A new queue discipline for various delay and jitter requirements in real-time packet-switched networks

2002 ◽  
Author(s):  
Minseok Song ◽  
Naehyuck Chang ◽  
Heonshik Shin
Keyword(s):  
Real Time ◽  
Switched Networks ◽  
Queue Discipline

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.

Offline real-time channel establishment in packet-switched networks

1998 ◽  
Vol 21 (6) ◽  
pp. 507-515
Author(s):  
Stephen L. Hary ◽  
Shobana Balakrishnan ◽  
Füsun Özgüner
Keyword(s):  
Real Time ◽  
Switched Networks

scholarly journals Real-time queues in heavy traffic with earliest-deadline-first queue discipline

2001 ◽  
Vol 11 (2) ◽  
pp. 332-378 ◽  
Author(s):  
Bogdan Doytchinov ◽  
John Lehoczky ◽  
Steven Shreve
Keyword(s):  
Real Time ◽  
Heavy Traffic ◽  
Earliest Deadline First ◽  
Queue Discipline ◽  
Time Queues ◽  
Earliest Deadline
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