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Performance Analysis of Turbo Coded OFDM Broadband Transmission over Channel with Noise

Dr. K. Ashok babu, Thota Sravanti

Abstract


Error control codes have become a vital part of modern digital wireless systems, enabling reliable transmission to be achieved over noisy channels. Over the past decade, turbo codes have been widely considered to be the most powerful error control code of practical importance. In the same time scale, mixed voice/data networks have advanced further and the concept of global wireless networks and terrestrial links has emerged. Such networks present the challenge of optimizing error control codes for different channel types, and for the different qualities of service demanded by voice and data. OFDM has become a popular modulation method in high speed wireless communications. Bypartitioning a wideband fading channel into flat fading narrowband channel, OFDM is used to mitigate the detrimental effects of multi path fading using a simple one-tap equalizer. There is a growing need to quickly transmit information wirelessly and accurately. The end goal is to increase the system throughput while maintaining system performance under a desired bit error rate (BER).


Keywords


Orthogonal Frequency Division Multiplexing (OFDM), Impulsive Noise, Turbo Codes, Bit Error Rate (BER).

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References


O.G.Hooijen, “A channel model for the residential power circuit usedas as a digital communications medium,” IEEE Trans. Electromagn.Compat. vol. 40, no. 4, pp. 331–336, Nov. 1998

M.Zimmermann and K. Dostert, “Analysis and modeling of impulsive noise in broad-band powerline communications,” IEEE Trans.Electromagn. Compat. vol. 44, no. 1, pp. 249–258, Feb. 2002.

RamjeePrasad, “OFDM for Wireless Communications systems”, Artech House Publishers, 2004.

Anibal Luis Intini, “orthogonal Frequency Division Multiplexing For Wireless Networks” Standard IEEE 802.11a, University Of California,Santa Barbara

K. Taura and H. Kato, “A Digital Audio Broadcasting (DAB) Receiver,”IEEE Trans. On Consumer Elec., vol. 42, Aug. 1996.

S. O’Leary and D. Priestly, “Mobile broadcasting of DVB-T signals,”IEEE Transactions on Broadcasting, vol. 44, pp. 346–352,September 1998.

M. H. L. Chan and R. W. Donaldson, “Amplitude, width, and interarrival distribution for noise impulses on intrabuilding power line communication networks,” IEEE Trans. Electromagn. Compat., vol. 31,no. 3, pp. 320–323, Aug. 1989.

John G. Proakis, Masoud Salehi, “Communication system using MATLAB” Thomson Asia Pvt. Ltd., Singapore, 2003

C. Berrou, A. Glavieux, and P. Thitimajshima, “Near Shannon Limit Error-Correcting Coding: Turbo Codes”, Proceedings of the IEEE International Conference on Communications, ICC ’93, Geneva., pp. 1064–1070, May 1993.

Andersen JD and Zyablov VV, “Interleaver Design for Turbo Coding”, Proceedings of the International Symposium on Turbo Codes,September 1997.

Bahl LR, Cocke J, jelinek F & Rajiv J.. “Optimal Decoding of Linear Codes for Minimising Symbol Error Rate”. IEEE Transactions on Information Theory, March 1974.

Berrou C, Adde P, Angui E & Faudeil S. “A Low Complexity, Soft Output, Viterbi Decoder Architecture”. Proceedings IEEE. International Conference on Communications. May 1993

Pouyan Amirshahi, S. Mohammad Navidpour, and Mohsen Kavehrad,“Performance Analysis of Uncoded and Coded OFDM Broadband Transmission Over Low Voltage PowerLine Channels With Impulsive Noise” IEEE Transactions on Power Delivery, VOL. 21, NO. 4, October2006.


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