Resource Scheduling Algorithms in Long Term Evolution (LTE)

Abstract

LTE is the evolution of the Universal Mobile Telecommunications System (UMTS). LTE intends to create a new radio-access technology which will provide high data rates, a low latency and a greater spectral efficiency. The downlink physical resource of the LTE is represented as a time-frequency resource grid consisting of multiple Resource Blocks (RB). A scheduler is a key element in the Base Station (BS) and it assigns the time and frequency resources to different users in the cell. In this thesis the Best CQI and Round Robin scheduling algorithms were investigated. The implementation, analysis and comparison of both scheduling algorithms were done through simulations executed on a MATLAB-based downlink link level simulator from the Vienna University. The impact of the scheduling schemes on the throughput was examined and the fairness of each scheduling scheme was investigated.