Wireless MIMO(Multiple input and multiple output) is a wireless communication setup in which the transmission is done using multiple antenna at both transmitter and the receiver side for efficient and errorless transmission. In this paper an algorithm is proposed for selecting the node which will take part in intra communication between different clusters of mimo network. The advantage of this algorithm is enhancement in security of a wireless MIMO thus making it less prone to attack, hence improving the reliability of data. © 2018 IEEE.