Title :
Noncoherent RAKE-receiver with optimum weighted combining and improved closed-loop power control
Author :
Nikolai, Dirk ; Kammeyer, Karl-Dirk
Author_Institution :
Dept. of Commun., Bremen Univ., Germany
Abstract :
In this paper, we present two methods to improve the performance of a mobile communication system compatible with the standard IS-95. The first approach reduces the bit error rate by modifications of the closed-loop power control scheme. In order to overcome the detrimental effects of delayed control information, linear prediction is used. This is especially helpful at higher velocities of the mobile user. Secondly, we apply weighted combining of the correlation components in the demodulation process within the RAKE receiver
Keywords :
closed loop systems; code division multiple access; correlation methods; demodulation; error statistics; land mobile radio; power control; prediction theory; radio receivers; telecommunication control; telecommunication standards; bit error rate; closed-loop power control; correlation components; delayed control information; demodulation process; linear prediction; mobile communication system; mobile user; noncoherent RAKE-receiver; optimum weighted combining; performance; standard IS-95; Bit error rate; Communication standards; Communication system control; Delay effects; Delay lines; Demodulation; Fading; Mobile communication; Multipath channels; Power control;
Conference_Titel :
Spread Spectrum Techniques and Applications Proceedings, 1996., IEEE 4th International Symposium on
Print_ISBN :
0-7803-3567-8
DOI :
10.1109/ISSSTA.1996.563778
