[en] In this paper, we present a new hardware test-bed to demonstrate closed-loop precoded communications for interference mitigation in multi-beam ultra high throughput satellite systems under realistic payload and channel impairments. We build the test-bed to demonstrate a real-time channel aided precoded transmission under realistic conditions such as the power constraints and satellite-payload non-linearities. We develop a scalable architecture of an SDR platform with the DVB-S2X piloting. The SDR platform consists of two parts: analog-to-digital (ADC) and digital-to-analog (DAC) converters preceded by radio frequency (RF) front-end and Field-Programmable Gate Array (FPGA) backend. The former introduces realistic impairments in the transmission chain such as carrier frequency and phase misalignments, quantization noise of multichannel ADC and DAC and non-linearities of RF components. It allows evaluating the performance of the precoded transmission in a more realistic environment rather than using only numerical simulations. We benchmark the performance of the communication standard in realistic channel scenarios, evaluate received signal
SNR, and measure the actual channel throughput using LDPC codes.
Research center :
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Disciplines :
Electrical & electronics engineering
Author, co-author :
Merlano Duncan, Juan Carlos ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Querol, Jorge ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Maturo, Nicola ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Krivochiza, Jevgenij ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Spano, Danilo ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Norshahida, Saba ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Martinez Marrero, Liz ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Chatzinotas, Symeon ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
Ottersten, Björn ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
no
Language :
English
Title :
Hardware Precoding Demonstration in Multi-Beam UHTS Communications under Realistic Payload Characteristics
Publication date :
01 November 2019
Event name :
37th International Communications Satellite Systems Conference (ICSSC2019)
Event place :
Okinawa, Japan
Event date :
from 29-10-2019 to 01-11-2019
Audience :
International
Journal title :
Proceedings of the 37th International Communications Satellite Systems Conference
Peer reviewed :
Peer reviewed
Focus Area :
Security, Reliability and Trust
FnR Project :
FNR11689919 - Cognitive Cohesive Networks Of Distributed Units For Active And Passive Space Applications, 2017 (01/03/2018-31/08/2021) - Juan Merlano Duncan