Performance Analysis of 2*4 MIMO-MC-CDMA in Rayleigh Fading Channel Using ZF-Decoder

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2014 by IJETT Journal
Volume-8 Number-4                          
Year of Publication : 2014
Authors :  Mr. Atul Singh Kushwah
  10.14445/22315381/IJETT-V8P237

MLA 

Mr. Atul Singh Kushwah."Performance Analysis of 2*4 MIMO-MC-CDMA in Rayleigh Fading Channel Using ZF-Decoder", International Journal of Engineering Trends and Technology(IJETT), V8(4),204-207 February 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

In this paper we analyze the performance of 2*4 MIMO-MC-CDMA system in MATLAB which highly reduces BER. In this paper we combine MIMO and MC-CDMA system to reduce bit error rate in which MC-CDMA is multi user and multiple access schemes which is used to increase the data rate of the system. MC-CDMA system is a single wideband frequency selective carrier which converts frequency selective to parallel narrowband flat fading multiple sub-carriers to enhance the performance of system. Now MC-CDMA system further improved by grouping with 2*4 MIMO system which uses ZF (Zero Forcing) decoder at the receiver to decrease BER with ½ rate convolutionally encoded Alamouti STBC block code is used as transmit diversity of MIMO through multiple transmit antenna. Importance of using MIMO-MC-CDMA using convolution code is firstly to reduce the complexity of system secondary to reduce BER and lastly to increase gain. In this paper we examine system performance in diverse modulation techniques like, 8-PSK, 16-QAM, QPSK, 32-QAM, 8-QAM and 64-QAM in Rayleigh fading channel using MATLAB.

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Keywords
OFDM, CDMA, MIMO and MIMO-MC-CDMA.