Multi-user cross-layer allocation design for LP-OFDM high-rate UWB

• Published in: 2008 IEEE International Symposium on Wireless Communication Systems
• Main Authors: Khalil, Ayman, Stephan, Antoine, Crussière, Matthieu, Hélard, Jean-François
• Other Authors: Institut d'Electronique et de Télécommunications de Rennes (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Centre National de la Recherche Scientifique (CNRS), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Nantes (UN)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Projet Européen ICT-OMEGA, ICT-Omega
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2008
• Subjects: [INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing; [SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing; Iceland
• Online Access: https://hal.science/hal-00325637; https://hal.science/hal-00325637/document; https://hal.science/hal-00325637/file/Final_ISWCS08_Ayman_Khalil.pdf; https://doi.org/10.1109/ISWCS.2008.4726007

International audience In this paper, we investigate a cross-layer design for the packet scheduling and the resource allocation in UWB systems. This design considers the combination of queuing and channel state information (CSI) which provides QoS support for multimedia applications in UWB. For the physical layer, the use of a linear precoded orthogonal division multiplexing (LPOFDM) waveform is proposed because of its significant performance increase compared to the WiMedia proposal. For the medium access control layer, scheduling is performed in order to differentiate between the different users and to satisfy their quality of service constraints. This cross-layer approach optimizes the system spectral efficiency and solves the problem in the WiMedia solution of cohabitation of more than three users sharing the three sub-bands of the same channel. Simulation results show that the proposed scheme leads to a considerable improvement in resource allocation and can guarantee the required quality of service.