“…To the best of our knowledge, there are very few articles investigating power allocation in the OFDM-DCSK systems [13][14][15]. Thus, in this paper, we focus on the OFDM-DCSK system presented in [14] to change a non-optimal single-variable problem into a multivariable problem. In [13], power allocation has been applied for performance improvement of the MC-DCSK system in additive white Gaussian noise (AWGN) channel.…”