The week's pick
Random Articles
Reseach Article
Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 106 - Number 7 |
| Year of Publication: 2014 |
| Authors: Salehe I Mrutu, Anael Sam, Nerey H. Mvungi |
10.5120/18534-9744
|
Salehe I Mrutu, Anael Sam, Nerey H. Mvungi . Performance of Binary Locked Convolutional Codes with Non-Transmittable Codewords in Flat and Slow Rayleigh-Fading Channel. International Journal of Computer Applications. 106, 7 ( November 2014), 29-34. DOI=10.5120/18534-9744
Abstract
Communication over wireless media is vulnerable to distortion by noise. Therefore, the application of error control mechanism is necessary to minimize the Bit Error Rate (BER). It is proposed to use locked binary convolutional code with Non-Transmittable codewords to enhance Viterbi Algorithm decoders; as one of the forward error correction mechanisms. The proposed enhancement empowers Viterbi algorithm decoders to reduce one of its inherent limitations of residual errors due to burst errors. This paper evaluates the performance of the locked (2, 1, 2) binary convolutional code with Non-Transmittable codewords enhancement technique over flat and slow Rayleigh Fading channel using a MATLAB software simulation. Simulation result shows 80. 92 percent reduction of residual errors when 6 Non-Transmittable Codewords were applied to Viterbi Algorithm (VA) decoding. On the other hand, the technique lowers the encoder's data transmission rate from 1/2 to 1/6.
References
- Mrutu, S. I. , Sam, A. , and Mvungi, N. H. , "Trellis Analysis of Transmission Burst Errors in Viterbi Decoding " International Journal of Computer Science and Information Security (IJCSIS), vol. 12-8, pp. 46-53, 2014.
- Fleming, C. (2006, August, 13). A tutorial on convolutional coding with Viterbi decoding. Spectrum applications. Available: http://home. netcom. com/~chip. f/viterbi/tutorial. html
- Viterbi, A. , "Convolutional codes and their performance in communication systems," Communication Technology, IEEE Transactions on, vol. 19, pp. 751-772, 1971.
- Mrutu, S. I. , Sam, A. , and Mvungi, N. H. , "Forward Error Correction Convolutional Codes for RTAs' Networks: An Overview," International Journal of Computer Network and Information Security, vol. 6, pp. 19-27, 2014.
- Balakrishnan, G. , Yang, M. , Jiang, Y. , and Kim, Y. , "Performance analysis of error control codes for wireless sensor networks," in Information Technology, 2007. ITNG'07. Fourth International Conference on, 2007, pp. 876-879.
- Morelos-Zaragoza, R. H. , The Art of Error Correcting Coding, Second ed. The Atrium, Southern Gate, Chichester,West Sussex PO19 8SQ, England. : John Wiley & Sons Ltd. , 2006.
- Mrutu, S. I. , Sam, A. , and Mvungi, N. H. , "Assessment of Non Transmittable Codewords Enhancement to Viterbi Algorithm Decoding " International Journal of Communication Science and Information Security (IJCSIS), vol. 12-9, pp. 13-18, 2014.
- Sklar, B. , "Rayleigh fading channels in mobile digital communication systems. I. Characterization," Communications Magazine, IEEE, vol. 35, pp. 90-100, 1997.
- Sklar, B. , "Rayleigh Fading Channels in Mobile Digital Communication Systems Part II. : Mitigation," Communication Magazine, IEEE, vol. 35, pp. 102-109, 1997.
- Akyildiz, I. F. , Su, W. , Sankarasubramaniam, Y. , and Cayirci, E. , "Wireless sensor networks: a survey," Computer networks, vol. 38, pp. 393-422, 2002.
Index Terms
Keywords