A Robust Multi Carrier Frequency Domain Equalization With Proper Channel Estimation
Keywords:
OFDM, NLMS, BER, Robust, EqualizationAbstract
This work deals with the channel estimation and channel equalization for OFDM system. In present scenario every communication system demands high data rate wireless access and larger bandwidth is. This is a challenging task to develop such wireless communication system. The major challenge in the OFDM system is to achieve better channel estimation and channel equalization with lower values of BER (Bit Error Rate) and MSE (Mean Square Error). In this work a low complexity modified iterative linear minimum mean square error (MI -LMMSE) channel estimation algorithm with modified iterative NLMS (MI-NLMS) channel equalization algorithm integrated with CC-OFDM system is proposed.
References
[1] Anil Kumar Pattanayak: “Channel Estimation In Ofdm Systems” NIT Rourkela thesis 2007.
[2] Charles U. Ndujiuba et.al : “Dynamic Differential Modulation of Sub-Carriers in OFDM” Journal of Wireless Networking and Communications 2016, 6(1): 21-28.
[3] Pallavi Suryawanshi et.al : “Underwater communication by using OFDM system” International Journal of Scientific and Research Publications, Volume 3, Issue 12, December 2013.
[4] Alessandro Tomasoni, Member et.al: “Efficient OFDM Channel Estimation via an Information Criterion” IEEE transactions on wireless communications, vol. 12, no. 3, march 2013.
[5] Hardeep Kaur et.al : “ Analyzing the Performance of Coded OFDM based WiMax System with different Fading Conditions” International Journal of Advanced Science and Technology Vol.68 (2014), pp.01-10.
[6] Sanjana T et.al : “Comparison Of Channel Estimation And Equalization Techniques For Ofdm Systems” Circuits and Systems: An International Journal (CSIJ), Vol. 1, No. 1, January 2014.
[7] Sunho Park : “”Iterative Channel Estimation Using Virtual Pilot Signals for MIMO-OFDM Systems” IEEE transactions on signal processing, vol. 63, no. 12, june 15, 2015.
[8] Petros S. Bithas et.al : “An Improved Threshold-Based Channel Selection Scheme for Wireless Communication Systems” IEEE transactions on wireless communications, vol. 15, no. 2, february 2016.
[9] Dimitrios Katselis et.al: “Preamble-Based Channel Estimation for CP-OFDM and OFDM/OQAM Systems: A Comparative Study” IEEE transactions on signal processing, vol. 58, no. 5, may 2010.
[10] Yuan Ouyang et.al : “Performance Analysis of the Multiband Orthogonal Frequency Division Multiplexing Ultra-Wideband Systems for Multipath Fading and Multiuser Interference Channels” Hindawi Publishing Corporation Mathematical Problems in Engineering Volume 2015, Article ID 190809, 9 pages.
[11] Leonardo Rey Vega et.al: “A New Robust Variable Step-Size NLMS Algorithm” IEEE transactions on signal processing, vol. 56, no. 5, may 2008.
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