TY - GEN
T1 - An efficient scheduling algorithm for QoS provisioning in WiMAX networks
AU - Ma, Maode
AU - Xie, Pengfei
AU - Bose, Sanjay Kumar
AU - Maag, Stephane
PY - 2008/12/1
Y1 - 2008/12/1
N2 - The advantages of high access speed and differentiated service provisioning with WiMAX technology has made it competent with current wired networks solutions. The various service types have been defined in recent 802.16 standards. However, the detailed traffic scheduling algorithm has been left empty to researchers. In this paper, the new concept of urgency index (UI) is brought out as the system parameter to monitor different traffic services. UI is a set of system variables to reflect the urgency of bandwidth need for a specific service flow. Traffic scheduling is done based on the UI values. For different types of services, different UI changing profiles have been proposed to achieve best scheduling outcome. This scheme was implemented and simulation results have been compared to other proposed scheduling algorithms to evaluate its performance. The results show the UI based scheduling algorithm can achieve lower packets drop rate and also lower mean delay time at all traffic loads.
AB - The advantages of high access speed and differentiated service provisioning with WiMAX technology has made it competent with current wired networks solutions. The various service types have been defined in recent 802.16 standards. However, the detailed traffic scheduling algorithm has been left empty to researchers. In this paper, the new concept of urgency index (UI) is brought out as the system parameter to monitor different traffic services. UI is a set of system variables to reflect the urgency of bandwidth need for a specific service flow. Traffic scheduling is done based on the UI values. For different types of services, different UI changing profiles have been proposed to achieve best scheduling outcome. This scheme was implemented and simulation results have been compared to other proposed scheduling algorithms to evaluate its performance. The results show the UI based scheduling algorithm can achieve lower packets drop rate and also lower mean delay time at all traffic loads.
UR - https://www.scopus.com/pages/publications/62949177224
U2 - 10.1109/ITST.2008.4740264
DO - 10.1109/ITST.2008.4740264
M3 - Conference contribution
AN - SCOPUS:62949177224
SN - 9781424428588
T3 - Proceedings - 2008 8th International Conference on Intelligent Transport System Telecommunications, ITST 2008
SP - 240
EP - 245
BT - Proceedings - 2008 8th International Conference on Intelligent Transport System Telecommunications, ITST 2008
T2 - 2008 8th International Conference on Intelligent Transport System Telecommunications, ITST 2008
Y2 - 22 October 2008 through 24 October 2008
ER -