Title :
Optimal design and placement of pilot symbols for channel estimation
Author :
Dong, Min ; Tong, Lang
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
The problem of design and placing pilot symbols for the estimation of frequency selective random channels is considered. For both SISO and MIMO channels, the Cramer-Rao bound (CRB) on the mean square error of channel estimators is derived and minimized with respect to the pilot symbols and their placement. It is shown that placing pilot symbols, possibly in multiple clusters, in the middle of the data packet leads to minimum CRB
Keywords :
data communication; mean square error methods; minimisation; packet switching; parameter estimation; telecommunication channels; Cramer-Rao bound; MIMO channels; SISO channels; channel estimation; data packet; frequency selective random channels; mean square error; minimum CRB; multiple clusters; optimal design; pilot symbol placement; Channel capacity; Channel estimation; Decision feedback equalizers; Finite impulse response filter; Frequency estimation; Frequency synchronization; GSM; MIMO; Mean square error methods; Partial transmit sequences;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2001. Proceedings. (ICASSP '01). 2001 IEEE International Conference on
Conference_Location :
Salt Lake City, UT
Print_ISBN :
0-7803-7041-4
DOI :
10.1109/ICASSP.2001.940409
