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Space Domain Multistage Interference Canceller for SDMA
Toshihiko NISHIMURA Takeo OHGANE Yasutaka OGAWA Yoshiharu DOI Jun KITAKADO
IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
SDMA, multistage interference canceller, adaptive array, FER, PHS,
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It is difficult for an adaptive array to reduce interference signals efficiently from received signals when the interference signals and desired signal are closely located. This is a problem for a spatial division multiple access (SDMA) system using the multibeam adaptive array as a multiuser detector. In this paper, we propose a space domain multistage interference canceller (SD-MIC) for the SDMA system. Its performance is evaluated by computer simulations, assuming Japanese personal handy phone system (PHS) uplink environments. The results show remarkable improvement in high spatial correlation situations.