Towards a QoS-aware IEEE 802.16 downlink sub-frame mapping scheme

Sarigiannidis, PG; Louta, M; Stratogiannis, DG; Tsiropoulos, GI

dc.contributor.author	Sarigiannidis, PG	en
dc.contributor.author	Louta, M	en
dc.contributor.author	Stratogiannis, DG	en
dc.contributor.author	Tsiropoulos, GI	en
dc.date.accessioned	2014-03-01T02:47:07Z
dc.date.available	2014-03-01T02:47:07Z
dc.date.issued	2010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/33003
dc.subject	Downlink mapping	en
dc.subject	IEEE 802.16	en
dc.subject	OFDMA	en
dc.subject	QoS	en
dc.subject	Simulation	en
dc.subject.other	Downlink mapping	en
dc.subject.other	IEEE 802.16	en
dc.subject.other	OFDMA	en
dc.subject.other	QoS	en
dc.subject.other	Simulation	en
dc.subject.other	Frequency division multiple access	en
dc.subject.other	Wimax	en
dc.subject.other	Mapping	en
dc.title	Towards a QoS-aware IEEE 802.16 downlink sub-frame mapping scheme	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/GLOCOMW.2010.5700136	en
heal.identifier.secondary	http://dx.doi.org/10.1109/GLOCOMW.2010.5700136	en
heal.identifier.secondary	5700136	en
heal.publicationDate	2010	en
heal.abstract	IEEE 802.16 (WiMAX) is considered as one of the most promising wireless access technologies supporting high-capacity and long-distance communications as well as user mobility. A problem that should be addressed in the context of multi-access communications is the efficient accommodation of traffic requests to the downlink subframe. The allocation operation in downlink sub-frame is not standardized, while only restrictions on the usage of downlink sub-frame's bandwidth are defined. The most noticeable restriction is the rectangular restriction, requiring all downlink allocations to be mapped in a two-dimensions rectangular shaping. This study is a first step towards defining a QoS-aware mapping scheme, prioritizing traffic requests in accordance with the strict delay requirements they pose. The mapping scheme applies horizon scheduling, permitting bursts to be scheduled efficiently and in a simple way, following the horizons as pilots. The QoS-aware mapping scheme is evaluated by means of simulation experiments, which indicate that the proposed scheme operates effectively and efficiently, by reducing the number of unserviced users and traffic requests, and the portion of the dropped real-time traffic. ©2010 IEEE.	en
heal.journalName	2010 IEEE Globecom Workshops, GC'10	en
dc.identifier.doi	10.1109/GLOCOMW.2010.5700136	en
dc.identifier.spage	1243	en
dc.identifier.epage	1247	en