The downlink orthogonality factors influence on WCDMA system performance

Author

Pedersen, Klaus Ingemann ; Mogensen, Preben Elgaard

Author_Institution

Nokia Networks, Aalborg, Denmark

Volume

4

fYear

2002

fDate

2002

Firstpage

2061

Abstract

The large scale statistics of the downlink orthogonality factor (OF) is addressed in this paper for typical urban macrocellular environments for terminals with standard Rake receivers. It is found that the OF improves as the user moves closer to the BS and the OF is positively correlated with the shadow fading component of the radio channel. The mean value of the OF is typically larger for users dominated by own cell interference over other cell interference. These effects result in a larger excess capacity close to the BS, compared to scenarios where the OF is assumed to be constant within the cell.

Keywords

adjacent channel interference; cellular radio; cochannel interference; code division multiple access; fading channels; radio receivers; statistical analysis; Rake receivers; WCDMA; downlink orthogonality factor; large scale statistics; other cell interference; own cell interference; shadow fading component; system performance; terminals; urban macrocellular environments; Delay; Downlink; Fading; Interference; Large-scale systems; Multiaccess communication; Multipath channels; Signal to noise ratio; Statistics; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. Proceedings. VTC 2002-Fall. 2002 IEEE 56th

ISSN

1090-3038

Print_ISBN

0-7803-7467-3

Type

conf

DOI

10.1109/VETECF.2002.1040581

Filename

1040581