An Adaptive Codec and Frame Size Modification Based QoS Algorithm over Multi-rate WLANs

M. Fatih Tüysüz, Haci A. Mantar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The demand for Voice over IP (VoIP) services over wireless local area networks (WLANs) and Quality of Service (QoS) support in WLANs have grown substantially in recent years. IEEE 802.11e QoS enhancement standard has an important role on this expansion as well. It provides a suitable solution for delay sensitive real-time multimedia applications. Under the circumstance of any deterioration of wireless link conditions, IEEE 802.11 PHY/MAC specifications allow mobile nodes to select a proper transmission rate to optimize bit transmission. However, if a node selects lower transmission rate, packet losses and delays increase due to multi-rate effect. Therefore, all active calls have a general degradation. In this paper, we propose a fast, efficient, adaptive, proactive codec and frame size modification algorithm for the optimization of maximum throughput and voice quality on multi-rate WLANs.

Original languageEnglish
Title of host publicationRecent Trends in Wireless and Mobile Networks, Second International Conference,WiMo 2010, Proceedings
EditorsAbdulkadir Ozcan, Nabendu Chaki, Dhinaharan Nagamalai
Pages137-147
Number of pages11
DOIs
Publication statusPublished - 2010
Externally publishedYes
Event2nd International Conference on Wireless and Mobile networks, WiMo 2010 - Ankara, Turkey
Duration: 26 Jun 201028 Jun 2010

Publication series

NameCommunications in Computer and Information Science
Volume84
ISSN (Print)1865-0929

Conference

Conference2nd International Conference on Wireless and Mobile networks, WiMo 2010
Country/TerritoryTurkey
CityAnkara
Period26/06/1028/06/10

Keywords

  • IEEE 802.11e
  • multi-rate WLANs
  • QoS
  • Voice over IP

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