A novel QoS-guaranteed proportional fairness with joint space-time-frequency scheduling

Authors:
Weijie Huang;Rongfang Song
Affiliations:
Nanjing University of Posts and Telecommunications, Nanjing, China;Nanjing University of Posts and Telecommunications, Nanjing, China and National Mobile Communications Research Laboratory, Southeast University, Nanjing, China
Venue:
APCC'09 Proceedings of the 15th Asia-Pacific conference on Communications
Year:
2009

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Abstract

For the downlink of MIMO-OFDM system, a novel proportional fairness with joint space-time-frequency scheduling is proposed in this paper. On one hand, by space-time-frequency scheduling one can gain multiuser spatial multiplexing on the same subcarrier in one timeslot. On the other hand, with modified traditional proportional fairness, the system can provide QoS guarantee for various service types. The combination of space-time-frequency scheduling and novel proportional fairness makes the system perform well in respect of QoS provision without sacrificing much throughput.