Conference paper
An Efficient Method for Performance Evaluation of Femto-Macro Overlay Systems
This paper considers a two-tier femto-macro overlay network architecture, where groups of femtocells are overlaid by macrocells. The capacity of the femtocells is limited, thus redirection of blocked femto calls to the overlaid macrocell is used as a QoS assurance strategy. Similar overflow approaches have been used in telephony; however, extension of this approach to capacity-constrained femto-macro overlay networks poses significant challenges due to the wide variety of bandwidth requirement of Internet services, the large number of femtocells overlaid by a macrocell, and the need for fast computations imposed by practical requirements of dynamic real-time resource allocation.
We propose a new computationally efficient numerical method for the loss probability approximation in such two-tier femto-macro overlay networks. The accuracy of the method is verified by exact Markov-chain solutions for small systems and by simulations for larger systems.
| Language: | English |
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| Publisher: | IEEE |
| Year: | 2011 |
| Pages: | 1-6 |
| Proceedings: | IEEE International Conference on Communications 2011 |
| Series: | I E E E International Conference on Communications |
| ISBN: | 1612842313 , 1612842321 , 161284233X , 161284233x , 9781612842318 , 9781612842325 and 9781612842332 |
| ISSN: | 19381883 and 15503607 |
| Types: | Conference paper |
| DOI: | 10.1109/icc.2011.5962706 |
Accuracy Approximation methods Computational modeling Femtocells Internet Internet services Macrocell networks Markov chain Markov processes QoS assurance strategy Quality of service Servers approximation theory blocked femto calls capacity-constrained femto-macro overlay networks computer network performance evaluation dynamic real-time resource allocation femto-macro overlay network performance evaluation femtocell network femtocellular radio loss probability approximation macrocell network overflow approach probability quality of service resource allocation telephony two-tier femto-macro overlay network architecture
