Channel-hole Based Scheduling in Relay-assisted Wireless Networks - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Global Information Infrastructure Symposium, GIIS'11, IEEE Xplore Année : 2011

Channel-hole Based Scheduling in Relay-assisted Wireless Networks

Résumé

Relay technologies are capable to significantly im prove network performances in terms of cell capacity, coverage extension and system throughput. However, it should rely on an efficient scheduling scheme to fully profit from this potential gain. Although opportunistic scheduling is considered as the most promising scheduling technology for future networks in many literatures, it is not appropriate for the relay-assisted wireless systems due to some special features of the relay mode. In addition, most of the current literatures only discuss the scheduling in Base Station (BS) and neglect the channel state asymmetry between the BS-RS (Relay Station) link and RS-MS (Mobile Station) link. So we argue that an appropriate scheduling in RS can extremely improve the performance of the system. In this paper, we define a new concept called "channel-hole" which is used to precisely measure the wasted subchannel resources caused by the channel state asymmetry, and then propose a new scheduling algorithm, namely channel-hole based scheduling, in the RS based on this new concept. We also propose a theoretical model to analyze the proposed scheduling. Simulation results show that our proposed channel-hole scheduling is capable to utilize the radio resource more efficiently compared to the case where an opportunistic scheduling is used at the RS.
Fichier principal
Vignette du fichier
LI_GIIS.pdf (260.13 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00794895 , version 1 (07-03-2013)

Identifiants

  • HAL Id : hal-00794895 , version 1

Citer

Yan Li, Yacine Ghamri-Doudane, M. Abdennebi. Channel-hole Based Scheduling in Relay-assisted Wireless Networks. Global Information Infrastructure Symposium, GIIS'11, IEEE Xplore, 2011, Vietnam. pp.1 - 6. ⟨hal-00794895⟩
173 Consultations
261 Téléchargements

Partager

Gmail Facebook X LinkedIn More