Providing application-level QoS in 3G/4G wireless systems: A comprehensive framework based on multirate CDMA

Frank Fitzek, Andreas Köpsel, Adam Wolisz, Manjunath Krishnam, Martin Reisslein

Research output: Contribution to journalArticle

58 Scopus citations

Abstract

The emerging applications for 3G and 4G wireless systems typically require highly heterogeneous and time-varying quality of service from the underlying protocol layers. The wireless links, however, provide only an unreliable communication channel that suffers from temporal outages. As a consequence, protocol mechanisms are needed that, based on the unreliable wireless links, provide the different service qualities required by the emerging applications. In this article we identify the emerging IP-based applications for 3G and 4G wireless systems and categorize their QoS requirements. We discuss the wireless access mechanisms that show promise as the basis for supporting these applications. We then propose a set of protocol mechanisms that, based on the discussed wireless access mechanisms, provide the required QoS for the different application categories.

Original languageEnglish (US)
Pages (from-to)42-47
Number of pages6
JournalIEEE Wireless Communications
Volume9
Issue number2
DOIs
StatePublished - Apr 1 2002

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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