A call admission control framework for voice over WLANs

Yi Qian, Rose Qingyang Hu, Hsiao-Hwa Chen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

In this article a call admission control framework is presented for voice over wireless local area networks (WLANs). The framework, called WLAN Voice Manager, manages admission control for voice over IP (VoIP) calls with WLANs as the access networks. WLAN Voice Manager interacts with WLAN medium access control (MAC) layer protocols, soft-switches (VoIP call agents), routers, and other network devices to perform end-to-end (ETE) quality of service (QoS) provisioning and control for VoIP calls originated from WLANs. By implementing the proposed WLAN Voice Manager in the WLAN access network, a two-level ETE VoIP QoS control mechanism can be achieved: level 1 QoS for voice traffic over WLAN medium access and level 2 QoS for ETE VoIP services in the networks with WLANs as the local access. The implementation challenges of this framework are discussed for both level 1 and level 2. Possible solutions to the implementation issues are proposed and other remaining open issues are also addressed.

Original languageEnglish
Pages (from-to)44-50
Number of pages7
JournalIEEE Wireless Communications
Volume13
Issue number1
DOIs
Publication statusPublished - 2006 Feb 1

Fingerprint

Congestion control (communication)
Wireless local area networks (WLAN)
Quality of service
Managers
Computer networks
Medium access control
Routers
Access control
Telecommunication traffic
Switches
Network protocols

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Qian, Yi ; Hu, Rose Qingyang ; Chen, Hsiao-Hwa. / A call admission control framework for voice over WLANs. In: IEEE Wireless Communications. 2006 ; Vol. 13, No. 1. pp. 44-50.
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A call admission control framework for voice over WLANs. / Qian, Yi; Hu, Rose Qingyang; Chen, Hsiao-Hwa.

In: IEEE Wireless Communications, Vol. 13, No. 1, 01.02.2006, p. 44-50.

Research output: Contribution to journalArticle

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