Abstract:
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The emerging traffic demand has fueled the rapid densification of cellular networks. The increased
number of Base Stations (BSs) leads to augmented energy consumption and expenditures for the Mobile
Network Operators (MNOs), especially during low traffic, when many of the BSs remain underutilized.
Hence, the MNOs are encouraged to provide “green” and cost effective solutions for their networks.
In this chapter, an innovative algorithm for infrastructure sharing in two-operator environments is
proposed, based on BSs switching off during low traffic periods. Motivated by the conflicting interests
of the operators, the problem is formulated in a game theoretic framework that enables the MNOs to
act individually to estimate the switching off probabilities that reduce their financial cost. The authors
analytically and experimentally estimate the potential energy and cost savings that can be accomplished.
The obtained results show a significant reduction in both energy consumption and expenditures, thus
giving the operators the necessary incentives for infrastructure sharing. |