{ "item_title" : "Performance evaluation of channel estimation techniques for LTE downlink system", "item_author" : [" Kahsay Meresa "], "item_description" : "In this thesis channel estimation techniques for LTE downlink named Least Square, Minimum Mean Square error and Maximum Likelihood estimation techniques are studied for the pilot symbol based channel estimation. In addition to this the performances of these three channel estimation techniques were also studied by introducing averaging, interpolation and hybrid methods. This work also investigates the complexity of the channel estimation techniques in terms of the number of complex multiplications and by varying the FFT size and number of CP(cyclic prefix). furthermore, the effect of varying the number of antennas at the transmitter and receiver ends, where 2 x 2 and 4 x 4 antenna arrangements are considered as a case studies. The performance of these channel estimation techniques is also studied for EVA standard channel model in LTE. The considered channel model is EVA standard channel model with Doppler shift of 300HZ.", "item_img_path" : "https://covers3.booksamillion.com/covers/bam/1/36/558/125/136558125X_b.jpg", "price_data" : { "retail_price" : "29.78", "online_price" : "29.78", "our_price" : "29.78", "club_price" : "29.78", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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