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Delay-Aware Packet Scheduling (DAPS) Algorithm in 3GPP LTE System  

Choi, Bum-Gon (성균관대학교 정보통신공학부)
Chung, Min-Young (성균관대학교 정보통신공학부)
Lee, Hye-Kyung (삼성전자 DMC연구소)
Kim, Tai-Suk (삼성전자 DMC연구소)
Kang, Jee-Woong (삼성전자 DMC연구소)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.5B, 2009 , pp. 498-508 More about this Journal
Abstract
In wireless mobile environments, large bandwidth and high QoS (Quality of Service) are recently required to support the increased demands for multimedia services. LTE (Long Term Evolution) is one of the promising solutions for the next generation broadband wireless access systems. To efficiently use downlink resource and effectively support QoS, packet scheduling algorithm is one of the important features in LTE system. In this paper, we proposed DAPS (Delay-Aware Packet Scheduling) algorithm to consider QoS requirements of delays for various traffic classes as well as channel condition and fairness. To reflect delay experiences at scheduling instance, DAPS observes how queue waiting time of packet is closed to maximum allowable delay. The simulation results show that the DAPS algorithm yields better performance for delay experience by increasing the number of transmitted packets with satisfying the required delay time compared with existing scheduling algorithms.
Keywords
LTE; QoS; Downlink Packet Scheduling; PF; M-LWDF;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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