期刊名称：International Journal of Computer Science, Engineering and Applications (IJCSEA)
印刷版ISSN：2231-0088
电子版ISSN：2230-9616
出版年度：2017
卷号：7
期号：1
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Viterbi Algorithm Decoder Enhanced with Non-transmittable Codewords is one of the best decodingalgorithm which effectively improves forward error correction performance. HoweverViterbi decoderenhanced with NTCs is not yet designed to work in storage media devices. Currently Reed Solomon (RS)Algorithm is almost the dominant algorithm used in correcting error in storage media. Conversely, recentstudies show that there still exist low reliability of data in storage media while the demand for storagemedia increases drastically. This study proposes a design of the Soft Viterbi Algorithm decoder enhancedwith Non-transmittable Codewords (SVAD-NTCs) to be used in storage media for error correction. Matlabsimulation was used in this design in order to investigate behavior and effectiveness of SVAD-NTCs incorrecting errors in data retrieving from storage media.Sample data of one million bits are randomlygenerated, Additive White Gaussian Noise (AWGN) was used as data distortion model and Binary PhaseShiftKeying (BPSK) was applied for simulation modulation. Results show that,behaviors of SVAD-NTCperformance increase as you increase the NTCs, but beyond 6NTCs there is no significant change andSVAD-NTCs design drastically reduce the total residual error from 216,878 of Reed Solomon to 23,900.
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