Title :
Iterative FDE receivers for UWB systems with strong interference levels
Author :
da Silva, Miguel Mira ; Dinis, Rui ; Montezuma, Paulo
fDate :
Oct. 29 2012-Nov. 1 2012
Abstract :
Since UWB (Ultra Wideband) signals usually share the spectrum with other transmissions, they tend to be subject to strong interference levels. The proposed iterative receiver combined with SC-FDE (Single-Carrier with Frequency-Domain Equalization) block transmission technique is an effective mechanism to mitigate such impairment of UWB signals. In order to further improve the performance through the exploitation of diversity, the proposed receiver implements an ARQ (Automatic Repeat ReQuest) error control technique. The combined technique results in a system able to face strong interference levels as well as deep fadings, even for fixed channels conditions.
Keywords :
automatic repeat request; error correction codes; frequency-domain analysis; iterative methods; radio spectrum management; radiofrequency interference; ultra wideband communication; wireless channels; ARQ error control technique; UWB system; automatic repeat request; block transmission technique; iterative FDE receivers; single-carrier with frequency-domain equalization; strong interference levels; ultra wideband signal; Automatic repeat request; Bandwidth; Fading; Feedforward neural networks; Frequency domain analysis; Interference; Receivers; ARQ techniques; UWB systems; interference mitigation; single-carrier modulations; soft combining;
Conference_Titel :
MILITARY COMMUNICATIONS CONFERENCE, 2012 - MILCOM 2012
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-1729-0
DOI :
10.1109/MILCOM.2012.6415604