Performance Analysis of Space Time Block Code for 4G Wireless Technology

Abstract

The thesis is based on STBC (Space Time Block Code) which provides space timediversity to combat against multipath fading in the eld of wireless communications.At the transmitter end, the data is encoded using the Alamouti's matrix and after itthe encoded data is split into streams which are simultaneously transmitted using nTtransmit antennas and nR receiver antenna over a Rayleigh fading channel. Secondly,dierent types of the SUI ( Stanford University Interim ) channels which are denedfor dierent terrain types are used to analyze BER.At the receiver end, the source information is recovered using the Maximum Likeli-hood Decoding Algorithm with the help of Alamouti's two branches transmit diversityscheme. Then the BER (Bit Error Rates) of dierent types of SUI channels alongwith dierent modulation techniques are calculated. The MatLab version 2009 (a) isused to carry out the simulations.