Performance of MIMO-STBC Decode and Forward Cooperative Communications with Channel Estimation Error over Nakagami-m Fading Channels

In Cooperative Wireless Communication, system performance decreases due to the improper estimation of the channel. We analyzed MIMO-STBC based Decode and Forward (DF) Cooperation Communication System, considering the effect of error, arises due to the improper estimation of channel. We have considered Decode Forward (DF) based MIMO Space Time Block Code (STBC) Cooperative Communication Network considering channel is NAKAGAMI-m Fading Channel. Upper Bound SER expression and Theoretical Symbol Error Rate (SER) expression for MPSK system has been derived for three nodes Cooperation model. We performed simulations to verify Theoretical SER results. The Result shows that increasing the value of SNR causes no significant gain in performance and the Symbol Error Rate performance depends less on Source Node – Relay Node Channel link and depends more on Relay Node – Destination Node Channel link.