Title
A modified proportional fair radio resource management scheme in virtual RANs.
Abstract
This paper proposes a model for radio resource management in virtualised radio access networks, based on the criterion of proportional fairness, which is also adapted to deal with the situations when there is not enough capacity to serve all subscribers with an acceptable level of service, the so-called the extreme case. A single virtual network operator providing four different classes of services negotiates the required capacity to serve its subscribers, from a centralised entity called Virtual Radio Resource Management (VRRM). The main goals of VRRM are to maximise the utilisation of resources, while maintaining a level of fairness in the allocation of data rate among different services. However, under extreme situations, the algorithm is modified to react differently, according to the offered traffic load. In general, it keeps serving a number of users having the stringiest Quality of Service (QoS), with the minimum guaranteed data rate, while the rest of users performing lowest QoS priority services are increasingly delayed. The performance of the proposed algorithm is evaluated through a practical heterogeneous network scenario and different evaluation metrics. Results show that when there is enough capacity, the algorithm is capable of satisfying the predefined service level agreements, while keeping fairness, whereas under extreme situations, it delays just enough number of users to free capacity for high priority services. In both cases, the algorithm is capable of maximising the utilisation of resources.
Year
Venue
Keywords
2017
European Conference on Networks and Communications
Proportional fairness,Virtualisation,VNO,VRRM
Field
DocType
ISSN
Resource management,Virtual network,Radio resource management,Service level,Computer science,Quality of service,Computer network,Fairness measure,Heterogeneous network,Proportionally fair
Conference
2475-6490
Citations 
PageRank 
References 
0
0.34
9
Authors
3
Name
Order
Citations
PageRank
Behnam Rouzbehani111.03
Luis M. Correia228455.53
Luisa Caeiro3284.96