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We study the problem of computing an energy-efficient data delivery scheme in wireless sensor networks that leverages the knowledge of a set of trajectories of mobile sinks in the network to route data from the sensors to the mobile sinks. Sensors collect data from the environment and instead of directly sending them to the mobile sinks (henceforth simply “sinks”), they route data to a number of selected...
Clusters in protein interaction networks can potentially help identify functional relationships among proteins. The clustering problem can be modeled as a graph cut problem. Given an edge weighted graph the problem is to partition the vertices of the graph into k partitions of prescribed sizes such that the total weight of the edges within partitions are maximized. This problem is NP-complete for...
This paper addresses the problem of frequency domain packet scheduling (FDPS) incorporating spatial division multiplexing (SDM) multiple input multiple output (MIMO) techniques on the 3GPP long term evolution (LTE) downlink. We impose the LTE MIMO constraint of selecting only one MIMO mode (spatial multiplexing or transmit diversity) per user per transmission time interval (TTI). First, we address...
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