Performance Analysis of Turbo Coded OFDM System

作者: Deependra Pandey , Jyoti Chand

DOI:

关键词:

摘要: Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method in high speed wireless communication system. By partitioning wideband fading channel into flat narrowband channels, OFDM is able to mitigate the detrimental effects of multipath using simple one- tap equalizer. There growing need quickly transmit information wirelessly and accurately. Engineers have already combine techniques such as suitable for data rate transmission with forward error correction (FEC) methods over channels. In this thesis, we enhance system throughput working by adding turbo codes. The smart use coding power allocation will be useful desired performance at higher rates. Simulation done Rayleigh additive white Gaussian noise (AWGN) Here also compare two different generator polynomials. This project increases same time maintaining performance. improved convolution [1].

参考文章(9)
Sami Ahmed Haider, Khalida Noori, ADAPTIVE TURBO CODED OFDM Journal of Digital Information Management. ,vol. 5, pp. 364- 367 ,(2007)
L. R. Bahl, Optimal decoding of linear codes for minimizing symbol error rate IEEE Transactions on Information Theory. ,vol. 20, pp. 284- 287 ,(1974)
AG Burr, GP White, Performance of turbo-coded OFDM IEE Colloquium. Turbo Codes in Digital Broadcasting - Could it Double Capacity?. pp. 8- 8 ,(1999) , 10.1049/IC:19990788
T.A. Summers, S.G. Wilson, SNR mismatch and online estimation in turbo decoding IEEE Transactions on Communications. ,vol. 46, pp. 421- 423 ,(1998) , 10.1109/26.664291
C. Berrou, A. Glavieux, P. Thitimajshima, Near Shannon limit error-correcting coding and decoding: Turbo-codes. 1 international conference on communications. ,vol. 2, pp. 1064- 1070 ,(1993) , 10.1109/ICC.1993.397441
G.D. Forney, The viterbi algorithm Proceedings of the IEEE. ,vol. 61, pp. 268- 278 ,(1973) , 10.1109/PROC.1973.9030
L. Hanzo, M. Münster, B.J. Choi, T. Keller, OFDM and MC-CDMA for Broadband Multi-User Communications, WLANs and Broadcasting: Hanzo/OFDM John Wiley & Sons, Ltd. ,(2003) , 10.1002/9780470861813