A novel multi-radio packet scheduling algorithm for real-time traffic on generic link layer

Authors:
Yang Cui;Yubin Xu;Xuejun Sha;Rongqing Xu;Zhe Ding
Affiliations:
Communication Research Center, Harbin Institute of Technology, Harbin, China;Communication Research Center, Harbin Institute of Technology, Harbin, China;Communication Research Center, Harbin Institute of Technology, Harbin, China;Communication Research Center, Harbin Institute of Technology, Harbin, China;Communication Research Center, Harbin Institute of Technology, Harbin, China
Venue:
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Year:
2009

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Abstract

In this paper, a novel multi-radio packet scheduling algorithm, QU, is proposed for real-time traffic on generic link layer (GLL). First, a scheduling-utility function is designed to represent the utility of scheduling a packet to a radio access with the goal to guarantee QoS and improve spectrum utilization. Second, using this utility function, a multi-radio packet scheduling model is presented based on joint consideration of QoS, fairness and spectrum efficiency, while the solution for this model is NP problem; Finally, Hopfield neural network (HNN) is used to fast and efficiently find an optimal solution for the scheduling model. Simulation results show that, compared with M-LWDF and PLR algorithms, QU algorithm has lower packet loss ratio and higher spectrum efficiency while could meet the allowable maximum delay requirement.