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With more than 16 billion videos streamed on YouTube during last May and recent estimates by Cisco that mobile video traffic will increase 25-fold between 2011 and 2016, there is a pressing need to adequately serve large numbers of simultaneous online video transmissions. Network providers need to be able to guarantee the strict Quality-of-Service (QoS) requirements of real-time variable bit rate...
Telemedicine traffic carries critical information with regard to a patients' condition; hence, it requires the highest transmission priority compared with all other types of traffic in the cellular network. The need for expedited errorless transmission of multimedia telemedicine traffic calls for a guaranteed bandwidth to telemedicine users. This condition, however, creates a tradeoff between the...
The burstiness of multimedia traffic and the long propagation delays in Geosynchronous (GEO) satellite systems call for an efficient Medium Access Control (MAC) protocol and an equally efficient Call Admission Control (CAC) scheme, in order to provide acceptable Quality of Service (QoS) to multimedia users. This paper proposes a fair and dynamic CAC and MAC framework, named Fair Predictive Resource...
We have recently introduced in the literature MI-MAC (Multimedia Integration Multiple Access Control), a new access control protocol for next generation wireless cellular networks which showed superior performance in comparison to other (TDMA and WCDMA-based) protocols when integrating various types of multimedia traffic. In this work, which to the best of our knowledge is one of the first in the...
The constant development of new multimedia applications which are ldquogreedyrdquo in terms of bandwidth and quality of service requirements calls for new approaches to the traffic policing problem. In recent work we have modeled the behavior of multiplexed H.263 videoconference traces. Our results lead us to introduce, in this work, a new video traffic model for single H.263 videoconference sources...
User mobility, combined with the rapidly growing number of multimedia applications, form a challenging and yet unresolved problem for the development of call admission control schemes over next generation wireless cellular networks. In recent work we have modeled the behavior of H.264 video traces with the use of a discrete autoregressive (DAR(1)) model. Based on this model, we propose in this work...
In this work, we first introduce a new traffic model for medium quality MPEG-4 videoconference traffic and then proceed to use it in the implementation of a new call admission control scheme. Our scheme makes decisions on the acceptance/rejection of a new video call not only based on the predicted capacity that users will consume, but also on the possible revenue gained for the provider when degrading...
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