Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30174
RRNS-Convolutional Concatenated Code for OFDM based Wireless Communication with Direct Analog-to-Residue Converter

Authors: Shahana T. K., Babita R. Jose, K. Poulose Jacob, Sreela Sasi

Abstract:

The modern telecommunication industry demands higher capacity networks with high data rate. Orthogonal frequency division multiplexing (OFDM) is a promising technique for high data rate wireless communications at reasonable complexity in wireless channels. OFDM has been adopted for many types of wireless systems like wireless local area networks such as IEEE 802.11a, and digital audio/video broadcasting (DAB/DVB). The proposed research focuses on a concatenated coding scheme that improve the performance of OFDM based wireless communications. It uses a Redundant Residue Number System (RRNS) code as the outer code and a convolutional code as the inner code. Here, a direct conversion of analog signal to residue domain is done to reduce the conversion complexity using sigma-delta based parallel analog-to-residue converter. The bit error rate (BER) performances of the proposed system under different channel conditions are investigated. These include the effect of additive white Gaussian noise (AWGN), multipath delay spread, peak power clipping and frame start synchronization error. The simulation results show that the proposed RRNS-Convolutional concatenated coding (RCCC) scheme provides significant improvement in the system performance by exploiting the inherent properties of RRNS.

Keywords: Analog-to-residue converter, Concatenated codes, OFDM, Redundant Residue Number System, Sigma-delta modulator, Wireless communication

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1333360

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1529

References:


[1] L. L. Yang and L. Hanzo, "Residue number system based multiple code DS-CDMA systems", Proc. of IEEE 49th Vehicular Technology Conference, Houston, USA,Vol.2, pp. 1450-1454, May 1999.
[2] A.S. Madhukumar and F. Chin, "Performance of a residue number system based DS-CDMA system over bursty communication channels", Proc. of IEEE Vehicular Technology Conference (VTS-Fall VTC 2000), Vol.5, pp.2433-2440, 2000.
[3] D. Divsalar and F. Pollara, "Serial and hybrid concatenated codes with applications", Proc. of International Symp. on Turbo Codes, Brest, France, pp. 80-88, 1997
[4] E. Lawrey, "The suitability of OFDM as a modulation technique for wireless telecommunications, with a CDMA comparison", BE Thesis, James Cook University, October 1997.
[5] C.S. Tsai and B.C. Huang, "Concatenated codes design for OFDM based wireless local area networks", Third international working conference on Performance Modelling and Evaluation of Heterogeneous Networks (HET-NETs), West Yorkshire, U.K, July 2005.
[6] B. Tarokh and H.R. Sadjadpour, "Construction of OFDM M-QAM sequences with low peak-to-average power ratio", IEEE Trans. on Communications, Vol.51, No.1, pp. 25-28, January 2003.
[7] D.H. Guo and C.Y. Hsu, "The economical PAPR minization scheme for combinative coding technique applied OFDM communication system", Analog Integrated Circuits and Signal Processing, vol.46, pp.139-144, February 2006.
[8] S. U. Tezeren, "Reed-Muller codes in error detection in wireless adhoc networks", M.S. Thesis, Naval Postgraduate School, March 2004.
[9] A.S.Madhukumar and F.Chin, "Residue number system-based multicarrier CDMA for high-speed broadband wireless access", IEEE Transactions on Broadcasting, Vol. 48, No. 1, March 2002, pp. 46-52.
[10] L. L. Yang and L. Hanzo, "A residue number system based parallel communication scheme using orthogonal signaling: Part I- System outline", IEEE Trans. on Vehicular Technology, vol.51, No.6, pp.1534- 1546, November 2002.
[11] L. L. Yang and L. Hanzo, "A residue number system based parallel communication scheme using orthogonal signaling: Part II- Multipath fading channels", IEEE Trans. on Vehicular Technology, vol.51, No.6, pp.1547-1559, November 2002.
[12] S.Mandyam and T.Stouraitis, "Efficient analog-to-residue conversion schemes", Proc. IEEE International Symposium on Circuits and Systems, New Orleans, LA, May 1990, pp. 2885-2888.
[13] D. Radhakrishnan and A.P. Preethy, "A parallel approach to direct analog-to-residue conversion", Information Processing Letters, Vol. 69, No. 5, March 1999, pp. 249-252.
[14] D. Radhakrishnan and A.P. Preethy, "A direct analog-to-residue converter", IEEE Region10 International Conference on Global Connectivity in Energy, Computer, Communication and Control (TENCON1998), Vol.2, 1998, pp.336-339.
[15] M.A. Soderstrand, W.K. Jenkins, G.A. Jullien, and F.J. Taylor, Residue number system arithmetic: modern applications in digital signal processing, IEEE Press, New York, 1986.
[16] R.J. Cosentino, "Fault tolerance in a systolic residue arithmetic processor array", IEEE Trans. on Computers, Vol. 37, No. 7, pp. 886- 890, July 1988.
[17] A.P. Preethy, D. Radhakrishnan and A. Omondi, "Fault-tolerance scheme for an RNS MAC: performance and cost analysis", Proc. of IEEE International Symposium on Circuits and Systems (ISCAS 2001), Sydney, Australia, Vol. 2, pp. 717-720, May 2001.
[18] Peter Sweeney, Error control coding: from theory to practice, John Wiley & Sons Ltd., Baffins Lane, Chichester, West Sussex PO19 1UD, England, 2002.
[19] S.R.Norsworthy, R.Schreier and G.C.Temes, Delta-Sigma Data Converters, Theory, Design, and Simulation, Piscataway, NJ: IEEE Press, 1997.
[20] Shahana T.K., Babita R. Jose, K. Poulose Jacob and Sreela Sasi, "A Novel Sigma-Delta based Parallel Analog-to-Residue Converter", Paper Communicated and under revision with International Journal of Electronics, Taylor and Francis Ltd.