Title :
A RAKE type receiver structure for CDMA mobile communication systems using antenna arrays
Author :
Zhaohui, Zheng ; Aihua, Pei ; JianDong, Hu
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
A new procedure is proposed for resolving multipaths for the wireless channel. This method uses antenna arrays at the base station to estimate the direction of arrival (DOA) of the multipaths. Beams are formed in the specific DOAs. Thus the significant paths can be separated from one another and then fed into the fingers of a RAKE type receiver. Each finger is adaptively adjusted for delay to achieve optimum combining. We show that such enhancement greatly improves the system performance. Results of preliminary simulation studies are also presented
Keywords :
adaptive signal processing; antenna arrays; code division multiple access; delays; direction-of-arrival estimation; land mobile radio; multipath channels; radio receivers; signal resolution; CDMA mobile communication systems; DOA; RAKE type receiver structure; antenna arrays; base station; delay; direction of arrival; enhancement; multipaths; optimum combining; simulation studies; system performance; wireless channel; Antenna arrays; Base stations; Delay; Direction of arrival estimation; Directive antennas; Fingers; Mobile communication; Multiaccess communication; RAKE receivers; System performance;
Conference_Titel :
Communications, 1996. ICC '96, Conference Record, Converging Technologies for Tomorrow's Applications. 1996 IEEE International Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-3250-4
DOI :
10.1109/ICC.1996.542252
