A REVIEW OF NOVEL APPROACH FOR REDUCTION IN SUB CARRIER PEAK TO AVERAGE POWER RATIO IN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING
Keywords:OFDM (Orthogonal Frequency Division Multiplexing), PTS (Partial Transmit Sequences), ADSL (Asynchronous Digital Subscriber Line), BASK (Binary Amplitude Shift Keying), IFFT (Inverse Fast Fourier Transform), BFSK (Binary Frequency Shift Keying)
In last few decades the demand for multimedia data services has grown up fastly. One of the most promising multicarrier system, Orthogonal Frequency Division Multiplexing (OFDM) allow large number of capacity the number of subcarriers, high data rates and ubiquitous coverage with high mobility. But OFDM is extensively affected by peak to average power ratio (PAPR). Unfortunately, the high PAPR inherent to OFDM signal envelopes will frequently drive high power amplifiers (HPAs) which are operate in the nonlinear region. The nonlinearity of the High Power Amplifier exhibits phase and amplitude distortions, which causes loss of orthogonality between the subcarriers; also (ICI) is introduced in the source signal. This dissertation is basically focused on PAPR reduction in OFDM system and measuring BER in different Modulation Technique. In PAPR reduction Signal companding methods have low complication, high distortion and spectral properties; however, we have limited PAPR reduction capabilities. Partial transmit sequences (PTS) and selected mapping (SLM), have also been considered for PAPR reduction. Such kind of techniques are very efficient and distortion less, Also the SLM is very good technique to the PAPR problem in single carrier system. This method has low complexity as well as it is data independent.
In this paper, we are describing a combine technique of SLM and PTS to minimize the PAPR. In PTS scheme, number of sub blocks increases; the IFFT block to be performed for sub blocks also increases. Simulation results have shown that the reductions of PAPR of proposed scheme is more than PTS and SLM methods as well as the difficulty reduced considerably.
Vipin Kumar, Dr.Praveen, Anupama “Performance Analysis of MIMO OFDM system using BPSK & QPSK modulation techniques under Rayleigh Fading Channel” IJARCET 2016.
Arun Agarwal, Kabita Agarwal “Performance evaluation of OFDM based WiMAX (IEEE 802.16d) system under diverse channel conditions” IEEE Jan 2015. DOI: https://doi.org/10.1109/EESCO.2015.7253958
Tareq Y. Al-Naffouri ,Ahmed A. Quadeer “Impulse Noise Estimation an Removal for OFDM Systems” IEEE Transactions on communication (Volume:62 , Issue: 3 ) February 2014. DOI: https://doi.org/10.1109/TCOMM.2014.012414.130244
Parul Wadhwa, Gaurav Gupta, “BER Analysis & Comparison of Different Equalization Techniques for MIMO-OFDM System”, International Journal of Advanced Research in Computer Science and Software Engineering, (IJARCSSE), Volume 3, Issue 6, June 2013.
Vishal Anand, Sharmeele Thanagjam, Sukhjeet Kaur, “Analysis of OFDM BER and PAPR using TURBO CODE”, IJCSNS International Journal of Computer Science and Network Security, VOL.12 No.3, March 2012.
Ligata, Haris Gacanin, Fumiyuki Adachi, Miha Smolnikar, and Mihael Mohorcic, “Bit Error Rate Analysis for an OFDM System with Channel Estimation in a Nonlinear and Frequency Selective Fading Channel”, EURASIP Journal on Wireless Communications and Networking, 2011. DOI: https://doi.org/10.1155/2011/670637
Vivek K. Dwivedi and G. Singh, “An Efficient BER Analysis of OFDM Systems with ICI Conjugate Cancellation Method”, Progress In Electromagnetics Research Symposium, Cambridge, USA, July 2-6, 2008.
S. Coleri, M. Ergen, A. Puri, and A. Bahai, “Channel estimation techniques based on pilot arrangement in OFDM systems”, IEEE Transactions on Broadcasting, vol. 48, pp. 223-229, 2002. DOI: https://doi.org/10.1109/TBC.2002.804034
H. Bolckei, D. Gesbert, and A. J. Paulraj, “On the capacity of OFDM-based spatial multiplexing systems”, IEEE Transactions on Communications, vol. 50, pp. 225-234, 2002. DOI: https://doi.org/10.1109/26.983319
W. G. Jeon, K. H. Paik, and Y. S. Cho, “Two-dimensional pilot-symbol-aided channel estimation for OFDM systems with transmitter diversity”, IEICE Transactions on Communications, vol. E85B, pp. 840-844, Apr. 2002.
P. Foomooljareon and W. Fernando, “PAPR reduction in OFDM systems”, Thammasat International Journal of Science and Technology, vol. 7, no. 3, 2002.
A. D. S. Jayalath, “OFDM for Wireless Broadband Communications (Peak Power Reduction, Spectrum and Coding)”, Science and Software Engineering Melbourne: in School of Computer Monash University, pp. 257, 2002.
M. Faulkner, “OFDM: Overview”, Melbourne, 2002.
Y. Jung, Y. Tak, J. Kim, J. Park, D. Kim, and H. Park, “Efficient FFT algorithm for OFDM modulation”, Proceedings of IEEE Region 10, International Conference on Electrical and Electronic Technology, TENCON, pp. 676-678 vol. 2, 2001.
A. Sadat and W. B. Mikhael, “Fast Fourier Transform for high speed OFDM wireless multimedia system”, Proceedings of the 44th IEEE Midwest Symposium on Circuits and Systems, MWSCAS, pp. 938- 942 vol. 2, 2001.
J. Stott, “The DVB terrestial (DVB-T) specification and its implementation in a practical modem”, International Broadcasting Convention, pp. 255-260, 1996. DOI: https://doi.org/10.1049/cp:19960816
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