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

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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 http://hdl.handle.net/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


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