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Impact of picocells on the capacity and energy efficiency of mobile networks

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Abstract

The deployment of small cells in mobile networks has aroused a large interest in the last few years. This paper investigates the impact of picocell deployment on the performance and power consumption of mobile networks. Since different network upgrades introduce different performance gains, comparing different configurations exclusively on their overall power consumption can be rather biased. For this reason, a new key performance indicator, termed “energy efficiency”, is introduced and used throughout this study, bringing together network performance and its overall power consumption. In the first section of the study, a theoretical analysis for the Erlang-like capacity of a network, considering a uniform topology and traffic, is performed, using queuing theory analysis, namely processor-sharing queues. Results show that in all cases the deployment of picocells improve the performance of the network, however the energy efficiency is noted to be dependent on the deployment scenario considered. In the second part of the study, a more realistic scenario with non-uniform topology and traffic is considered, which is carried out through a large-scale system level simulator. Results show that by deploying picocells in areas experiencing high levels of traffic, the energy efficiency of the network can be considerably improved.

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Authors and Affiliations

  1. Orange Labs, Issy les Moulineaux, Paris, France

    L. Saker & S. E. Elayoubi

  2. Aalborg University, Aalborg, Denmark

    G. Micallef

  3. Nokia Siemens Networks, Espoo, Finland

    H. O. Scheck

Authors
  1. L. Saker
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  2. G. Micallef
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  3. S. E. Elayoubi
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  4. H. O. Scheck
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Correspondence to L. Saker.

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Saker, L., Micallef, G., Elayoubi, S.E. et al. Impact of picocells on the capacity and energy efficiency of mobile networks. Ann. Telecommun. 67, 133–146 (2012). https://doi.org/10.1007/s12243-012-0287-x

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  • DOI: https://doi.org/10.1007/s12243-012-0287-x

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