Abstract:
In the current era of communication technology, each user seeks a
communication system with a better capacity for data transfer and greater
dependability. Each multiplexed signal in orthogonal frequency division
multiplexing (OFDM), a multi-carrier frequency division multiplexing technique, is
orthogonal to the others. The new generation of wireless mobile communication
systems are said to be built around this technology. This technique can transmit
data more reliably and efficiently and can also prevent frequency selective fading
or narrowband interference while retaining excellent spectral efficiency. The
capacity and data rate can then be increased by creating multiple input multiple
output (MIMO) channels using multiple transmit and receive. The main benefit of
using numerous antennas is the ability to achieve larger data rates through
spatial multiplexing and stable performance through diversity. This paper's first
goal is to replicate the wireless system model (802.11a/n) using various types of
GI values and antenna counts (s). The second goal is to examine the MIMOOFDM system utilizing various GI values and antenna counts (s). The
performance of MIMO OFDM systems is analyzed in this research primarily
using the Bit Error Rate (BER) results. In this study, we considered the value of
GI together with the values of 1/2, 1/4, and 1/8 of subcarriers. The MATLAB
framework is used to carry out every simulation.
