In this paper, an analytical framework aiming at evaluating the performance, in terms of both buffer occupation and packet delay, for an ARQ-SR protocol application in wireless communications has been proposed. The present analysis involves a general communication channel model including both shadowing and fading effects. In particular, following a hierarchical approach, it has been modeled as a time discrete nested Markov chain. Moreover the traffic source model has been assumed as Markovian. The accurateness of the proposed solution has been validated by means of numerical simulation under several practical scenarios, as far as the physical channel and the traffic model are concerned. In particular, three different traffic models have been taken into account, always highlighting a remarkable accordance between the analytical predictions and numerical results.
Performance analysis of a ARQ-SR protocol over a wireless packet network channel / Chiti, Francesco; Fantacci, Romano; Marchiani, Riccardo. - ELETTRONICO. - 11:(2006), pp. 5117-5122. (Intervento presentato al convegno 2006 IEEE International Conference on Communications, ICC 2006 tenutosi a Istanbul, tur nel 2006) [10.1109/ICC.2006.255478].
Performance analysis of a ARQ-SR protocol over a wireless packet network channel
CHITI, FRANCESCO;FANTACCI, ROMANO;
2006
Abstract
In this paper, an analytical framework aiming at evaluating the performance, in terms of both buffer occupation and packet delay, for an ARQ-SR protocol application in wireless communications has been proposed. The present analysis involves a general communication channel model including both shadowing and fading effects. In particular, following a hierarchical approach, it has been modeled as a time discrete nested Markov chain. Moreover the traffic source model has been assumed as Markovian. The accurateness of the proposed solution has been validated by means of numerical simulation under several practical scenarios, as far as the physical channel and the traffic model are concerned. In particular, three different traffic models have been taken into account, always highlighting a remarkable accordance between the analytical predictions and numerical results.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.