Rate-Constrained Energy Minimization in Networks with Multiple Mobile Network Operator Access

Energy efficiency is one important consideration in designing wireless mobile networks to support a large number of battery-powered mobile terminals. To provider a wider coverage to serve more users, wireless carrier infrastructure from various mobile network operators (MNOs) can be pooled together. For example, a cellular system user can access different kinds of cellular broadband networks with multiple transceivers. MNOs however have different heterogeneous rate function characteristics, and thus present new challenges to wireless network optimization. In this paper, we study the design of energy-efficient power control algorithms in a network with multiple MNOs using a unique log- convexity property of the standard interference function approach. Furthermore, the power control algorithms can be enhanced using the congestion level at each MNO.