Author(s):
Maria Teresa Andrade 
; Artur Pimenta Alves
Date: 2000
Persistent ID: http://hdl.handle.net/10216/414
Origin: Repositório Aberto da Universidade do Porto
Document details
Experiments with dynamic multiplexing and UPC renegotiation for video over ATM
Description
In this paper we present an experimental approach for QoS-aware and bandwidth-efficiency transmission of multimedia sources over ATM networks. VBR video sources are statistically multiplexed at the application level and the UPC parameters of a single connection for the aggregate traffic are dynamically renegotiated with the network during the session lifetime. A statistical multiplexer computes the required bandwidth for the agreggate traffic and dynamiccally assigns bandwidth according to the performances requested and network resources availability. A dynamic UPC manager using feedback information sent by the network, may initiate a renegotiation of traffic parameters upon receiving a request from the statistical multiplexer. Performing the connection admission control procedures for the aggregate traffic, allows significant reductions in the value of the total peak rate when compared to the sum of peak rates of individual connections. It also reduces the burstiness of the flow submitted to the network, thus increasing the lifetime of each set of UPC parameters.
In this paper we present an experimental approach for QoS-aware and bandwidth-efficiency transmission of multimedia sources over ATM networks. VBR video sources are statistically multiplexed at the application level and the UPC parameters of a single connection for the aggregate traffic are dynamically renegotiated with the network during the session lifetime. A statistical multiplexer computes the required bandwidth for the agreggate traffic and dynamiccally assigns bandwidth according to the performances requested and network resources availability. A dynamic UPC manager using feedback information sent by the network, may initiate a renegotiation of traffic parameters upon receiving a request from the statistical multiplexer. Performing the connection admission control procedures for the aggregate traffic, allows significant reductions in the value of the total peak rate when compared to the sum of peak rates of individual connections. It also reduces the burstiness of the flow submitted to the network, thus increasing the lifetime of each set of UPC parameters.
Document Type
Conference Object
Language Portuguese
Language Portuguese
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