Abstract: In wireless communication system, there exists a problem of fading, due to which sometimes very weak signal will be received on another side resulting in errors in received bits. Bit error rate (BER) should be improved for getting good quality of signal. One of the ways to improve BER is Beam Forming technique. In this paper, the BER is analysed for BPSK in Rayleigh fading channel with 2 or more transmitter antenna and 1 receiver antenna with or without beam forming.

Keywords: MIMO, Multipath, fading, beam forming.