ABSTRACT
The optimization algorithm had been analysed for the improvement of the spectrum efficiency and check trade-off between capacity and fairness for cognitive networks in a low algorithm complexity. Different low complexity algorithms for proportional resource allocation in Long Term Evolution (LTE) and Cognitive Radio Network (CRN) using OFDM signal are used by different researchers already. Here, the target of the optimization algorithm is to provide the sub-carriers assignment and power allocation for each user, assuming that the modulation type is the same for all subcarriers. However, in order to increase the efficiency of the algorithm and reduce the optimization delay, it had been assumed that the power is equally distributed among the sub-carriers.
