학술논문

Comparative evaluation on real-time hardware platforms of coded OFDM/QAM and OFDM/OQAM systems
Document Type
Conference
Source
2012 International Symposium on Wireless Communication Systems (ISWCS) Wireless Communication Systems (ISWCS), 2012 International Symposium on. :186-190 Aug, 2012
Subject
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Signal Processing and Analysis
OFDM
Quadrature amplitude modulation
Digital video broadcasting
Synchronization
Receivers
Channel estimation
COFDM
OFDM/OQAM
Physical layer
Language
ISSN
2154-0217
2154-0225
Abstract
This paper describes the OFDM/QAM and OFDM/OQAM platforms that have been built these last years in Orange Labs in order to compare both modulation schemes. The targeted application was related to the physical layer of mobile terrestrial digital video broadcasting networks; then system parameters are borrowed from the corresponding DVB standards. In addition to a usual evaluation on AWGN channel, SFN and TU channels with strong mobility have been emulated with our real-time hardware platforms. These platforms include realistic channel estimation/equalization and synchronization methods. Our results show that, for this mobile application, OFDM/OQAM can significantly outperform OFDM/QAM.