QoS Provisioning Architecture for Next Generation Mobile Networks(Mobility Management)(<Special Section>Mobile Multimedia Communications)

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概要

• 論文の詳細を見る

• Service differentiation has been a subject of research for the past few years in the IETF; and in the current Internet, IP flows are mostly treated in a best-effort approach. However, for next generation networks it is expected that users would like to obtain service differentiation based on their preferences or profiles as well as the different types of multimedia they opt to receive or send. In addition, current Quality of Service (QoS) provisioning architectures have been designed mostly for the fixed networks without taking into consideration the wireless or radio links special requirements, such as low bandwidth availability, error prone communications, etc. In this paper we propose a QoS provisioning architecture for next generation networks that uses a hybrid approach to deal with both the wireless and wired (fixed) part of the network. For administering the scarce resource of the radio environment, we have developed a resource allocation algorithm based on micro-economic principles that uses associated piecewise linear utility functions which describe the benefit a user receives from the allocation of various amounts of resource. For the wired part of the network we have also developed a Core-Stateless Utility based Rate allocation Framework (SURF) for performing traffic policing where the flow's requirements are expressed using utility functions. The core routers maintain no per-flow state and implement a simple packet level admission control algorithm that is based on a threshold utility value that is computed dynamically. To tie in these two mechanisms, we developed a signaling mechanism that collect network statistics when a user starts a call and a QoS administrator entity (or Broker) perform the computations for allocating resources based on the information of available resources in the fixed and the wireless sections of the network. A comparison between the hybrid approach and the SURF approach to show the performance of the proposed architecture is presented later in the paper.

• 一般社団法人電子情報通信学会の論文
• 2004-05-01

著者

• Gonzalez Osvaldo

  Networks Research Group Motorola Labs.

• NEEDHAM Michael

  Networks and Infrastructure Research Lab., Motorola Labs.

• Needham Michael

  Networks And Infrastructure Research Lab. Motorola Labs.

関連論文

• QoS Provisioning Architecture for Next Generation Mobile Networks(Mobility Management)(Mobile Multimedia Communications)

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