We study the Stochastic Traffic Engineering (STE) problem arising from the support of QoS-demanding live (e.g., real time) audio/video applications over unreliable IP-over-wireless access pipes. First, we recast the problem to be tackled in the form of a suitable nonlinear stochastic optimization problem, and then we develop a goodput analysis for the resulting IP-over-wireless pipe that points out the relative effects of fading-induced errors and congestion-induced packet's losses. Second, we present an optimal resource-management policy that allows a joint scheduling of playin, transmit and playout rates. Salient features of the developed joint scheduling policy are that: i) it is self-adaptive; and, ii) it is able to implement reliable Constant Bit Rate (CBR) connections on the top of unreliable energy-limited wireless pipes. © 2011 IFIP International Federation for Information Processing.
Stochastic traffic engineering for live audio/video delivering over energy-limited wireless access networks / Nicola, Cordeschi; Tatiana, Patriarca; Baccarelli, Enzo. - 6640 LNCS:PART 1(2011), pp. 186-197. ((Intervento presentato al convegno 10th International IFIP TC 6 Networking Conference, NETWORKING 2011 tenutosi a Valencia nel 9 May 2011 through 13 May 2011. - LECTURE NOTES IN COMPUTER SCIENCE. [10.1007/978-3-642-20757-0_15].
Stochastic traffic engineering for live audio/video delivering over energy-limited wireless access networks
BACCARELLI, Enzo
2011
Abstract
We study the Stochastic Traffic Engineering (STE) problem arising from the support of QoS-demanding live (e.g., real time) audio/video applications over unreliable IP-over-wireless access pipes. First, we recast the problem to be tackled in the form of a suitable nonlinear stochastic optimization problem, and then we develop a goodput analysis for the resulting IP-over-wireless pipe that points out the relative effects of fading-induced errors and congestion-induced packet's losses. Second, we present an optimal resource-management policy that allows a joint scheduling of playin, transmit and playout rates. Salient features of the developed joint scheduling policy are that: i) it is self-adaptive; and, ii) it is able to implement reliable Constant Bit Rate (CBR) connections on the top of unreliable energy-limited wireless pipes. © 2011 IFIP International Federation for Information Processing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
