Mobile networks have triggered advances and changes in telecommunications world over the last two decades. In addition to the voice communication, the data usage has grown day by day. The recent increase of the data usage in mobile networks and appearance of new applications such as online gaming, mobile TV, streaming contents have greatly motivated the 3rd Generation Partnership Project (3GPP) to work on the Long Term Evolution (LTE). 3GPP LTE is the evolution of the Universal Mobile Telecommunications System (UMTS) which will make possible to deliver high quality multimedia services according to the users' expectations. LTE offers many significant improvements over previous technologies such as UMTS and High?speed packet access (HSPA). Higher downlink and uplink speeds, lower latency and simpler network architecture are among the new and important features that are provided in LTE. In this paper, the simulations for the performance analysis of LTE are presented. The effects of different parameters and other factors are investigated. The performance analysis results are shown in terms of Block Error Ratio (BLER) and Throughput versus Signal?to?Noise Ratio (SNR).