Time-domain channel estimator based on cyclic correlation for OFDM systems with guard interval
JIA Min, GU Xue-mai, IM Se-bin, CHOI Hyung-jin
Acta Metallurgica Sinica(English letters) . 2008, (2): 26 -31 .  DOI: 1005-8885 (2008) 02-0026-06