Title :
Code domain analysis of nonlinear links
Author_Institution :
Qualcomm Inc., San Diego, CA
Abstract :
The influence of nonlinearity on commercial code division multiple access links is considered. Nonlinearity corrupts the modulation of Walsh codes and generates modulation of new codes; a memoryless model and a Volterra model are presented to analyse this effect. The Volterra series requires only a few terms and can be applied to identify the channel nonlinearity from observations at the receiver.
Keywords :
Volterra equations; code division multiple access; codes; Volterra model; Walsh codes; channel nonlinearity; code division multiple access links; code domain analysis; memoryless model; nonlinear links;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20082453
