AB - © 2016 IEEE. This paper proposes an Improved Quality-Based Channel State Feedback (IQCF) scheme in multicast systems with greedy scheduling for multiple multicast groups. The proposed scheme outperforms the Quality-Based Channel State Feedback (QCF) scheme in the literature by selecting a scheduling outage group for data transmission when scheduling outage happens. We also analyze its performance in terms of average capacity and outage probability, and present a closed-form system average capacity expression over Rayleigh fading channels. The numerically evaluated analytical results are verified by simulations. AU - Li, H AU - Huang, X AU - Guo, YJ DA - 2016/11/21 DO - 10.1109/ISCIT.2016.7751594 EP - 76 JO - 2016 16th International Symposium on Communications and Information Technologies, ISCIT 2016 PY - 2016/11/21 SP - 73 TI - Improved quality-based channel state feedback scheme in multicast systems with greedy scheduling Y1 - 2016/11/21 Y2 - 2026/05/25 ER -