LTE_MTC_ICIN15_v3.pdf-NetworksandEvolutionTowards创新.PDFVIP

Recent Advancements in M2M Communications in 4G Networks and Evolution Towards 5G ‡ † † ‡ † Rapeepat Ratasuk , Athul Prasad , Zexian Li , Amitava Ghosh , and Mikko A. Uusitalo ‡Nokia Networks, Arlington Heights, IL, USA. Email: {rapeepat.ratasuk, amitava.ghosh}@ †Nokia Technologies, 00045 Nokia Group, P.O. Box 226, Espoo, Finland. Email: {Athul.Prasad, Zexian.Li, Mikko.A.Uusitalo}@ Abstract—Machine-to-Machine (M2M) communications is (MTC) using 3rd Generation Partnership Project (3GPP) LTE- considered to be one of the key enablers for the provisioning of A network infrastructure, as well as the possible evolution advanced applications and services such as smart cities and towards Fifth Generation (5G) systems. hospitals, automated vehicular and industrial device operation. From a physical layer perspective, the work done in [1], [2] Currently, in LTE-Advanced systems, the main focus has been on considers the random access procedure with dense deployment supporting massive deployment of low cost devices, with enhanced radio access network coverage. In this work, we present the recent of MTC devices as one of the key challenges to be addressed, MTC enhancements being studied for Rel-12 and Rel-13 LTE especially taking into account the possible performance systems. Detailed performance analysis based on LTE system degradation for normal devices. Some of the other key issues settings are