Title :
MIMO doubly-iterative receivers: pre- vs. post-cancellation filtering
Author :
Biglieri, Ezio ; Nordio, Alessandro ; Taricco, Giorgio
Author_Institution :
Politecnico di Torino, Italy
Abstract :
We describe and analyze two receivers for turbo space-time codes. These are doubly-iterative, and include iterations for turbo decoding as well as for spatial-interference canceling. The first receiver has a minimum-mean-square-error filter preceding the canceler, while in the second one the filter follows the canceler. The latter outperforms the former at the price of a modest complexity increase.
Keywords :
antenna arrays; filtering theory; interference suppression; iterative decoding; least mean squares methods; radio receivers; space-time codes; turbo codes; MIMO system; doubly-iterative receiver; minimum-mean-square-error filter; post-cancellation filtering; precancellation filtering; spatial-interference canceling; turbo space-time code; Constellation diagram; Filtering; Filters; Interference cancellation; Iterative decoding; MIMO; Mean square error methods; Multiuser detection; Receiving antennas; Space time codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2005.02032
