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In this paper, we proposed a utility-based energy-efficient (UEE) resource allocation algorithm in downlink OFDMA heterogeneous networks (HetNets) with mixed traffic. The resource allocation problem is formulated as a mixed integer nonlinear programming (MINLP) problem first. Then an iterative algorithm is proposed to optimize the resource block (RB) scheduling and power allocation alternatively,...
The paper further investigates the computational problem and complexity of predicting Ribonucleic Acid structure. In order to find a way to optimize the Ribonucleic Acid pseudoknotted structure, we investigate the Ribonucleic Acid pseudoknotted structure based on thermal dynamic model, computational methods, minimum free energy are adopted to predict Ribonucleic Acid structure. The contribution of...
Line detection in gray-scale images is a low-level processing which has many applications such as road detection in remote images and vessel detection in medical images. An efficient primitive connection-based algorithm for detecting line segments is proposed. Canny operator is used to detect edges in a digital image and all the edges are tracked to form series of edge point chains by a 4-neighbor-priority...
In this paper, we investigate call admission control (CAC) with opportunistic scheduling and propose a novel CAC algorithm for users with quality of service (QoS) requirements. Our main contribution is threefold. First, we verify that, compared with several other scheduling schemes, cumulative distributed function based scheduling (CS) makes the best tradeoff between efficiency and fairness in full-load...
Integral image becomes a very useful tool in most of the computer vision applications in recent years, and the parallelization strategy is the most popular approach for efficiently generating the integral image. However, most of current parallel integral image generation algorithms are developed based on the dedicated hardware architecture. In this paper, we developed a parallel integral image generation...
Formal methods and automatic tools are always necessary for analyzing security protocols, and model checking has become a hot spot of research for its ability of verifying finite-state concurrent system automatically. In this paper, we propose a model of security protocols based on MSR (multi-set rewriting), coupled with PLTL describing security properties. Based on the model, a series of key automatic...
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