Title :
Design of the optimum pilot pattern for channel estimation in OFDM systems
Author :
JI-Woong Cho ; Lee, Yong-Hwan
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
fDate :
29 Nov.-3 Dec. 2004
Abstract :
The performance of channel estimation in OFDM systems significantly depends on the pilot signal, which is usually scattered in the time and frequency domains. For a given pilot density, we analytically design the optimum pilot pattern that minimizes the mean square error of the channel estimate obtained with the use of general interpolators. The analytic results are verified by computer simulation.
Keywords :
OFDM modulation; channel estimation; interpolation; mean square error methods; optimisation; signal detection; MSE minimization; OFDM systems; channel estimate mean square error; channel estimation; channel impulse response; coherent detection; diamond shaped pilot pattern; interpolators; pilot pattern optimization; pilot signal density; Channel estimation; Computer simulation; Frequency domain analysis; Interpolation; Mean square error methods; OFDM; Pattern analysis; Scattering; Shape; Signal design;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1379052
