Title :
Cognitive flow management for QoS in WLANs
Author :
Frantti, Tapio ; Majanen, Mikko ; Sukuvaara, Timo
Author_Institution :
VTT (Tech. Res. Centre of Finland), Oulu, Finland
Abstract :
This paper introduces an embedded control system for cognitive flow management of delay sensitive real-time traffic to improve quality of service (QoS) in Wireless Local Area Networks (WLANs). The management system is based on the fuzzy set theory. It adjusts transceivers´ traffic flow(s) for prevailing network conditions to achieve application dependent quality of service requirements by regulating packet size and transmission interval of the source node. The model was validated by simulating voice over IP (VoIP) calls, video phone conversations, and interactive games in OM-NeT++ network simulator. The achieved results demonstrate that the developed control system is able to regulate packet sizes and transmission intervals to the prevailing application dependent optimum level very fast, accurately and with minimal overshoot.
Keywords :
Internet telephony; fuzzy set theory; quality of service; telecommunication network management; telecommunication traffic; wireless LAN; OM-NeT++ network simulator; QoS; VoIP call; WLAN; cognitive flow management; delay sensitive real-time traffic; embedded control system; fuzzy set theory; interactive game; packet size; quality of service; transceiver traffic flow; transmission interval; video phone conversation; voice over IP; wireless local area network; Delay; Pragmatics; Protocols; Quality of service; Real time systems; Throughput; Wireless LAN; PID; QoS; congestion control; flow control; fuzzy control; packet size control; real-time traffic;
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2011 Third International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4577-1176-3
DOI :
10.1109/ICUFN.2011.5949139