Pilot Interpolation Based Channel Estimation for LTE Systems

In this paper, we present a framework for channel estimation in long term evolution (LTE) system. Pilot symbols are spread over the entire time-frequency grid of transmit super frame with consideration of delay-doppler spread of the transmitting medium. At the receiver, we use various interpolation...

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Bibliographic Details
Published in:Procedia computer science 2020, Vol.171, p.2261-2266
Main Authors: Makkar, Rahul, Soni, Sandhya, Bachkaniwala, Akhil Kalpesh, Rawal, Divyang, Sharma, Nikhil
Format: Article
Language:English
Subjects:
channel estimation
interpolation
LTE
MIMO
Pilot
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Summary:In this paper, we present a framework for channel estimation in long term evolution (LTE) system. Pilot symbols are spread over the entire time-frequency grid of transmit super frame with consideration of delay-doppler spread of the transmitting medium. At the receiver, we use various interpolation techniques like linear, piece-wise cubic and spline to estimate the channel at non-pilot locations for different antenna configurations. Estimation error is measured using mean squared error (MSE) between the ideal channel and estimated channel for different interpolation techniques. Simulation result shows the channel estimation MSE for single as well as for multiple-input multiple-output (MIMO) link as a function of signal-to-noise ratio.
ISSN:1877-0509
1877-0509
DOI:10.1016/j.procs.2020.04.244