Title :
Optimal training sequences and pilot tones for OFDM systems
Author :
Manton, Jonathan H.
Author_Institution :
Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia
fDate :
4/1/2001 12:00:00 AM
Abstract :
Orthogonal frequency-division multiplex (OFDM) systems transmit data in blocks. The two simplest ways of identifying the channel in OFDM systems are to insert a training sequence between consecutive blocks or to insert pilot tones inside each block. This article proves that both methods can achieve the same level of performance under certain conditions on the block length.
Keywords :
OFDM modulation; identification; optimisation; sequences; telecommunication channels; OFDM systems; block length; channel identification; data transmission; optimal pilot tones; optimal training sequences; orthogonal frequency-division multiplexing; performance; Additive white noise; Australia Council; Channel estimation; Equations; Frequency division multiplexing; Frequency domain analysis; Frequency estimation; Maximum likelihood estimation; OFDM; Sufficient conditions;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.917097
