scholarly journals Modeling Quality of Service Techniques for Packet-Switched Networks

2018 ◽  
Author(s):  
Wlodek M. Zuberek ◽  
Dariusz Strzeciwilk
Keyword(s):  
Quality Of Service ◽  
Switched Networks

Quality-of-service differentiation and fairness in optical burst-switched networks

2002 ◽  
Author(s):  
Fabrice Poppe ◽  
Koenraad Laevens ◽  
Herman Michiel ◽  
Serge Molenaar
Keyword(s):  
Quality Of Service ◽  
Service Differentiation ◽  
Switched Networks ◽  
Optical Burst

Multilayered Quality of Service

2002 ◽  
pp. 106-122
Author(s):  
Luiz A. DaSilva
Keyword(s):  
Quality Of Service ◽  
Real Time ◽  
Packet Switching ◽  
High Efficiency ◽  
Heterogeneous Traffic ◽  
Statistical Multiplexing ◽  
Best Effort ◽  
Switched Networks ◽  
Treat All

Today’s networks support applications that deliver text, audio, images and video, often in real time and with a high degree of interactivity, using a common infrastructure. More often than not, traffic is carried over packet-switched networks that treat all data the same, under what is known as best-effort service. Packet switching can achieve very high efficiency through statistical multiplexing of data from numerous sources; however, due to the very nature of packet switching, one should expect fluctuations in throughput, delay, reliability, etc., for any given flow. The greater the statistical multiplexing capabilities, the greater the efficiency and also the greater the variability of achieved performance; in this sense, best-effort service provides maximum efficiency with highly unpredictable service quality. Clearly, not all traffic flows are created equal. Interactive web-based applications tend to be very sensitive to throughput, while real-time voice and video are sensitive to delay and jitter, and traditional data applications such as e-mail and file transfers are fairly insensitive to fluctuations in performance. The concept of quality of service (QoS) has evolved from the realization that in networks that carry heterogeneous traffic it makes sense to treat specific classes of traffic according to their specific needs.

Disruption in the ICT-Sector

2010 ◽  
pp. 182-200
Author(s):  
Justus Bross ◽  
Long Wang ◽  
Rehab AlNemr
Keyword(s):  
Quality Of Service ◽  
Telecommunications Industry ◽  
Telephone Network ◽  
Switched Networks ◽  
Disruptive Innovations ◽  
Research Findings ◽  
Ip Packet ◽  
Public Telephone

In this chapter, the authors discuss innovations associated with the transition from the circuit-switched public telephone network to IP packet-switched networks for the provision of voice services by focusing on research findings in the area of quality of service (QoS). To give a meaningful answer on how this transition affects the telecommunications industry, we elaborate on the frequently-cited concept of disruptive innovations, pioneered by Harvard Professor Clayton M. Christensen.

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