http://www.iaeme.com/IJECET/index.asp 28 editor@iaeme.com International Journal of Electronics and Communication Engineering & Technology (IJECET) Volume 7, Issue 1, Jan-Feb 2016, pp. 28-44, Article ID: IJECET_07_01_004 Available online at http://www.iaeme.com/IJECET/issues.asp?JType=IJECET&VType=7&IType=1 Journal Impact Factor (2016): 8.2691 (Calculated by GISI) www.jifactor.com ISSN Print: 0976-6464 and ISSN Online: 0976-6472 © IAEME Publication PERFORMANCE ANALYSIS OF CLIPPED STBC CODED MIMO OFDM SYSTEM Koiloth S R S Jyothsna and Tummala Aravinda Babu Department of Electronics and Comunication Engineering Chaitanya Bharathi Institute of Technology Gandipet, Hyderabad, India ABSTRACT A combination of Multiple-Input Multiple-Output Spatial Division Multiplexing technology and Orthogonal Frequency Division Multiplexing technique, namely MIMO-OFDM systems, been well-known as a potential technology to provide high speed data transmission and spectrum efficiency to attain throughput of 1 Gbit/sec and beyond improves link reliability for modern wireless communications. The rising development of Internet related contents and demand of multimedia services leads to increasing curiosity to high speed communications. It has been shown that by using MIMO system, it is possible to increase that capacity considerably. To use advantage of MIMO diversity to overcome the fading then we need to send the same signals through the different MIMO antennas and at the receiver end the different antennas will receive the same signals travelled through diverse paths. Efficient implementation of MIMO OFDM system is based on the FFT algorithm and MIMO encoding like Alamouti Space Time Block coding (STBC). In this paper, MIMO-OFDM based on Almouti Space Time Block Codes is described and the BER performance of this system is observed for various antenna configurations .The channel capacity per unit bandwidth is evaluated as a function of SNR and the MIMO channel capacity for different transmit and receive antennas is observed. Finally, Peak to Average Power Ratio (PAPR) is reduced using clipping technique and the BER performance of the ASTBC system with clipping and without clipping is observed. Key words : MIMO, OFDM, STBC and PAPR Cite this Article: Koiloth S R S Jyothsna and Tummala Aravinda Babu. Performance Analysis of Clipped STBC Coded MIMO OFDM System. International Journal of Electronics and Communication Engineering & Technology, 7(1), 2016, pp. 28-44. http://www.iaeme.com/IJECET/issues.asp?JType=IJECET&VType=7&IType=1