Characteristics of a wireless communication channel are subjected to a large
scale deterioration process, referred to as the problem of fading. This
paper discusses different techniques for mitigating the fading problems. One
solution to the problem is to add a fading margin on the transmitter, but it
is not an effective solution. The other solution is to use an alternative
statistical behavior of fading channels (applying the basic concepts of
diversity), which use two or more inputs on the receiver to ensure the
correlation of signal. So, the diversity technique is used to improve system
performance in fading channels. Instead of transmitting and receiving the
desired signal through one channel, we have L copies of desired signal
transferred over M different channels. This paper presents analytical
results of the probability of error for diversity techniques which use
Rayleigh Fading Channel for BPSK modulation.
An overview and analysis of BER for three diversity techniques in wireless communication systems
