A survey of active transmission technique for improve quality of service in Multimedia Over IP

Ngatman, Mohd Farhan; Sharif, Johan Mohamad; Ngadi, Md. Asri

doi:10.1109/itsim.2008.4631994

Cited by 1 publication

(1 citation statement)

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“…The ReLate2 metric is defined by the product of the average data packet latency and the percent loss that the transport protocol provides + 1 (to account for 0% loss) which implies an order of magnitude increase for 9% loss. Based on previous research which evaluated percent data loss for multimedia applications (Bai, 2006(Bai, , 2007Ngatman, 2008), this adjustment is relevant for multimedia data such as the high-resolution 3-D health data in our SCAAL example. For example, if for a given protocol the average packet latency is 1,000 μs and the percent loss is 0 (i.e., no packets lost) then the ReLate2 value is 1,000.…”

Section: Composite Qos Metrics For Reliability and Timelinessmentioning

confidence: 99%

Timely Autonomic Adaptation of Publish/Subscribe Middleware in Dynamic Environments

Gokhālé

Schmidt

Hoffert

2011

International Journal of Adaptive, Resilient and Autonomic Systems

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Quality-of-service enabled publish/subscribe (pub/sub) middleware provides powerful support for scalable data dissemination. It is difficult to maintain key quality of service properties (such as reliability and latency) in dynamic environments for distributed real-time and embedded systems (such as disaster relief operations or power grids). Managing quality of service manually is often not feasible in dynamic environments due to slow response times, the complexity of managing multiple interrelated quality of service settings, and the scale of the systems being managed. For certain domains, distributed real-time and embedded systems must be able to reflect on the conditions of their environment and adapt accordingly in a bounded amount of time. This paper describes an architecture of quality of service-enabled middleware and corresponding algorithms to support specified quality of service in dynamic environments.

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Section: Composite Qos Metrics For Reliability and Timelinessmentioning

confidence: 99%