Review of Downlink Scheduling Over LTE Cellular Network

Abstract

Many researchers interested in Long-term evaluation LTE and LTE advanced network, which considered one of the most important technical at networks and communication field, several issues have been studying in different approaches in target of enhancing the development of communications, and improves network performance for different types of traffic flows, which led to achieve higher user bit-rate, lower delays, increased spectrum efficiency, supported of diverse QoS requirements, and lower cost. Resource scheduling and mitigation is a key design to achieving these goals. LTE downlink scheduling considered as essential component in radio resource management, that support real-time and non-real-time traffic flow, such as video, VoIP, web browsing, and video calls, different algorithms have been provided for manage radio resource. Several approaches and algorithms have been proposed in the literature to address the needed of allocated the available resources efficiently; diversity and multiple algorithms are related to factors considered for optimum management of the radio resource, specifically the type of traffic flow and quality of service required. This article presents a review of various radio resource allocation strategies that proposed for downlink scheduling in LTE network, which have been studied under many factors and variables.