NewRemappingStrategyforPDCCH创新.PDFVIP

Journal of Communications Vol. 9, No. 7, July 2014 New Remapping Strategy for PDCCH Scheduling for LTE-Advanced Systems 1 1 1 2 Bala Alhaji Salihu , DachengYang , Xin Zhang , and Suleiman Zubair 1Beijing University of Posts and Telecommunications, 10 Xituchen Road, Haidian District, Beijing 100876, China. 2UTM-MIMOS Centre of Excellence (CoE) in Telecommunication Technology, Universiti Teknologi Malaysia Email: bala.salihu.a@ ; yangdc@; zhangxin@; zsuleiman2@live.utm.my Abstract—In LTE-A, efficient Physical Downlink Control Secondary Synchronization Signals (S-SS), Physical Channel (PDCCH) scheduling is fundamental to ensuring not Multicast Channel (PMCH) and Physical Downlink only users’ Quality of Service (QoS) but also bursty data Shared Channel (PDSCH). channels. However, the limited resource available for PDCCH PDSCH performance evaluation cannot be discussed has proven to be a major issue that hampers users’ scheduling. without making reference to characteristics and constrain By principle, every user equipment (UE) admitted into the network is expected to be scheduled by the control channel prior of PDCCH because of the fact that downlink capacity and to gaining access to data channel’s resources (i.e. Physical control channel scheduling are functionally Resource Blocks-PRBs). However, the limited PDCCH interdependent in LTE systems. The PDSCH is the resources in traditional systems usually result to some UEs channel