Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Performance Analysis of 2*4 MIMO-MC-CDMA in Rayleigh Fading Channel
  Using ZF-Decoder   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 half 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.

37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex