TY - GEN
T1 - Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers
AU - Kim, Jihyung
AU - Kwon, Dong Seung
AU - Nam, Sangho
AU - Hong, Daesik
PY - 2007
Y1 - 2007
N2 - This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.
AB - This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.
UR - http://www.scopus.com/inward/record.url?scp=47649091858&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=47649091858&partnerID=8YFLogxK
U2 - 10.1109/VETECF.2007.236
DO - 10.1109/VETECF.2007.236
M3 - Conference contribution
AN - SCOPUS:47649091858
SN - 1424402646
SN - 9781424402649
T3 - IEEE Vehicular Technology Conference
SP - 1092
EP - 1096
BT - 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
T2 - 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Y2 - 30 September 2007 through 3 October 2007
ER -