A burst traffic control strategy for ATM networks

Abstract

This paper proposes a burst traffic control strategy based on "virtual cell loss probability", which is newly defined as a method of evaluating service quality in Asynchronous Transfer Mode ( ATM ) networks. The virtual cell loss probability for each traffic source is obtained from only average and maximum bandwidths. It has robustness to withstand changes in burst duration parameters that seriously affect quality estimations by conventional methods. As a simple resource allocation control, based on this concept, a "virtual bandwidth" method, combined with a "virtual link capacity" scheme, is proposed. The proposed method guarantees service qualities for individual calls even in heterogeneous traffic environments. This control strategy is well suited for ATM networks, providing high bandwidth efficiency and also ensuring the required service quality in a simple manner.

Implementing Statistical Multiplexing in DVB-H

“…Video traffic models are used for modeling multiplexing processes and producing synthetic traffics for research simulations. Many other research efforts have modeled the performance of StatMux that is required for resource management and controlling the QoS in some application [13][14][15][16][17][18][19][20][21][22][23][24][25][26]. Moreover, a number of researchers have tried to improve the performance of StatMux by different means such as traffic smoothing, synchronization and scheduling [27][28][29][30][31][32][33].…”

“…In general if a bursty traffic X = {x(n)} is offered to a server with the buffer size of B and channel capacity of C, then the buffer will overflow after loading a number of p data packet to the buffer if [x(1) [42]. Therefore, if the user demands a loss probability less than ε then the channel capacity and the buffer size should be such that (14) A study of real video traffics shows that the ideal bursts have a PDF very close to a Gaussian while the PDF of video frames is more complex. To simplify the modeling task, the ideal burst is chosen as a packet data instead of video frames for modeling.…”

<title>ATM-based SMDS switch architecture and performance</title>

“…The target error rate is one cell in l0 lost. Simulations were used to dimension the switch buffer size to give equal or better cell loss rate [81 [12] [131 The two classes of cell loss allow the separation of service into two different levels of service quality.…”

Study of traffic control and congestion control in broadband ISDN

“…Then the network may selectively discard cells of lower priority flows while maintaining network performance objectives on both flows. One reference [5] proposes two quality classes based on the virtual cell loss probability, deterministic class (CLP=0) and statistical class (CLP=1).…”