Date of Publication :7th May 2016
Abstract: This paper presents different channel estimation techniques in MIMO-OFDM. The combination of MIMO with OFDM increases the bit rate as well as capacity. This is a survey on channel estimation. A main challenge in MIMO-OFDM system is retrieval of channel state information (CSI) accurately and the synchronization between the transmitter and receiver. The CSI is retrieved with the help of different types of estimation algorithms such as training based, blind and semi blind channel estimation. This paper focuses the basic introduction of OFDM, MIMO-OFDM system and explain different channel estimation algorithms, optimization techniques and their utilization in MIMO systems for 4G wireless mobile communication systems.
Reference :
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[1] R.S.Ganesh, Dr. J.JayaKumari “A Survey on Channel Estimation Techniquesin MIMO-OFDM Mobile Communication Systems” International Journal of Scientific & Engineering Research, Volume 4, Issue 5, May-2013
[2] B Shoba and Dr.K Jayanthi “Performance Improvement of MIMO OFDM Systems Through Channel Estimation” , International Journal of Wireless & Mobile Networks (IJWMN) Vol. 4, No. 5, October 2012
[3] Mrs. VEENA M.B.& Dr.M.N.SHANMUKHA SWAMY “Implementation of Channel Estimation and Modulation Technique for MIMO System” , International Journal of Wireless & Mobile Networks(IJWMN) Vol. 3, No. 2, April 2011
[4] Sivash M. Alamouti “ A Simple Transmit Diversity Technique for Wireless Communications ”in IEEE journal on Select Areas in Communications,Vol.16. No.8, Oct.1998 pp. 1451-1458
[5] Nima sarmadi,Shahram Shahbazpanahi,Alex B.gershman “Blind channel Estimation in Orthogononally coded MIMO-OFDM Systems: A Semi definite Relaxation Approach” IEEE Transcation on Signal Processing,vol.57,No.6,June 2009,pp.2354-2364
[6] Kala Praveen Bagadi,Susmita Das,”MIMO-OFDM Channel Estimation Using Pilot Carriers”in International Journal of Computer applications, Vol.2,No.3,May2010,pp.81-86
[7] S. Weinstein and P. Ebert, “Data Transmission by Frequency Division Multiplexing using the Discrete Fourier Transform,” IEEE Trans. Commun. Tech,vol. COM-19, pp. 628–634, October 1971.
[8] MEng-Han Hieh and Che-Ho Wei, “Channel Estimation for OFDM Systems based on COMBType Pilot arrangement in frequency selective fading channels,” IEEE Trans. on Commun.,1998
[9] Wang Zhe, Bai Fan and Jiang Zhanjun“A Simplified Training Pattern for MIMO-OFDM Channel Estimation Technology” IEEE International Conference on Computer Application and System Modeling,vol.5,pp 385-388,2010.
[10] C Shin, W Robert Jr, EJ Powers,‘‘Blind Channel Estimation for MIMOOFDM Systems,’’ in IEEE Transactions on Vehicular Technology, vol.56, pp.670- 685, 2007.
[11] Y.G.Li, N.Seshadri, and S.Ariyavisitkaul, “Channel estimation For OFDM systems with transmitter diversity in mobile wireless channels,”IEEE J.Select. Areas Commun., vol. 17, pp. 461-471, Mar.1999