quasi-orthogonal space time matrixes for large number of antenna at the transmitter and receiver antennas. There should be more research to obtain the orthogonal space time block code and quasi-orthogonal space time block code that minimize the effect of fading.
network coverage for the end user. Such strategies and methods will be examined to verify their validity and to introduce future solutions to the limitations of wireless communication systems. Wireless communication performance is affected by channel fading, path loss, and interference. There are several techniques that can be used to avoid signal degradation. At short distances, a transmitter and receiver pair is capable of achieving a quality connection. However, relay networks have become a popular