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BER Performance Analysis of M-QAM OFDM over a Multipath Rayleigh Channel with AWGN

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2016

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
OFDM largely used in modern digital communication system to achieve high data rate transmission and bandwidth efficiency, is also very effective in dealing with multipath Rayleigh fading. High data rate translates into low bit error rate and this is always the goal of every communication engineer. In this paper, the bit error rate performance analysis of OFDM on M-QAM modulation over a multipath Rayleigh Channel has been achieved. The model design and simulation was done using Simulink. The results obtained showed that for lower values of Eb/No between 5 - 15db, the BER decreases as the M-ary number increases for the same Eb/No value. However for Eb/No greater than 15db, it was observed that the BER increases as the M-ary number increases for the same Eb/No value.
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  • English

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