Title :
Performance analysis of pilot pattern design for channel estimation in LTE downlink
Author :
Bouchibane, F. Zohra ; Ghanem, K. ; Bensebti, M.
Author_Institution :
Centre for Dev. of Adv. Technol., Algiers, Algeria
Abstract :
An efficient pilot pattern design can improve both the spectral efficiency and the reliability of an orthogonal frequency division multiplexing (OFDM) system. Usually, the pilot structure in LTE system is predetermined regardless of the channel variation. In this paper the problem of pilot pattern design is tackled. The pilot symbols spacing that gives the best performance in terms of BER is established as the optimum pilot pattern. The performance of the proposed design is confirmed through simulation and compared to the LTE standard pilot spacing where it is shown that pilot spacing adjustment is not efficient in slow fading channel.
Keywords :
Long Term Evolution; OFDM modulation; channel estimation; error statistics; fading channels; telecommunication network reliability; BER; LTE downlink; OFDM system; channel estimation; performance analysis; pilot pattern design; pilot symbols spacing; reliability; slow fading channel; spectral efficiency; Bit error rate; Channel estimation; Downlink; Fading; OFDM; Standards; Wireless communication;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904536