Implications of traffic characteristics on quality of service in broadband multi service networks

In this chapter, the authors discuss the motivation, challenges, and solutions for network and Internet quality of service management. While network and Internet service providers traditionally ensured sufficient quality by simply overprovisioning their internal infrastructure, more economic solutions are required to adapt the network infrastructures and their backbones to current and upcoming traffic characteristics and quality requirements with sustained success. The chapter outlines real-world scenarios to analyze both the requirements and the related research challenges, discusses the limitations of existing solutions, and goes into the details of practitioners’ current best practices, promising research results, and the upcoming paradigm of service level management aware network connections. Special emphasis is put on the presentation of the various facets of the quality assurance problem and of the alternative solutions elaborated with respect to the technical heterogeneity, restrictive information sharing policies, and legal obligations encountered in international service provider cooperation.

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Adaptive Routing Quality of Service Algorithms for Internet's Irregular Traffic

Encyclopedia of Internet Technologies and Applications ◽

10.4018/978-1-59140-993-9.ch002 ◽

2008 ◽

pp. 7-15

Author(s):

Abdelhamid Mellouk

Keyword(s):

Quality Of Service ◽

Multimedia Data ◽

The Internet ◽

Video Conference ◽

Data Traffic ◽

Service Networks ◽

High Quality ◽

Continuous Growth ◽

The World

Networks, such as the Internet, have become the most important communication infrastructure of today’s society. It enables the worldwide users (individual, group, and organizational) to access and exchange remote information scattered over the world. Currently, due to the growing needs in telecommunications (Void, video-conference, Void, etc.) and the diversity of transported flows, the Internet network does not meet the requirements of the future integrated-service networks that carry multimedia data traffic with a high quality of service (QoS). The main drivers of this evolution are the continuous growth of the bandwidth requests, the promise of cost improvements, and finally the possibility of increasing profits by offering new services.

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Quality of Service Issues Associated with Internet Protocols

Encyclopedia of Multimedia Technology and Networking ◽

10.4018/978-1-59140-561-0.ch123 ◽

2011 ◽

pp. 869-874

Author(s):

Jairo A. Gutiérrez ◽

Wayne Ting

Keyword(s):

Quality Of Service ◽

Packet Scheduling ◽

Internet Protocols ◽

Packet Filtering ◽

Control Packet ◽

Traffic Characteristics ◽

Qos Guarantees ◽

Wide Range ◽

Application Requirements

The objective of enabling the development of higher-level multimedia services with guaranteed quality of service (QoS) on networks has prompted developments that attempt to accommodate these new application requirements. Several architectures have been proposed, and a common basic functionality is emerging. Any new architecture that intends to satisfy the ever-growing need for bandwidth in the Internet while providing support for QoS guarantees needs to concern itself with the following aspects (Zhang, Deering, Estrin, Shenker, Zappala, 1993; Biswas, Lazar, Huard, Lim, Mahjoub, Pau, Suzuki, Torstensson, Wang and Weinstein, 1998): • Flow management: identifying the traffic characteristics of a flow so that the network can specify the QoS to be delivered to that flow • Compatibility with a wide range of routing protocols (Callon, Doolan, Feldman, Fredette, Swallow, Viswanathan, 1997) • Resource reservation • Admission control • Packet scheduling: including packet filtering and classification.

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