Yong Fan Petteri Lunden Markku Kuusela Mikko Valkama Efficient Semi-Persistent Scheduling for VoIP on EUTRA Downlink. 1-5 2008 VTC Fall http://dx.doi.org/10.1109/VETECF.2008.394 conf/vtc/2008f db/conf/vtc/vtc2008f.html#FanLKV08