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http://dx.doi.org/10.6109/JKIICE.2009.13.1.145

A study on uplink QoS packet scheduler for VoIP service in IEEE 802.16 systems  

Jang, Jae-Shin (인제대학교 정보통신공학과)
Lee, Jong-Hyup (인제대학교 정보통신공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.13, no.1, 2009 , pp. 145-152 More about this Journal
Abstract
IEEE 802.16e standard, a kind of WMAN standard, was established to support data services with cheaper cost to mobile users than traditional mobile communications system and wireless LAN system can do. In this paper, we propose an uplink QoS packet-scheduler for VoIP service which can be installed in IEEE 802.16 system and evaluate its performance with NS-2 network simulator. The proposed QoS packet-scheduler consists of three procedures: determining scheduler interval, determining the amount of resource assignment, and deciding which mobile station the base station should serve first among multiple mobile stations. According to numerical results, the proposed QoS packet-scheduler can provide more increased system capacity by 220% than UGS service scheme does and by 25 % than ertPS service scheme does.
Keywords
QoS; IEEE 802.11; VoIP; UGS; ertPS;
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