Bit error rate improvement for QPSK modulation technique in a MIMO rayleigh fading channel by maximum likelihood equalization

Multiple Input Multiple Output (MIMO) systems have recently emerged as one of the most promising technology in wireless communication systems that give tremendous advancement in achieving high data rates and improved system performance. In this paper, we discussed about the receiver structure called...

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Bibliographic Details
Published in2012 7th International Conference on Electrical and Computer Engineering pp. 169 - 173
Main Authors Sarkar, S., Rahman, M. S.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2012
Subjects
BER
Bit error rate
Maximum likelihood detection
MIMO
ML equalization
MRC
Phase shift keying
QPSK
Rayleigh fading channel
Receiving antennas
Wireless communication
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ISBN146731434X
9781467314343
DOI10.1109/ICECE.2012.6471512

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Summary:Multiple Input Multiple Output (MIMO) systems have recently emerged as one of the most promising technology in wireless communication systems that give tremendous advancement in achieving high data rates and improved system performance. In this paper, we discussed about the receiver structure called Maximum Likelihood (ML) Equalization and simulated this structure in a Rayleigh fading channel with QPSK modulation. Depending on bit error rates, we compared the performances of MIMO system for different combinations of transmit-receive structure. Simulation results showed that the BER can be improved by ML receiver for 2×4 MIMO Rayleigh fading channel than other lower order combinations.
ISBN:146731434X
9781467314343
DOI:10.1109/ICECE.2012.6471512