Performance Analysis of Channels of Mimo System with Respect to Adjacent & Co-Channel Interference Using QAM Modulation Technique

Wireless Communication has become one of the most vibrant and emerging section of the communication industry. Mobile communication has developed as one of the broadly used wireless communication nowadays. But with the advancement., wireless communication has to face several technical challenges that must be overcome. The basic phenomenon due to which wireless transmission becomes unreliable is time varying fading and adjacent and cochannel interference that occurs among cells in neighboring areas. In this paper the impact of adjacent and co-channel interference is studied and BER has been investigated and compared for three different channels i.e. Rayleigh fading channel., Rician fading channel and AWGN channel using a QAM modulated technique.