Abstract: LTE and LTE-Advanced have provided a major step forward in mobile communication capability. It helps for enabling mobile service provisioning to approach for first time. In LTE-A system, heterogeneous networks are important to improve system throughput per unit area. This paper presents a review on high data rate LTE-A system. In this, OFDMA technique is used in downlink and SC-FDMA technique is used in uplink. In downlink, the combined usage of inter-cell interference that reduces the interference from macro cell and cell range expansion is very effective for improving throughput performance. This paper focuses on improving capacity in LTE-A system by concept of increasing power. It also focuses on reducing PAPR value of system by using suitable filtering technique. All simulations will be implemented in MATLAB.

Keywords: LTE, PAPR, OFDMA, SC-FDMA etc.