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Performance Evaluation of LTE Physical Layer

Wireless networks have undergone an unprecedented expansion in recent years. This can be attributed to the deployment of successive telecommunications generations dedicated mainly to telephony (2nd Generation GSM), multimedia (3rd Generation UMTS) as well as the 4G (Long Term Evolution: LTE). This last brings a real turning point in the profusion and disparity of solutions. In fact, the 3rd Generation Partnership Project Long Term Evolution (3GPP LTE) was outcome by cooperation between groups of telecommunications consortium known as 3rd Generation Partnership Project to improve the Universal Mobile Telecommunications System (UMTS) standard. It supports up to 300 Mbps for downlink data transmission using the Orthogonal Frequency Division Multiplexing (OFDM) modulation and up to 75 Mbps throughput for the uplink using the Single Carrier-Frequency Division Multiple Access (SC-FDMA) modulation scheme. The present work aims to study LTE physical layer performance evaluation for downlink transmission. A comprehensive investigation of the LTE performance analysis is presented including the Bit Error Rate (BER) and Block Error Rate (BLER) performance results for different values of the Channel Quality Indicator (CQI) which indicates the highest possible modulation scheme and coding rate, for which the block error rate in the channel decreasesin the LTE physical layer.