Comparative Study of Data Transmission Techniques of Different Block Codes over AWGN Channel using Simulink
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International Journal of Engineering Trends and Technology (IJETT) |  |
| © 2014 by IJETT Journal | ||
| Volume-9 Number-12 |
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| Year of Publication : 2014 | ||
| Authors : Jagpreet Singh , Dr. Shalini Bahel |
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 10.14445/22315381/IJETT-V9P316 |
Citation
Jagpreet Singh , Dr. Shalini Bahel. "Comparative Study of Data Transmission Techniques of Different Block Codes over AWGN Channel using Simulink", International Journal of Engineering Trends and Technology (IJETT), V9(12),609-615 March 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
Abstract
Channel Coding is the process of adding redundant data bits to a digital data stream which facilitates in reduction in the BER caused by noise in the transmission channel. This paper presents a study of various block code namely Hamming code, Bose-Chaudhuri-Hocquenghem (BCH) and Low density Parity Check code (LDPC). In order to analyse a communication link with AWGN Channel, and different modulations, Matlab is used for simulation. The simulation helps in better estimating the performance of such system because they are very easy to implement as compared to analytical methods which prove to be too complicated. LDPC have gained popularity in recent year and moreover it claims the performance near Shannon limit. In this paper LDPC performs better as compared to other block codes..Moreover BCH is having better performance in comparison to Hamming code because it is an extension of hamming code and having better result with small value of Eb/No whereas Hamming code is having better performance with large value of Eb/No whereas Without coding is having the worst performance in comparison to all the method. These results are plotted using BERTOOL in communication system tool. The comparison is based on the results to understand better performance of these codes.
References
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Keywords
Channel Coding,Hamming Codes,Simulink. BCH, LDPC.