QoS coordinated distributed scheduling for 802.16 mesh networks

Li Der Chou, Yen Cheng Lin, Zi Hong Chen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

IEEE 802.16 WiMAX is one of the popular technologies in the field of wireless networking recently, where channel resource allocation and reservation have become key issues. In the paper a QoS Coordinated Distributed Scheduling scheme (QC-DSCH) based on priorities is proposed to meet the QoS requirements in MAC layer. There are three algorithms in QC-DCSH. Adjusting hold-off time (AH) algorithm exploits scheduling algorithm negotiation decision with three-way handshaking according to the traffic priorities. The allocating mini-slots (AM) algorithm gathers the availability mini-slots information of the neighbors to portion out the data frames adaptively, according to requesters demands with diverse priorities. The dynamically adjusting hold-off time (DH) algorithm can reflect the status of allocated mini-slots and adjusting the hold-off value. The proposed algorithm is able to reduce the average delay and increase the throughput of VoIP traffic.

Original languageEnglish
Title of host publication1st South Central Asian Himalayas Regional IEEE/IFIP International Conference on Internet, AH-ICI 2009
DOIs
StatePublished - 2009
Event1st South Central Asian Himalayas Regional IEEE/IFIP International Conference on Internet, AH-ICI 2009 - Kathmundu, Nepal
Duration: 3 Nov 20095 Nov 2009

Publication series

Name1st South Central Asian Himalayas Regional IEEE/IFIP International Conference on Internet, AH-ICI 2009

Conference

Conference1st South Central Asian Himalayas Regional IEEE/IFIP International Conference on Internet, AH-ICI 2009
Country/TerritoryNepal
CityKathmundu
Period3/11/095/11/09

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