In wireless communication systems, interference is an essential factor that affects a network's performance, but now, network operators and researchers are working to minimize this effect. In LTE networks, intercell interference is a major limiting factor that affects the performance of the downlink. Because spectrum bandwidth is scarce, operators are compelled to reassign frequency in a process called frequency reuse. However, the downlink of the current deployment LTE network has low average throughput and data rate; this results from interfering cells from adjacent eNodeB interrupting the serving eNodeB. For cell-edge users (CEUs), the effect of inter-cell interference is especially severe. Therefore, to improve the throughput, inter-cell interference must be mitigated. In this research, a comprehensive evaluation of inter-cell interference and the BER on the physical downlink shared channel downlink of an LTE cellular network is undertaken. It uses models built using MATLAB to carry out simulations. Simulation results are obtained for BER for different adaptive modulation and also simulation of the PDSCH transceiver. Simulation results also show the effect of inter-cell interference on the downlink throughput. Moreover, estimation of the throughput and BER were obtained for different simulation configurations.

Documentos apresentados no âmbito do reconhecimento de graus e diplomas estrangeiros