This work investigates the combination of fiberoptic and wireless radio frequency (RF) channels that enable the transmission of RF signals over an optical medium, which improves the load separation of the entire system and increases its bandwidth. This concept is called a hybrid system. We studied the influence of additive white Gaussian noise (AWGN) and of multiplicative noise over single-input single-output (SISO) and multiple-input multiple-output (MIMO) channels to examine the differences in channel capacity and bandwidth, spectral efficiency and bit error rate (BER). We show that hybrid systems can provide an acceptable communication solution for a large number of devices that use a wireless network.