Title :
An unbiased scattering function estimator for fast time-varying channels
Author :
Artés, Harold ; Matz, Gerald ; Hlawatsch, Franz
Author_Institution :
Inst. of Commun. & Radio Frequency Eng., Wien Univ., Austria
Abstract :
We propose an unbiased, computationally efficient estimator of the scattering function that is specifically suited to underspread WSSUS channels. The novel estimator allows for nonideal sounding signals, fast time-variation, and on-line operation during data transmission. Its good performance is assessed by a bias/variance analysis and simulation results
Keywords :
UHF radio propagation; electromagnetic wave scattering; land mobile radio; parameter estimation; random processes; signal processing; statistical analysis; time-varying channels; UHF; averaged periodogram estimator; bias/variance analysis; computationally efficient estimator; data transmission; digital block processing algorithm; fast time-variation; fast time-varying channels; linear channels; mobile communication channels; nonideal sounding signals; on-line operation; performance; random channels; second-order statistics; simulation results; unbiased scattering function estimator; underspread WSSUS channels; Acoustic scattering; Art; Bandwidth; Data communication; Delay effects; Delay estimation; Fourier transforms; Performance analysis; Radio frequency; Time-varying channels;
Conference_Titel :
Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on
Conference_Location :
Annapolis, MD
Print_ISBN :
0-7803-5599-7
DOI :
10.1109/SPAWC.1999.783105
