Title :
Capacity of a packetised wideband LMMSE CDMA system with antenna diversity
Author :
Oppermann, Ian ; Latva-aho, Matti
Author_Institution :
Dept. of Electr. Eng., Oulu Univ., Finland
Abstract :
This paper investigates a wide-band packetised, slotted-ALOHA style CDMA system designed for mobile communications operating in a harsh urban environment. The propagation environment is characterised by fast Rayleigh multipath fading. The system considered is based on an iterative LMMSE receiver algorithm which adapts to the fading channel environment. The receiver algorithm lends itself well to the addition of diversity techniques and the benefits of antenna diversity are examined. Finally the throughput for the system is examined
Keywords :
Rayleigh channels; access protocols; broadband networks; channel capacity; code division multiple access; diversity reception; iterative methods; land mobile radio; least mean squares methods; multipath channels; multiuser channels; packet radio networks; personal communication networks; radio receivers; antenna diversity; diversity techniques; fading channel environment; fast Rayleigh multipath fading; harsh urban environment; iterative LMMSE receiver algorithm; mobile personal communication systems; packetised wideband LMMSE CDMA system; propagation environment; slotted-ALOHA; system capacity; throughput; Antennas and propagation; Broadband antennas; Fading; Iterative algorithms; Mobile communication; Multiaccess communication; Rayleigh channels; Receiving antennas; Throughput; Wideband;
Conference_Titel :
Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on
Conference_Location :
Sun City
Print_ISBN :
0-7803-4281-X
DOI :
10.1109/ISSSTA.1998.722485
