Dynamic QoS negotiation for next-generation wireless communications systems

Juan Carlos Fernandez, Tarik Taleb, Nirwan Ansari, Kazuo Hashimoto, Yoshiaki Nemoto, Nei Kato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Scopus citations

Abstract

Users in next generation wireless networks are expected to be highly dynamic while maintaining connectivity through different devices with different processing and communication capabilities. In wireless environments, bandwidth is scarce and channel conditions are time-varying. To guarantee Quality of Service (QoS) to users roaming between heterogeneous wireless networks, a dynamic QoS negotiation mechanism, which allows users to dynamically negotiate their service-levels with the network, is required. Several protocols for dynamic service level negotiation have been proposed, each focusing on a particular mode. This paper presents an overview of these protocols and discusses their limitations. To alleviate these shortcomings, a dynamic QoS negotiation scheme to allow users to change their service levels in response to changes in both network conditions and their own resource requirements is proposed. In the proposed scheme, upon an intra-domain handoff of a mobile node, the visited access point consults the previously used access point to confirm the legitimacy of the service negotiation request issued by the mobile node. The performance of the proposed scheme has been investigated and compared with other dynamic negotiation approaches. It was demonstrated that the proposed scheme outperforms the state-of-the-art method, in terms of the signaling overhead and data storage, at the expense of a slight increase in the overall negotiation delay.

Original languageEnglish (US)
Title of host publication2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
Pages3229-3233
Number of pages5
DOIs
StatePublished - Nov 27 2007
Externally publishedYes
Event2007 IEEE Wireless Communications and Networking Conference, WCNC 2007 - Kowloon, China
Duration: Mar 11 2007Mar 15 2007

Publication series

NameIEEE Wireless Communications and Networking Conference, WCNC
ISSN (Print)1525-3511

Other

Other2007 IEEE Wireless Communications and Networking Conference, WCNC 2007
CountryChina
CityKowloon
Period3/11/073/15/07

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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