Nipun Agarwal and Sang Son. Synchronization of distributed multimedia data in an application-specific manner. 2nd ACM International Conference on Multimedia, San Francisco, USA, pages 141--148, 10 1994.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....the server, which uses these messages to estimated the temporal state of the individual streams. Since clocks are not assumed to be synchronized, the quality of these estimations depends on the jitter of feed back messages, which is assumed to be bounded. A similar approach has been described in [1], which requires no bounded jitter but estimates the difference between clocks by means of probe messages. Both the Flow Synchronization Protocol [4] and the Lancaster Orchestration Service [3] assume synchronized clocks and support configurations with distributed sinks and sources. However, ....

Nipun Agarwal and Sang Son. Synchronization of distributed multimedia data in an application-specific manner. 2nd ACM International Conference on Multimedia, San Francisco, USA, pages 141--148, 10 1994.

....to estimated the temporal state of the individual streams. Since clocks are not assumed to be synchronized, the quality of these estimations depends on the jitter of feed back messages, which is assumed to be bound. A similar approach has been described 3 BASIC ASSUMPTIONS AND CONCEPTS 4 in [AgSo94], which requires no bounded jitter but estimates the difference between clocks by means of probe messages. Both the Flow Synchronization Protocol [EPD94] and the Lancaster Orchestration Service [CCGH92] assume synchronized clocks and support configurations with distributed sinks and sources. ....

Nipun Agarwal and Sang Son. Synchronization of Distributed Multimedia Data in an Application-Specific Manner. In 2nd International Conference on Multimedia, San Francisco, USA, pages 141--148, 10 1994.

....displayed media unit. Asynchrony can be discovered by the use of so called relative time stamps (RTS) Synchrony is restored by deleting or duplicating media units. Trigger packets are exchanged periodically so to calculate the relative time deviation between sender and receiver. Agarval et al. [Aga94] adopt the idea of Rangan and enhance the scheme by dropping the assumption of bounded jitter. Our synchronization scheme is inspired by the work of Santoso [San93] intrastream synchronization and the work of Ishibashi et al. Ish95] on intra stream synchronization and inter stream ....

N. Agarwal and S. Son. "Synchronization of Distributed Multimedia Data in an Application -specific Manner." In 2nd ACM International Conference on Multimedia,

....the performance of real time and significant amounts of non real time data in the same server. This needs a more integrated approach to the entire system design and adds somewhat to the complexity of achieving the performance goals. The synchronous playback of multiple streams is addressed by [1, 2] (as well as others) These methods provide comprehensive models for synchronization that involve both the client and the server. Our model provides the interface to synchronize many independent streams without adding complexity into the data itself. Variable speed playback mechanisms are ....

N. Agarwal and S. Son. Synchronization of Distributed Multimedia Data in an ApplicationSpecific Manner. In ACM Multimedia, pages 141--148, San Francisco, October 1994.

....of a global system time. Examples of the first class are the Flow Synchronization Protocol [3] the Orchestration Service [2] and the Adaptive Stream Synchronization Protocol [6] Representatives of the other class are protocols proposed by Venkat Rangan s research group [5] and Agarwal and Son [1]. The existence of synchronized clocks is a very realistic assumption for modern distributed systems. Various protocols for clock synchronization exist, which achieve clock accuracy in the lower millisecond range (e.g. 4] Having synchronized clocks available not only simplifies the stream ....

Nipun Agarwal and Sang Son. Synchronization of Distributed Multimedia Data in an Application-Specific Manner. In 2nd International Conference on Multimedia, San Francisco, USA, pages 141--148, 10 1994.

.... (Apple, 1991) or Tactus (Dannenberg et al. 1992) as well as various synchronization algorithms proposed in the literature (e.g. Ravindran and Bansal, 1993) K ppner et al. 1994) Shivakumar et al. 1995) Distributed approaches include algorithms proposed in (Ramanathan and Rangan, 1992) (Agarwal and Son, 1994), the Flow Synchronization Protocol (Escobar et al. 1994) the Lancaster Orchestration Service (Campell et al. 1992) as well as ASP. Both local as well as distributed approaches may be rigid or adaptive. For example, the Concord algorithm (Shivakumar et al. 1995) and the DMOS protocol (K ppner ....

....overhead for collecting state information and propagating control messages. Distributed adaptive approaches may be based on local time or global time, where the latter is achieved by clock synchronization. No global time is required for the algorithms proposed in (Ramanathan and Rangan, 1992) and (Agarwal and Son, 1994). Stored data streams are transferred from a centralized server to distributed sinks. The sinks are required to periodically send feedback messages to the server, which uses these messages to estimate the temporal state of the individual streams. In (Ramanathan and Rangan, 1992) the accuracy of ....

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Agarwal, N. and Son, S. (1994). Synchronization of distributed multimedia data in an application -specific manner. 2nd ACM International Conference on Multimedia, San Francisco, USA, pages 141--148.

....the server, which uses these messages to estimated the temporal state of the individual streams. Since clocks are not assumed to be synchronized, the quality of these estimations depends on the jitter of feed back messages, which is assumed to be bounded. A similar approach has been described in [1], which requires no bounded jitter but estimates the difference between clocks by means of probe messages. Both the Flow Synchronization Protocol [4] and the Lancaster Orchestration Service [3] assume synchronized clocks and support configurations with distributed sinks and sources. However, ....

N. Agarwal and S. Son. Synchronization of Distributed Multimedia Data in an Application-Specific Manner. Proc. ACM Multimedia `94, pp. 141--148, 10 1994.

....temporal relation. If the streams have the same source, establishing the temporal relation between them is easier, as they have the same clock. If the streams have different sources, then either a clock synchronization mechanism [9, 16] or a mechanism that emulates a global clock is required [17, 18, 22]. In order to guarantee high quality multimedia presentations, real time support from the network and operating system is important [7, 10] In our work we concentrate on synchronization algorithms that consider best effort environments, for two reasons: first, algorithms designed for non ....

....larger than = Gamma 80 ms. Also, as Manohar showed in [12] the variability normally present on the master stream may be increased if the master stream initiates the interstream synchronization. The problem of n streams synchronization having the same source, has been previously addressed in [3, 4, 8, 17, 22]. Solutions either perform intrastream synchronization and only check the interstream synchronization at certain points, 3, 8] or keep pairs of master and slave streams synchronized [4] The case when the n streams have different sources, has been addressed in [17, 22] Rangan [17] introduces ....

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N. Agarwal and S.H. Son, "Synchronization of Distributed Multimedia Data in an Application-Specific Manner", Proc. ACM Multimedia '94, San Francisco, California, pp. 141-148, October 1994.

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N. Agarwal and S. Son. Synchronization of Distributed Multimedia Data in an ApplicationSpecific Manner. In ACM Multimedia, pages 141--148, San Francisco, October 1994.

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