Abstract
The growth of self-installed femtocells in residential and office environments triggers harmful femto-to-femto interference levels. In order to overcome this problem, we suggested that operators mutually share their licensed spectrum allowing femtocells to exploit also the frequency resources of other operators. By assuming mutual arrangements among operators, we proposed algorithms enabling femtocells to dynamically select the best operating channel among those available from every operator just based on local interference measurements. In such a way the interference between femtocells belonging to the same operator can be considerably reduced. In this paper we describe and evaluate performance of the proposed dynamic frequency selection algorithms in terms of outage probability and average throughput per femtocell. In our analysis we examine various scenarios in which we consider different number of available frequency channels. Results show that in a multi-operator environments the proposed approach allows to improve QoS in femtocell networks.
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Mazzenga, F., Petracca, M., Pomposini, R., Vatalaro, F. (2011). Improving QoS of Femtocells in Multi-operator Environments. In: Salgarelli, L., Bianchi, G., Blefari-Melazzi, N. (eds) Trustworthy Internet. Springer, Milano. https://doi.org/10.1007/978-88-470-1818-1_9
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DOI: https://doi.org/10.1007/978-88-470-1818-1_9
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