A Model to Investigate Performance of Orthogonal Frequency Code Division Multiplexing
Abstract: Orthogonal Frequency
Code Division Multiplexing (OFCDM) is an attractive multiple access scheme for
high data rate application in fourth-generation (4G) wireless communication
system. Several previous researches were mainly investigated the performance of
OFCDM based on variable spreading factor and subcarrier allocation. However,
there are also several system parameters may affected the performance of OFCDM.
For that purpose, this paper developes a model to investigate the impact of
several parameters on the performance system of OFCDM over Rayleigh Fading
channel as a realistic channel in wireless communication system.The proposed
model is then created in the form of computer simulation using MATLAB
programming in order to show the impact of several parameters for OFCDM’s
performance including number of carriers, size of symbol, symbol rate, bit
rate, size of guard interval and spreading factor. The simulation results show
that the higher number of carriers, larger size of symbol, higher symbol rate,
higher bit rate and larger spreading factor are giving the better system’s
performance in terms of Bit Error Rate (BER). However, the larger guard
interval is giving the worst system’s performance.So all the parameters should
be considered in the implementation of OFCDM for the 4G wireless communication
system.
Author: Nasaruddin, Melinda,
Ellsa Fitria Sari
Journal Code: jptkomputergg120086
