Open AccessImproving dynamic range of software‐defined radio receivers for multi‐carrier wireless systems
Author(s) -
Cruz Pedro Miguel,
Carvalho Nuno Borges
Publication year - 2015
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2013.0692
Subject(s) - software defined radio , wireless , computer science , dynamic range , electronic engineering , range (aeronautics) , software , radio frequency , telecommunications , engineering , programming language , aerospace engineering
This study presents an architecture to increase the instantaneous dynamic range of multi‐carrier wideband digital receivers. The proposed topology includes a directional coupler followed by two parallel analog‐to‐digital converters and digital signal processing to reconstruct the signal. It will be shown that the proposed technique is able to increase the dynamic range of software‐defined radio (SDR) receivers for multiband signals presenting certain statistical patterns. The concept is validated by simulations and measurements of a real SDR front‐end receiver for multiband communications scenario, which will demonstrate improvements in the order of 6 dB when compared to existing alternatives.