|
1. |
Parallel interference cancellation based turbo space-time equalization in the SDMA uplink
Wolfgang, A.; Sheng Chen; Hanzo, L.;
Wireless Communications, IEEE Transactions on
Volume 6,
Issue 2,
Feb. 2007
Page(s):609
-
616
Abstract:
A novel parallel interference cancellation (PIC) based turbo space time equalizer (STE) structure designed for multiple antenna assisted uplink receivers is introduced. The proposed receiver structure allows the employment of non-linear type of detectors such as the Bayesian decision feedback (DF) assisted turbo STE or the maximum aposteriori (MAP) STE, while operating at a moderate computational cost. Receivers based on the proposed structure outperform the linear turbo detector benchmarker based on the minimum mean-squared error (MMSE) criterion, even if the latter aims for jointly detecting all transmitters' signals. Additionally the PIC based receiver is capable of equalizing non-linear binary pre-coded channels. The performance difference between the presented algorithms is discussed using extrinsic information transfer-function (EXIT) charts
|
Cart
