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Performance Analysis of Different Diversity Combining Techniques with MIMO Systems

Mitesh Patel, Nirav Patel, Anurag Paliwal

In wireless mobile communications, diversity techniques are widely used to reduce the effect of multipath fading and improve the reliability of transmission without increasing the transmitted power or sacrificing the bandwidth. The diversity technique requires multiple replicas of transmitted signals at the receiver, all carrying the same information but with small correlation in fading statistics. Proper combination of various samples results in greatly reduced severity of fading, and correspondingly, improved reliability of transmission. In most wireless communication systems a number of diversity methods are used in order to get better performance.