Title :
Directional antenna arrays in CDMA ST-Rake receiving
Author :
Jin, Peng ; Goodman, Nathan A. ; Melde, Kathleen L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., USA
Abstract :
In this paper, the effects of directive antennas and the array structure on ST-Rake receivers in direct-sequence CDMA (DS-CDMA) communication are studied. Conformal arrays with individual directional antennas are proposed. Using these arrays, the full-dimension ST adaptive receiver can be divided into multiple reduced-dimension receivers; therefore, computational requirements can be significantly reduced and fewer training data are needed to estimate the environment. In this paper, we demonstrate optimum system performance of directive antennas assuming known interference and noise statistics.
Keywords :
adaptive antenna arrays; array signal processing; code division multiple access; conformal antennas; directive antennas; optimisation; radio receivers; receiving antennas; space-time adaptive processing; spread spectrum communication; DS-CDMA communication; ST-Rake receivers; array structure; conformal arrays; direct-sequence CDMA; directional antennas; directive antennas; full-dimension ST adaptive receiver; multiple reduced-dimension receivers; optimum system performance; Adaptive arrays; Antenna arrays; Directional antennas; Directive antennas; Interference; Multiaccess communication; Receiving antennas; System performance; Training data; Working environment noise;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552606
