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Throughput Analysis of RCPT Coded HARQ for OFDM System

Dipali P. Dhamole, Achala M. Deshmukh

Abstract


Today OFDM is considered as one of the strong candidate for mobile radio communication due to the availability of high speed data rates and robustness against the multipath channel. For reliable communication in such wireless communication system, the rate compatible punctured turbo coded hybrid automatic repeat request (RCPT HARQ) is used. In case of wireless transmission throughput is an important performance measure for data communication In this paper, we evaluate by computer simulations the throughput performance of RCPT coded HARQ for OFDM system which is compared for two types of error controlling g techniques i.e., Type I and Type II HARQ. The throughput of both error controlling schemes is compared for different modulation levels (BPSK, QPSK and 16QAM) and in different channel conditions (AWGN, Rayleigh and Rician). It is found that the throughput of Type II HARQ is higher than that of Type I HARQ. The puncturing period used in this work is 2.

Keywords


Wireless Communication, RCPT, HARQ, OFDM

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References


R. Prasad, “OFDM for wireless communications systems” Ist Ed. Artech House, Inc. Boston London, 2004.

D.N. Rowitch and L.B. Milstein, “On the Performance of Hybrid FEC/ARQ Systems Using Rate Compatible Punctured Turbo (RCPT) Codes” IEEE Transactions on Communication, Vol. 48, No.6, 2000.

B. Sklar and P.K. Ray, “Digital communications: Fundamentals and applications”. 2nd ed. Pearson Publications, New Delhi, 2008.

M.W. Bahri, H. Boujemaa, and M. Siala, “Performance comparison of Type I, II and III Hybrid ARQ schemes over AWGN channels.” IEEE International Conference on Industrial Technology, pp. 1417-1421, 2004.

D. Garg and F. Adachi, “Rate compatible punctured turbo-coded hybrid ARQ for OFDM in a frequency selective fading channel.” IEEE, pp. 2725-2729, 2008.

H. Gacanin and F. Adachi, “Throughput of Type II HARQ-OFDM/TDM using MMSE-FDE in a multipath channel.” Research Letters in Communications, pp.1-4, 2009

D. Garg, R. Kimura, and F. Adachi, “Effect of limited number of retransmissions of RCPT hybrid ARQ for DS-CDMA mobile radio.” IEEE, pp. 971-975., 2002.

S. Lin.and D. J. Costello, Error Control Coding Fundamentals and Applications, Prentice-Hall, Upper Saddle River, NJ, USA, 1983.

C. Berrou, “Near optimum error correcting coding and decoding: turbo codes.” IEEE Transactions on Communications, Vol. 44, No. 10, pp.1261-1271, 1996.

S. Rekh, S.S. Rani, A. Shanmugam, and J.K. Joshua, “Punctured Turbo Codes for Bandwidth-efficient Transmission” Defence Science Journal, Vol. 56, No. 4, pp. 585-590, 2006.

C. Berrou, A. Glavieux, and P. Thitimajshima, “Near Shannon limit error-correcting coding and decoding - Turbo codes”, Proc. Int. Conf. Communications, pp. 1064-1070, May 1993

J. Hagenauer, “ Rate-compatible punctured convolutional codes (RCPC codes) and their application”, IEEE Trans. Comm., Vol. 36, pp. 389-400, April 1988.

J. Hagenauer, P. Robertson, and L. Papke, “Iterative (“TURBO”) decoding of convolutional codes with the MAP and SOVA algorithms ,” in proc. ITG’94, 1994.


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