Title :
Block based RLS de-spread re-spread multitarget array: algorithm and performance
Author :
Du, Zhimin ; Gong, Ping ; Wu, Weiling
Author_Institution :
Sch. of Inf. Eng., Beijing Univ. of Posts & Telecommun., China
Abstract :
We develop a new blind adaptive array algorithm for a CDMA system by using de-spread re-spread directing and variable step size steepest gradient method. It tries to exploit all the received data and still saves the computation load for about two thirds compared to LS-DRMTA.. Its performance is compared with that of LS-DRMTA and LS-DRMTCMA.. Simulation results show that block RLS-DRMTA outperforms them in all the test situations
Keywords :
adaptive antenna arrays; array signal processing; code division multiple access; gradient methods; land mobile radio; least squares approximations; multiuser channels; spread spectrum communication; CDMA system; LS-DRMTA; LS-DRMTCMA; blind adaptive array algorithm; blind array processing; block RLS de-spread re-spread multitarget array; computation load saving; data-vectors; de-spread re-spread directing method; despread-respread signals; received data; reference symbols; simulation results; smart antenna arrays; variable step size steepest gradient method; Antenna arrays; Base stations; Delay; Electronic mail; Mobile antennas; Multiaccess communication; Resonance light scattering; Sensor arrays; Sorting; Telecommunication computing;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944829
