Title :
EKF-based channel estimation and anti-jam algorithms for OSTBCs
Author :
Chiou-Wei Tsai ; Cagley, Richard E. ; Iltis, Ronald A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
We present an adaptive receiver design for orthogonal space-time block codes (OSTBCs) with joint channel estimation and jammer suppression. Using an autoregressive (AR) model for the jammer, the channel coefficients and AR parameters are jointly estimated by the extended Kalman filter (EKF). A decision-feedback equalizer (DFE) decoder is then employed for OSTBCs that takes inter-symbol interference due to temporal whitening into account. A sub-optimum linear detector is also derived for the EKF-based receiver.
Keywords :
Kalman filters; block codes; channel coding; channel estimation; decision feedback equalisers; interference suppression; intersymbol interference; jamming; mobile radio; nonlinear filters; radio receivers; space-time codes; adaptive receiver design; antijam algorithms; autoregressive model; channel estimation; decision-feedback equalizer decoder; extended Kalman filter; intersymbol interference; jammer suppression; orthogonal space-time block codes; suboptimum linear detector; Block codes; Channel estimation; Covariance matrix; Decision feedback equalizers; Decoding; Detectors; Filters; Interference; Jamming; Parameter estimation;
Conference_Titel :
Radio and Wireless Symposium, 2006 IEEE
Print_ISBN :
0-7803-9412-7
DOI :
10.1109/RWS.2006.1615098
