<i>Total Network Data System</i>: Theoretical and Engineering Foundations

Hayward, WG; Moreland, James Porter

doi:10.1002/j.1538-7305.1983.tb03537.x

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…This kind of unbalance is caused by customers. Similar unbalance has been seen in many papers [1,2,5,10], etc. It is very clear that one cannot count on it to improve the system performance.…”

Section: Simulationresultssupporting

confidence: 85%

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The Optimal Utilization of Multi-Service SCP

Tang

Simula

1997

Intelligent Networks and Intelligence in Networks

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This paper introduces one method for the optimal utilization of the SCP which offers several kinds of services at the same time. There are three issues related to this method, i.e. the simulation of the traffic for the services, the approximation of the service-related system capacities, and the adaptation for the environment which is constructed mainly by the traffic for the different services. The adaptation (called SOM-D) is the main part of this paper. It consists of using Self-Organizing Feature Map to encode the time-varying environment and using one adaptive gap decoder to get the optimal gap sequences. Simulation is made to test the method. The results show that the system performance can be significantly improved by this adaptive method.

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Section: Simulationresultssupporting

confidence: 85%

“…However, it is reasonable to believe [1,2,10], when the test is kept for days or even weeks or longer (T1), certain relations can be found. The relations may be approximations of certain statistical relations.…”

Section: Figurementioning

confidence: 99%

The Optimal Utilization of Multi-Service SCP

Tang

Simula

1997

Intelligent Networks and Intelligence in Networks

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“…Much literature exists on the theory of how humans initiate telephone calls, how long we talk, and so on. (References [8] and [9] present these theoretical foundations.) The POTS network is a connection-oriented network, where calls are assigned constant bandwidth.…”

Section: Paradigms Of Traffic Behaviormentioning

confidence: 99%

Local area network characteristics, with implications for broadband network congestion management

Fowler¹,

Leland²

1991

IEEE J. Select. Areas Commun.

251

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This paper examines the phenomenon of congestion in order to better understand the congestion management techniques that will be needed in high-speed, cell-based networks. The first step of this study is to use high time-resolution local area network (LAN) traffic data to explore the nature of LAN traffic variability. Then, we use the data for a trace-driven simulation of a connectionless service that provides LAN interconnection. The simulation allows us to characterize what congestion might look like in a high-speed, cell-based network. The most striking aspect of the LAN data is the extreme traffic variability on time scales ranging from milliseconds to months. Conventional traffic models do not capture this behavior, which has a profound impact on the nature of traffic congestion. When our realistic data is applied to simple models of LAN interconnection, we observe that: During congested periods, congestion persists and losses can be significant. Congestion losses cannot be avoided by modest increases in buffer capacity. The consequences of misengineering can be serious. Fortunately, most congested periods are preceded by signs of impending danger.

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“…Considering individual users accessing the system, poisson arrival and departure processes of both Group F and Group L are assumed in the scenario due to its user initiated nature [16]. Figure 3 shows a state-transitionrate diagram to denote the behaviour of an m-channel 2-HAP system.…”

Section: Analytical Modelmentioning

confidence: 99%

Exploiting platform diversity for GoS improvement for users with different High Altitude Platform availability

Liu

Grace

Mitchell

2009

IEEE Trans. Wireless Commun.

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This paper investigates the ways of improving the Grade-of-Service (GoS) in a coexistence scenario with different user types in a multiple High Altitude Platforms (HAPs) system with shared coverage area and radio spectrum. It is achieved through the exploitation of HAP diversity. An analytical model based on a two-dimensional state-transition-rate diagram is developed to describe system behaviour of a coexistence scenario containing two user groups, which have full and limited HAP availability. On the basis of the analytical model, a novel restriction mechanism is implemented in order to achieve a fair balance of GoS to the two user groups using connection admission control (CAC). The mechanism restricts access to the channel resource for users with full HAP choice in order to give more chance of access to users with a more limited HAP selection. Different types of restriction function are analysed and the paper shows that a Step Restriction function is the most suitable mechanism to provide a balanced low blocking probability performance to both user groups simultaneously. Furthermore, the mechanism can potentially provide a certain level of GoS guarantee for the users if adequate flexibility is available within the whole system.

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Total Network Data System: Theoretical and Engineering Foundations

Cited by 9 publications

References 10 publications

The Optimal Utilization of Multi-Service SCP

The Optimal Utilization of Multi-Service SCP

Local area network characteristics, with implications for broadband network congestion management

Exploiting platform diversity for GoS improvement for users with different High Altitude Platform availability

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