Radio Resource Management In LTE

Abstract

This thesis is based on the study of scheduling algorithms in LTE (Long Term Evolution). LTE is an evolution of the UMTS (Universal Mobile Telecommunications System) standardized by the 3GPP (3rd Generation Partnership Project) in its Rel. 8 for the development of wireless broadband networks with very high data rates. It enables mobile devices such as smart phones, laptops, tablets to access internet at a very high speed data along with lots of multimedia services. The future of LTE lies in being implemented in various electronic devices to exchange data wirelessly at very high speeds. Technically, the Long Term Evolution provides a high data rate and can operate in different bandwidths ranging from 1.4MHz up to 20MHz. In terms of features the latest Release of LTE (Rel. 10 – LTE-Advanced) aims to deliver enhanced peak data rates to support advanced services and applications (100 Mbit/s for high and 1 Gbit/s for low mobility, low latency (10ms round-trip delay), improves system capacity and coverage, supports multi-antenna and reduces operating costs by introducing concepts like SON and allowing seamless integration with existing mobile network systems. Scheduling is basically the process of making decisions by a scheduler regarding the distribution of resources (time and frequency) in a telecommunications system among its users. The Proportional Fair and the Round Robin scheduling algorithms have been considered and discussed in this dissertation. The analysis of these scheduling algorithms has been done through simulations executed on a MATLAB The system simulation steps are programmed each in a separate mfile. These files contain a group of communication toolbox functions are used to represent different channels including LTE channels and to simulate transmitting and receiving