Title :
Space domain multistage interference canceller for SDMA
Author :
Nishimura, Toshihiko ; Ohgane, Takeo ; Ogawa, Yasutaka ; Doi, Yoshiharu ; Kitakado, Jun
Author_Institution :
Graduate Sch. of Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
It is difficult for the adaptive array to reduce interference signals efficiently from the received signals when the interference signals and desired signal are closely located. This is a serious problem for a spatial division multiple access (SDMA) system using the multibeam adaptive array as a multiuser detector. We propose a space domain multistage interference canceller (SD-MIC) for the SDMA. Its performance is evaluated in frame error rate (FER) by computer simulations, considering uplink environment in the Japanese personal handy-phone system (PHS). The results show the remarkable improvement in high spatial correlation situations
Keywords :
adaptive antenna arrays; adaptive signal processing; array signal processing; error statistics; interference suppression; land mobile radio; multiuser channels; radio links; signal detection; space division multiple access; Japan; SDMA; adaptive array; computer simulations; frame error rate; high spatial correlation; interference signals reduction; multibeam adaptive array; multiuser detector; performance evaluation; personal handy-phone system; received signals; space domain multistage interference canceller; spatial division multiple access; uplink environment; Adaptive arrays; Computer errors; Detectors; Forward error correction; Interference cancellation; Microwave integrated circuits; Multiaccess communication; Multiuser detection; Sensor arrays; Signal detection;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851540
