Advance in Electronic and Electric Engineering. ISSN 2231-1297, Volume 4, Number 2 (2014), pp. 201-206 © Research India Publications http://www.ripublication.com/aeee.htm Performance Analysis of Smart Antenna Using Beam Forming Techniques Pradeep Kumar Nayak 1 , Sachidananda Padhi 2 and Subrat Sethi 3 1 Research Scholar (B.U), Berhampur, Ganjam,Odisha. 2 Sachidananda Padhi, M.Tech (I.I.T, KGP), W.B. 3 Subrat Sethi, M.Tech (I.I.T, KGP), W.B. E-mail: 1 pradeep190476nayak@gmail.com, 2 sachi579padhi@gmail.com, 3 subrat.iitkgp@hotmail.com Abstract Next generation wireless communication epoch establish significant developmental platform on characterizing and designing of Smart antenna, as it enhances the performance of mobile communication systems, by increasing channel capacity, spectrum efficiency, coverage range and steering multiple beams to track multiple mobiles. The most important feature of a smart antenna system is its beam forming capability. Smart antennas usually include both switched beam forming and adaptive beam forming systems. Several fixed beam patterns are available in Switched beam systems i.e. a decision is made as to which beam to access, at a particular time. Whereas Beam formed adaptive systems allow the antenna to steer the beam to any direction of interest while simultaneously nullifying interfering signals. In this paper, comparative analysis of BER vs Eb/N 0 , with and without beam forming, in a multipath Rayleigh fading channel is carried out by MATLAB simulation. Keywords: Adaptive beam forming, smart antenna system, switched beam forming. 1. Introduction A single antenna element is mostly omni–directional. If a base station uses an omni- directional antenna and a user communicates with this station, every signal that is send back and forth between the two devices is at the same time a source of interference for any other communication taking place within the same cell.