Application signaling protocols as basis for qos in IP-vased wireless networks

Authors:
Robil Daher;Djamshid Tavangarian;Abbas Malekpour
Affiliations:
Chair for Computer Architecture, Institute of Computer Science, University of Rostock, Rostock, Germany;Chair for Computer Architecture, Institute of Computer Science, University of Rostock, Rostock, Germany;Chair for Computer Architecture, Institute of Computer Science, University of Rostock, Rostock, Germany
Venue:
IICS'05 Proceedings of the 5th international conference on Innovative Internet Community Systems
Year:
2005

Citing 4
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Computer Communications

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Abstract

The wireless resources such as bandwidth in case of wireless networks (WNs) are very restricted compared with wired networks. Thus, providing integrated service for WNs could lead to high traffic and instable performance because of the high link error. However, some application signaling protocols transport information about their resource requirements; this information is similar to that transported by QoS-signaling protocol. The usage of these application signaling protocols to perform a kind of QoS can reduce the control traffic generated on the wireless side effectively. In this respect, new structure of QoS is presented, where a wireless access server (WAS) communicates with the applications server, and the base stations in order to provide a kind of QoS. This method is applied on SIP-based WLAN telephony. The experiments on our implemented software presented relatively small delay times, in average: 13 ms for flow reservation and 16 ms for updating the wireless state in WAS. This provides an effective structure of QoS for VoIP applications.