Kyuho Son

TL;DR: A total cost minimization is formulated that allows for a flexible tradeoff between flow-level performance and energy consumption and a simple greedy-on and greedy-off algorithms are proposed that are inspired by the mathematical background of submodularity maximization problem.

TL;DR: This paper proposes a practically implementable switching-on/off based energy saving algorithm that can be operated in a distributed manner with low computational complexity and describes how the proposed algorithms can be implemented in practice at the protocol-level and also estimates the amount of energy savings through a first-order analysis in a simple setting.

TL;DR: The proposed online algorithm is a simple mixture of inter- and intra-cell handover mechanisms for existing users and user association control and cell-site selection mechanisms for newly arriving users, and uses a notion of expected throughput as the decision making metric in conventional systems.

TL;DR: The proposed online algorithm is a simple mixture of inter- and intra-cell handover mechanisms for existing users and user association control and cell-site selection mechanisms for newly arriving users, and uses a notion of expected throughput as the decision making metric in conventional systems.

TL;DR: This work proposes a novel low-complex and fully distributed IM scheme, called REFIM (REFerence based Interference Management), in the downlink of heterogeneous multi-cell networks and presents that as long as interference is managed well, the spectrum sharing policy can outperform the best spectrum splitting policy where the number of subchannels is optimally divided between macro and femto cells.