Designing Wireless Broadband Access for Energy Efficiency: Are Small Cells the Only Answer?

Emil Björnson; Luca Sanguinetti; Marios Kountouris

Designing Wireless Broadband Access for Energy Efficiency: Are Small Cells the Only Answer?

Information Theory 2015-04-29 v1 Networking and Internet Architecture math.IT

Authors: Emil Björnson , Luca Sanguinetti , Marios Kountouris

Abstract

The main usage of cellular networks has changed from voice to data traffic, mostly requested by static users. In this paper, we analyze how a cellular network should be designed to provide such wireless broadband access with maximal energy efficiency (EE). Using stochastic geometry and a detailed power consumption model, we optimize the density of access points (APs), number of antennas and users per AP, and transmission power for maximal EE. Small cells are of course a key technology in this direction, but the analysis shows that the EE improvement of a small-cell network saturates quickly with the AP density and then "massive MIMO" techniques can further improve the EE.

Keywords

wireless broadband access energy efficiency cellular network design small cells massive MIMO stochastic geometry power consumption model

Cite

@article{arxiv.1504.07566,
  title  = {Designing Wireless Broadband Access for Energy Efficiency: Are Small Cells the Only Answer?},
  author = {Emil Björnson and Luca Sanguinetti and Marios Kountouris},
  journal= {arXiv preprint arXiv:1504.07566},
  year   = {2015}
}

Comments

Published at Small Cell and 5G Networks (SmallNets) Workshop, IEEE International Conference on Communications (ICC), 6 pages, 5 figures, 1 table

Designing Wireless Broadband Access for Energy Efficiency: Are Small Cells the Only Answer?

Abstract

Keywords

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