Title :
Iterative transmitter and receiver optimization for synchronous CDMA systems
Author :
Ulukus, Sennur ; Yener, Aylin
Author_Institution :
Maryland Univ., Baltimore, MD, USA
Abstract :
The user capacity and the information theoretic sum capacity of a single-cell CDMA system have been recently shown to be achieved by the same transmit strategies. We propose an alternating minimization based algorithm that updates the transmitters and the receivers of the users iteratively. The algorithm is suitable for online implementation and alleviates the need for scheduling of the user updates, both of which are in contrast with the previously proposed algorithms.
Keywords :
channel capacity; code division multiple access; information theory; iterative methods; least mean squares methods; minimisation; radio receivers; radio transmitters; alternating minimization technique; information theoretic sum capacity; iterative algorithm; receiver optimization; single-cell system; synchronous CDMA systems; transmitter optimization; user capacity; Code division multiplexing; Correlation; Eigenvalues and eigenfunctions; Filters; Iterative algorithms; Minimization methods; Multiaccess communication; Scheduling algorithm; Signal processing; Transmitters;
Conference_Titel :
Information Theory, 2002. Proceedings. 2002 IEEE International Symposium on
Print_ISBN :
0-7803-7501-7
DOI :
10.1109/ISIT.2002.1023320
