected by Doppler spread. This simulation model, which acts directly in the frequency domain, greatly enhances the simulation efficiency, while maintaining a very good accuracy. By this model,(More)
—This paper proposes a novel simulation model to characterize the bit-error rate (BER) performance of coded orthogonal frequency-division multiplexing (OFDM) systems that are affected by the Doppler spread. The proposed equivalent frequency-domain OFDM model (EFDOM) avoids the exact generation of the time-varying channel by introducing several parameters(More)
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