Performance Analysis of OFDM by Using Different Modulation Techniques

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Executive Summary

This paper is to demonstrate the concept and feasibility of an OFDM system, and investigate how its performance is changed by varying some of its major parameters In a single carrier communication system, the symbol period must be much greater than the delay time in order to avoid Inter-Symbol Interference (ISI). Since data rate is inversely proportional to symbol period, having long symbol periods means low data rate and communication inefficiency. OFDM (Orthogonal Frequency Division Multiplexing) is a multi carrier digital communication scheme to solve both issues. This is met by developing a MATLAB program to simulate a basic OFDM system.

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