International Journal of Information Engineering and Electronic Business(IJIEEB)

ISSN: 2074-9023 (Print), ISSN: 2074-9031 (Online)

Published By: MECS Press

IJIEEB Vol.9, No.1, Jan. 2017

BER Based Performance Analysis of 2x1 Alamouti's Diversity and 4x4 MIMO Diversity with Interleaver and Encoder for BPSK, QPSK and QAM

Full Text (PDF, 973KB), PP.47-55

Views:175   Downloads:7


Jaya Dagur, Savita Sindhu

Index Terms

4x4 MIMO;BER (Bit Error Rate);encoder;Interleaver;Alamouti's diversity;QAM; QPSK;BPSK


In this paper the results are evaluated on a conventional modulation system. Here the system of communication is presented by modeling and analysis and the results so calculated are presented. The approach made in this paper is solely based on initial description which includes a combinational approach of spatial diversity well represented by OSTBC (Orthogonal Space Time Block Codes) encoder and combiner. Next the system of OSTBC encoder and combiner are put together in a MIMO(Multiple Input Multiple Output) channel using Rayleigh and Rician channel coupled with white Gaussian channel. In modeling of such systems interleavers and encoders are also used that helps to identify the performance with simple model without these techniques. In overall system the methodical approach using Multiple Input Multiple Output antenna with the modulator, encoder and interleaver is analyzed and the resultant bit error rate has been identified. The simulation platform is MATLAB and SIMULINK in which communication block sets are used. Alamouti's and 4x4 MIMO antennas are used and hence performance so evaluated is delivered. Best results are found when number of antennas increases using Interleaver and modulation or only with modulation techniques. 

Cite This Paper

Jaya Dagur, Savita Sindhu ,"BER Based Performance Analysis of 2x1 Alamouti's Diversity and 4x4 MIMO Diversity with Interleaver and Encoder for BPSK, QPSK and QAM", International Journal of Information Engineering and Electronic Business(IJIEEB), Vol.9, No.1, pp.47-55, 2017. DOI: 10.5815/ijieeb.2017.01.06


[1]W. C. Jakes, Ed., Microwave Mobile Communications. New York:Wiley, 1974 

[2]Mr. Apoorva Pandey , Mr. Rafik Ahmad, Mr. Devesh Pratap Singh" Comparison of Wireless MIMO System Under Alamouti's Scheme and Maximum Ratio Combining Technique" I.J. Image, Graphics and Signal Processing, 2013, 2, 31-37 Published Online February 2013 in MECS (

[3]Anjali Kafaltiya, P S Sharma" Performance Improvement in MIMO-OFDM using BCH Coding and Interleaving" International Journal of Computer Applications (0975 – 8887) Volume 97– No.2, July 2014

[4]Safina Dhanda, Tazeem Ahmad Khan Malik Azizullah" Performance Assessment of Convolution Codes" International Journal of Engineering and Innovative Technology (IJEIT) Volume 3, Issue 12, June 2014

[5]Sakshi Gupta, Himanshu Sharma" Performance Investigation for Different Modulation Techniques in WCDMA with Multipath Fading Channels" International Journal of Advanced Research in Computer Science and Software Engineering Volume 2, Issue 7, July 2012 

[6]Morris Filippi1, Andrea F. Cattoni2, Yannick Le Moullec2, Claudio Sacchi1" SDR Implementation of a Low Complexity and Interference-resilient Space-Time Block Decoder for MIMO-OFDM Systems"

[7]S. Alamouti, "Space block coding: A simple transmitter diversity technique for wireless communications," IEEE J. Select. Areas.Commun., vol. 16, pp. 1451–1458, Oct. 1998.

[8]T. Kaiser, A. Bourdoux, (eds.) "Smart Antennas – State of the Art", EURASIP Series on Signal Processing and Communications, Hindawi: 2005.

[9]Daniel J., Costello, JR., "Error Control Coding, Fundamentals and Applications", Prentice Hall, Inc. Englewood Cliffs, New Jersey, 1983. 

[10]Rohan M. Pednekar, Dayanand B M" Design and Implementation of Convolution Encoder with Viterbi Decoder" International Journal of Emerging Technologies in Computational and Applied Sciences (IJETCAS)

[11]Vineet Sharma, Anuraj Shrivastav, Anjana Jain, Alok Panday, "BER performance of OFDM-BPSK,-QPSK,- QAM over AWGN channel using forward Error correcting code", International Journal of Engineering Research and Applications (IJERA) , Vol. 2, Issue 3, pp.1619-1624, May-Jun 2012. 

[12]Vivek K. Dwivedi, Abhinav Gupta, Richansh Kumar and G. Singh, ―Performance Analysis of Coded OFDM System Using Various Co ding Schemes‖ Progress In Electromagnetic Research Symposium Proceedings, Moscow, Russia, August 18-21, 2009

[13]Rey, M. Lamarca and G. Vazquez, "Adaptive Interleaver based on rate- compatible punctured Convolutional codes", IEEE Transactions on communications, June 2009, Vol-57, No. 6.

[14]MATLAB, "HELP, Communication, toolbox, Block Interleaving.

[15]Zhen-dong Zhang, Bin Wu, Yong-Xu Zhu, Yu-mei Zhou, "Design and implementation of a Multi-Mode Interleaver/Deinterleaver for MIMO OFDM Systems" IEEE 2009