A Survey On LTE Downlink Packet Scheduling

Abstract: Long term evolution (LTE) is a 3GPP (Third Generation Partnership Project) 4G technology which enhances the development in the field of telecommunication and by improving the performance of the network for the different types of traffic flows. As it is an all IP technology so, it is the most emerging technology now a days. The fact that 3G long term evolution is a packet based networks brings some improvements in the form of higher bit rate, lower latencies and a variety of services. This paper presents a survey of the different proposed scheduling algorithms under variable conditions and accordingly, the variation in their results in terms of the performance metrics like throughput, packet loss, delay time, spectral efficiency, fairness etc.

Keywords: Long term evolution (LTE), Channel Quality Indicator (CQI), Physical downlink common control channel (PDCCH), User Equipment (UE), Quality of Service (QoS).