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Ziviani, A., J. F. de Rezende, O. C. M. B. Duarte, and S. Fdida: 2001, `Evaluating Voice Trac in a Di erentiated Services Environment'. In: Proc. of 17th International Teletrac Congress - ITC17. Salvador, Brazil.

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Improving Feedback Merging for Source-Adaptive.. - Gonçalves, ..   Self-citation (De rezende Duarte)   (Correct)

....feedback merging, performance, multicast 1. Introduction The need for meeting the Quality of Service (QoS) requirements of multimedia applications is steadily increasing. As a consequence, new approaches, such as adaptive applications [9] QoS routing [20, 12, 5, 4] and Di erentiated Services [3, 17, 22] are currently being developed. This work was sponsored by CAPES COFECUB, FUJB, CRNS, and CNPq. y Contact author. Mailing Address: LIP6. c 2003 Kluwer Academic Publishers. Printed in the Netherlands. 2 Paulo Andr e da S. Gon calves et al. In the case of adaptive applications, di erent ....

Ziviani, A., J. F. de Rezende, O. C. M. B. Duarte, and S. Fdida: 2001, `Evaluating Voice Trac in a Di erentiated Services Environment'. In: Proc. of 17th International Teletrac Congress - ITC17. Salvador, Brazil.


Evaluating the Expedited Forwarding of Voice Traffic in a.. - Ziviani (2002)   Self-citation (Ziviani)   (Correct)

....[26] In [36] we evaluate the performance of voice sources when handled by the EF PHB, without taking into account the e ects of trac shaping and considering xed size voice packets. The performance of voice ows transmitted through a DS domain implementing both EF and AF PHBs is analyzed in [37]. The e ects of di erent scheduling schemes and of di erent packet sizes on voice delay are studied in [38] Although the results obtained focus on delay, additional delays introduced by a possible shaping of the incoming voice trac are not considered. This paper aims at evaluating the delay and ....

Ziviani A, Rezende JF, Duarte OCMB, Fdida S. Evaluating voice trac in a di erentiated services environment. In Proceedings of the 17th International Teletrac Congress (ITC17), Dec. 2001.


Optimal Feedback for Quality Source-Adaptive.. - Gonçalves, ..   Self-citation (De rezende Duarte)   (Correct)

....receivers leads to near optimal feedback. 1 Introduction The need for meeting the Quality of Service (QoS) requirements of the multimedia applications is steadily increasing. As a consequence, new approaches such as adaptive applications [1] QoS routing [2] 3] and Di erentiated Services [4] [5] are currently being developed. In the case of adaptive applications, di erent schemes are emerging to improve quality and fairness of multi layered video applications [6] 7] 8] 9] 10] 11] 12] 13] 14] In the context of unicast, as an example, Rejaie et al. 8] 9] propose an ....

....capable of merging feedback packets. The merging time window and the feedback sending interval were set to 500 ms. Background trac is generated on the transit domain throughout all simulation time. For each sending round, processing delay at receivers was uniformly chosen at random on the interval [0, 5] ms. Merging time window variation in each merging procedure was randomly chosen uniformly on the interval [0, 5] ms. The start time of each receiver was randomly chosen uniformly on the interval [0, 1] s. Each simulation was run for 315 seconds. All simulation results have a con dence interval ....

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A. Ziviani, J. F. de Rezende, O. C. M. B. Duarte, and S. Fdida, \Evaluating voice trac in a di erentiated services environment," in Proceedings of the 17th International Teletrac Congress - ITC17, (Salvador, Brazil), Dec. 2001.


Improving the Delivery Quality of MPEG Video.. - Ziviani, de.. (2002)   Self-citation (Ziviani De rezende Duarte Fdida)   (Correct)

.... Behavior (PHB) The PHB is selected by a mapping between a codepoint that identi es the aggregation and the expected behavior [13] Two PHBs are in discussion in the DS research community: the Expedited Forwarding (EF) PHB [14, 15] and the Assured Forwarding (AF) PHB [16] Although recent papers [17, 18, 19, 20] analyze distinct aspects of di erentiated services, the transmission of video trac over a DS enabled network remains not well explored. This is true specially for the transmission of video streams based on MPEG encoding, which has been pointed out as a standard for future networked interactive ....

A. Ziviani, J. F. de Rezende, O. C. M. B. Duarte, and S. Fdida, \Evaluating voice trac in a di erentiated services environment", in Proceedings of the 17th International Teletrac Congress (ITC17), Dec. 2001.

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