Title :
OFDM system channel estimation using time-domain training sequence for mobile reception of digital terrestrial broadcasting
Author :
Yeh, Che-Shen ; Lin, Yinyi ; Wu, Yiyan
Author_Institution :
Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
fDate :
9/1/2000 12:00:00 AM
Abstract :
A channel estimation technique using time-domain training sequence is investigated. It is demonstrated that this technique can estimate the channel status more accurately, under low C/N situations, than the conventional frequency domain technique using in-band pilots. A novel channel estimation and compensation scheme for a fast fading channel is developed for an OFDM system using time-domain training sequence. It is compared with the frequency domain pilot channel estimation scheme
Keywords :
OFDM modulation; digital radio; fading channels; land mobile radio; parameter estimation; radio broadcasting; radio reception; time-domain analysis; time-varying channels; OFDM system; VHF/UHF bands; channel compensation; digital terrestrial broadcasting; fast fading channel; frequency domain pilot channel estimation; low C/N; mobile reception; time varying channel; time-domain training sequence; Channel estimation; Digital TV; Fading; Frequency domain analysis; Frequency estimation; OFDM; Random variables; TV broadcasting; Time domain analysis; Transmitters;
Journal_Title :
Broadcasting, IEEE Transactions on
