Congestion avoidance mechanism in WLANs

Papaoulakis, M

dc.contributor.author	Papaoulakis, M	en
dc.date.accessioned	2014-03-01T02:44:31Z
dc.date.available	2014-03-01T02:44:31Z
dc.date.issued	2007	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31862
dc.subject	AP dominance	en
dc.subject	AP reselection mechanism	en
dc.subject	Beacon frame	en
dc.subject	Congestion avoidance	en
dc.subject	QoS	en
dc.subject	RF power control	en
dc.subject.other	Carrier sense multiple access	en
dc.subject.other	HTTP	en
dc.subject.other	Internet protocols	en
dc.subject.other	Quality of service	en
dc.subject.other	Telecommunication services	en
dc.subject.other	Wireless local area networks (WLAN)	en
dc.subject.other	AP dominance	en
dc.subject.other	AP reselection mechanism	en
dc.subject.other	Beacon frame	en
dc.subject.other	Real time Transport Protocol (RTP)	en
dc.subject.other	RF power control	en
dc.subject.other	Congestion control (communication)	en
dc.title	Congestion avoidance mechanism in WLANs	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/PIMRC.2007.4394664	en
heal.identifier.secondary	http://dx.doi.org/10.1109/PIMRC.2007.4394664	en
heal.identifier.secondary	4394664	en
heal.publicationDate	2007	en
heal.abstract	Wireless LANs are continuously expanding not only in terms of coverage but also in terms of traffic and services. This tremendous growth is ought to the flexibility that IEEE 802.11 networks offer and also to the extremely low cost of those network's components. Primary, the WLANs were used for office or home applications, in order to provide a wireless extension of the already existent wired LANs, the well-known Ethernet IEEE 802.3. The main services that were carrying, were legacy IP services, like HTTP browsing, FTP and email. These services have specific Quality of Service (QoS) requirements [1]. WLANs have well-tested MACs mechanisms in order to satisfy these requirements. The Carrier Sense Multiple Access / Collision Avoidance, the RTS/CTS and the Fragmentation mechanisms, were satisfactory features for the above services and requirements. Nowadays, we have WiFi devices with much wide capabilities, like as VoIP phones, wireless cameras for home surveillance and multimedia adapters/bridges that bring such broadband services to the end-user. Those new applications, introduce new traffic, schemes profiles and of course much more restricted QoS requirements [1]. On the other hand, there are new challenges for the multimedia services, which are being served over Real-time Transport Protocol (RTP). The new key performance indicators that arising, are the jitter and the delay of packet delivery [1]. Without sophisticated QoS mechanisms, the existing version of the 802.11 standard doesn't optimize the transmission of voice and video. Thus, new requirements to provide guaranty QoS in modern WLAN, bring to the foreground the need, for new WLAN MACs protocols, which are going to face up these challenges. © 2007 IEEE.	en
heal.journalName	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC	en
dc.identifier.doi	10.1109/PIMRC.2007.4394664	en