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The base station (BS) density configuration is a key factor to improve energy efficiency (EE) performances. In this paper, BS density configurations for achieving the optimal EE performance in two-tier cellular networks are analyzed, where the Poisson point process (PPP) is used to model the BS spatial distribution. To make the EE performances trackable and analyzable, the BS density optimization...
The establishment of the municipal sewage plants has significantly improved the urban water environment, while their tail water has a certain impact on urban river's water quality, especially on the near-field. Currently, there are two main discharge modes of the tail water, namely centralized and decentralized discharges. As the increase of river restoration projects, for example riverbank treatment...
In order to provide communication service in the Intermittently Connected Mobile Networks (ICMN) where there is only intermittent connectivity between mobile nodes, a variety of epidemic-style routing algorithms have been proposed to achieve high message delivery probability. However, current works do not address the realistic environment that a message is split into multi frames to be transmitted...
With the extensive applications of FFT in digital signal processing and image signal processing which needs a extensive application of large-scale computing, it Become more and more important to improve parallelism, Efficient and Scalable parallel of FFT algorithm. This paper Improve the parallelism of the FFT algorithm based on the Six-Step FFT algorithm, And build up a framework Based on Grid, Through...
Aiming at the difficulty of designing weighting matrices for linear quadratic regulator (LQR), a multi-objective evolution algorithm (MOEA) based approach is proposed. The LQR weighting matrices, state feedback control rate and optimal controller are obtained by means of establishing the multi-objective optimization model of LQR weighting matrices and applying MOEA to it, which makes control system...
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