Q-FCRA: QoS-based OFDMA femtocell resource allocation algorithm

Abstract : Recently, operators have resorted to femtocell networks in order to enhance indoor coverage and increase system capacity. Nevertheless, to successfully deploy such solution, efficient resource allocation algorithms and interference mitigation techniques should be deployed. The new applications delivered by operators require large amounts of network bandwidth. Whereas, some customers may want to pay more in exchange for a better quality of service (QoS), some others need less resources and can be charged accordingly. Hence, we consider an OFDMA femtocell network serving both QoS constrained high-priority (HP) and best-effort (BE) users. Our objective is to satisfy a maximum number of HP users while serving BE users as well as possible. This optimization problem is multi-objective NP-hard. For this aim, we propose in this paper a new resource allocation and admission control algorithm, called Q-FCRA, based on clustering and taking into account QoS requirements. We show by extensive network simulation results that our proposal outperforms two state of the art schemes (Centralized-Dynamic Frequency Planning, C-DFP, and Distributed Random Access, DRA) as well as our previous proposal, FCRA, in both low and high density networks. The results concern the number of accepted users, the fairness, the throughput satisfaction rate and the spectrum spatial reuse.
Type de document :
Communication dans un congrès
ICC 2012 - 2012 IEEE International Conference on Communications, Jun 2012, Ottawa, Canada. IEEE, 2012, 〈10.1109/ICC.2012.6364241〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01797904
Contributeur : Nadjib Aitsaadi <>
Soumis le : mardi 22 mai 2018 - 21:31:07
Dernière modification le : jeudi 21 mars 2019 - 13:06:49

Identifiants

Citation

Abbas Hatoum, Rami Langar, Nadjib Aitsaadi, Guy Pujolle. Q-FCRA: QoS-based OFDMA femtocell resource allocation algorithm. ICC 2012 - 2012 IEEE International Conference on Communications, Jun 2012, Ottawa, Canada. IEEE, 2012, 〈10.1109/ICC.2012.6364241〉. 〈hal-01797904〉

Partager

Métriques

Consultations de la notice

70