Title :
Temporal and spatial oversampling in direct sequence CDMA systems: A linear algebra approach
Author :
Köymen, Özge H. ; Meng, Teresa H.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
In this work we present a unified analysis of the capacity and performance gains attainable by oversampling at the receiver in the temporal and spatial domains under multiple transmit antennas through a linear algebra approach. We quantify the increase in dimensionality gain beyond the spreading factor and illustrate the increase in system performance.
Keywords :
code division multiple access; linear algebra; multipath channels; multiuser detection; signal sampling; spread spectrum communication; DS-CDMA systems; dimensionality gain; linear algebra approach; multiple transmit antennas; multiuser detector; spatial domain; spatial oversampling; spreading factor; synchronous CDMA system; system capacity; temporal domain; temporal oversampling; Additive noise; Linear algebra; Linear matrix inequalities; Multiaccess communication; Multipath channels; Performance analysis; Performance gain; Pulse shaping methods; Shape; Transmitters;
Conference_Titel :
Information Theory Workshop, 2002. Proceedings of the 2002 IEEE
Print_ISBN :
0-7803-7629-3
DOI :
10.1109/ITW.2002.1115462
