Orthogonal Frequency Division Multiplexing & Channel Estimation
Abstract
Orthogonal Frequency Division Multiplexing is advantageous digital communication technique used in wireless applications because of high data rate transmission capability and high bandwidth efficiency. The channel estimation techniques for OFDM system based on pilot arrangement. The channel estimation based on comb type pilot arrangement and Block type pilot arrangement. LS, MMSE, Modified MMSE, LS estimator with 1D interpolation and other estimators are discussed in this survey paper. Comparison of performance of various estimators is given.
References
[2] Van de Beek, J.-J., Edfors, O. S., Sandell, M., Wilson, S. K., and Börjesson, O. P., “On channel estimation in OFDM systems,” 45th IEEE Vehicular Technology Conference, Chicago, Il., vol. 2, pp. 815-819, July 1995.
[3] J.G.Proakis, “Digital Communications”, 4th ed., New York: McGraw Hill, 2000
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