Title :
Pilot embedding for joint channel estimation and data detection in MIMO communication systems
Author :
Zhu, Haidong ; Farhang-Boroujeny, Behrouz ; Schlegel, Christian
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Utah, Salt Lake City, UT, USA
Abstract :
A novel pilot-aided joint channel estimation and data detection method for MIMO communication systems is proposed. Unlike, conventional methods where pilots are time-multiplexed with data symbols, a pilot-embedding method where low-level pilots are transmitted concurrently with the data is used to obtain an initial estimate of the channel such that a turbo decoding process can be started. The soft information obtained from the turbo decoder is subsequently used to improve channel estimates.
Keywords :
MIMO systems; channel capacity; channel coding; channel estimation; decoding; turbo codes; MIMO communication systems; channel estimates; joint channel estimation and data detection; low-level pilots; pilot embedding; soft information; turbo decoding; Bandwidth; Channel capacity; Channel estimation; Cities and towns; Fading; Iterative decoding; MIMO; Rayleigh channels; Turbo codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2002.807434
