الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
As Mobile data usage is becoming more and more in radio communications systems, Techniques are needed to enhance Mobile network performance and overcome problems like low-SNR at cell edges. MIMO wireless technology is one of these techniques. MIMO is able to considerably enhance network performance and overcome cell edge problems by increasing the number of receive and transmit antennas. With every pair of antennas added to the system, we can achieve more network performance enhancement. This makes MIMO wireless technology one of the most important wireless techniques to be employed in 4G and 5G mobile networks in recent years. LTE mobile networks continue to strive for higher data rates, lower Bit Error Rate and better link reliability in order to provide more advanced services on the go. MIMO systems are capable of achieving higher data rates, lower BER and improve link reliability compared to SISO, single-antenna systems without any additional bandwidth or transmit power. At cell edge coverage areas, where Signal to Noise Ratio (SNR) is minimal, many MIMO approaches like transmit diversity and spatial multiplexing can be deployed. Due to transmit diversity deployment simplicity as it is based on STBC, enhanced model of 64-QAM modulation scheme will be proposed for STBC concatenation to enhance network throughput performance in terms of BER. Finally, a performance comparison between proposed enhancement and ordinary QPSK, 64- QAM and TCM based STBC techniques will be introduced as well.