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The traditional Linear Minimum Mean Square Error (LMMSE) channel estimation technique costs O(N3) floating operations and O(N2) memory locations where N represents the channel autocorrelation matrix order. In this paper, we propose to study a fast LMMSE channel estimation technique for LTE Downlink systems based on a fast solver for linear system with displacement structure which is based on the application...
LTE is defined as the 4G generation network providing high data rates. Channel estimation is important in the wireless system conception. Classical LMMSE channel estimation techniques require 0(JV3) floating operations and 0(JV2) memory locations (N is the size of the channel autocorrelation). In this paper, we propose fast channel estimation techniques for LTE based on fast solver for linear Toeplitz...
In this paper, we propose a channel estimation algorithm robust to the channel length effect with an adaptive cyclic prefix technique for LTE Downlink systems. As LTE Downlink system is based on a MIMO-OFDMA technology, a Cyclic Prefix (CP) is inserted at the beginning of each transmitted OFDM in order to mitigate both inter-carrier interference (ICI) and inter-symbol interference (ISI) caused by...
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