Asian Journal of Engineering and Technology Innovation

Survey on Various Downlink Resources Allocation Scheduling Schemes Proposed in Long Term Evolution

Heena Kauser, Shilpa Shashikant Chaudhari

Reva Institute of Technology and Management, Rukmini Knowledge Park, Kattigenahalli, Yelahanka, Near Border Security Bustop, Bengaluru, Karnataka-560064, India.

Abstract

LTE is a 4G technology in cellular network which provides high quality of services and also supports a large variety of applications. One of the major problems in LTE is allocation of resources among multiple users on the downlink of a LTE cellular network, this problem is discussed in detail. Scheduling is a process of dynamically scheduling the Radio resources to UE’s, scheduling procedure is carried out by scheduler or packet scheduler. The scheduling algorithms in LTE are not standardized by the 3GPP, hence various proposed scheduling scheme are available in LTE literature that are classified based on certain criteria and discussed. The scheduler should take all considerations such as fairness, throughput, and efficiency into account while performing the process of scheduling the scarce radio resources to the users. The main objective of any Resource allocation scheduling scheme is to utilize efficiently the available channel bandwidth and achieve the desired QoS requirements, maximize the network performance.

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