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

Publication Type:

Conference Paper


IEEE International Conference on Communication Workshop (ICCW) (2015)


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 EE. Small cells are of course a promising 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” is also needed to maximize the EE.

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