Packet Scheduling with QoS Differentiation

Authors:
Jeroen Wigard;Nina A. H. Madsen;Pablo Ameigeiras Gutiérrez;Isaías López Sepúlveda;Preben Mogensen
Affiliations:
Nokia Networks, Aalborg, Niels Jernes Vej 10, DK 9220, Aalborg, Denmark E-mail: jeroen.wigard@nokia.com;Nokia Networks, Aalborg, Niels Jernes Vej 10, DK 9220, Aalborg, Denmark E-mail: nina.madsen}@nokia.com;Center for Person Kommunikation (CPK), Fr. Bajersvej 7A-5, DK-9220 Aalborg, Denmark;Center for Person Kommunikation (CPK), Fr. Bajersvej 7A-5, DK-9220 Aalborg, Denmark;Center for Person Kommunikation (CPK), Fr. Bajersvej 7A-5, DK-9220 Aalborg, Denmark
Venue:
Wireless Personal Communications: An International Journal
Year:
2002

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Abstract

This article focuses on the Quality of Service (QoS) achieved by packet scheduling. A packet scheduling algorithm, which can differentiate the QoS among user and service classes, is presented. The algorithm can be tuned from signal to interference ratio (C/I) based scheduling to Round Robin and beyond. Thus, an operator can choose between optimizing the spectral efficiency or giving a fair QoS distribution among the users within a user and traffic class. By combining the two effects, different strategies can be used for different user and service classes. Simulation results for the downlink shared channel (DSCH) are presented and implementation issues are also discussed.