Title :
List Sphere Decoding Combined with Linear Detection-Based Iterative Soft Interference Cancellation Via Exit Chart
Author :
Wang, Xinglin ; Niu, Kai ; He, Zhiqiang ; Wu, Weiling ; Zhang, Xin
Author_Institution :
Beijing Univ. of Posts & Telecommun.
Abstract :
Iterative list sphere decoding (LSD) can achieve near capacity on a multiple-antenna channel, however, with a rather high complexity. In order to reduce the complexity, in this paper, linear detection-based iterative soft interference cancellation (ISIC) instead of LSD is applied at the second and later iterations. We propose to exploit extrinsic information transfer (EXIT) chart analysis to select a specific ISIC to alleviate large performance degradation. Here MF-based and MMSE-base iterative soft interference cancellations (ISIC) are selected to be combined with the LSD. Simulation shows that the iterative combined detections have little signal-to-noise ratio (SNR) loss and a much lower complexity in comparison with iterative LSD
Keywords :
MIMO communication; antenna arrays; interference suppression; iterative decoding; least mean squares methods; telecommunication channels; EXIT chart; MF-based iterative soft interference cancellations; MMSE-base iterative soft interference cancellations; extrinsic information transfer chart analysis; iterative list sphere decoding; linear detection-based iterative soft interference cancellation; multiple-antenna channel; signal-to-noise ratio; Buffer storage; Convergence; Degradation; Information analysis; Interference cancellation; Iterative decoding; MIMO; Maximum likelihood decoding; Maximum likelihood detection; Mobile communication;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254463