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Tag Archive: 2016 Ns2 Projects

Widely Linear Estimation for Space-Time-Coded GFDM in Low-Latency Applications

This paper presents a solution for achieving transmit diversity with Generalized Frequency Division Multiplexing (GFDM). Compared to previous works, the proposed solution significantly improves symbol error rate (SER) performance and latency, where both aspects are crucial for future 5G cellularnetworks. It is shown that widely linear estimation at the receiver side can jointly equalize and […]

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Solving nearest neighbors problem on GPU to speed up the Fruchterman-Reingold graph layout algorithm

Fast searching of the nearest neigbors in unordered point clouds is a very common task. This article presents a new parallel method tested on graph layout algorithm. Graphs in computer science are widely used in social network analysis, computer networks, transportation networks, and many other areas. In general, they can visualize relationships between objects. However, fast drawing of graphs […]

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Modelling Virtual Radio Resource Management with traffic offloading support

This paper proposes a new model for the management of virtual radio resources with traffic offloading support. The model has two key components: the estimation of network capacity and the data rate allocation. In the first one, the probability description of Signal-to-Interference-plus-Noise Ratio is used to obtain cumulative and density functions for the total network throughput. The primary objective […]

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Estimation of code ionospheric biases using Kriging method

The code ionospheric bias, also known as the Differential Code Bias (DCB), is an important correction term for single-frequency receiver. This paper proposes a new method to estimate the biases as well as the vertical ionospheric delays using Kriging estimator with a network of receivers. Kriging estimates an unknown variable based on a set of known parameters […]

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A comparison of thermoset and thermoplastic arc chutes in molded-case circuit breakers under fault clearing

Molded-case circuit breakers (MCCB) are vital devices that are used in many distribution systems for protection from faults in the network. During a fault, a large increase in current passes through the terminals of the MCCB and the contacts open by electromagnetic actuation. On opening, a low-voltage arc is struck between the contacts, forming a high-temperature […]

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Local SIP Overload Control: Controller Design and Optimization by Extremum Seeking

The Session Initiation Protocol (SIP) is a signaling protocol for managing various types of real time sessions between parties over an Internet Protocol network. An open issue is the control of overload situations that occur when the incoming flow of requests to a SIP server overcomes the server processing capacity. In particular, call establishment times increase […]

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Tunable High-Frequency Properties of Co-Ni Ferromagnetic Nanowires through Composition Modulation

High-frequency properties of Co-Ni ferromagnetic nanowires with different compositions were investigated in this study. Co-Ni nanowires including Ni, Co38Ni62, Co50Ni50, Co72Ni28, and Co were synthesized in anodic aluminum oxide (AAO) templates by electrodeposition. The ferromagnetic resonance (FMR) frequency of nanowires was measured by a vector network analyzer with a coplanar waveguide line. Without an external magnetic field, […]

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Lasso-based reverberation suppression in automatic speech Recognition

Far-field automatic speech recognition (ASR) is challenging, mainly attributed to the high reverberation in the recordings. A novel linear sparse prediction model has been proposed to estimate and suppress reverberation. This model considers reverberation as a mixture of early and late reflections of the direct signal and estimates the late reflection with Lasso. It has […]

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Dynamic resource allocation in SCADY grid toolkit

With the advancement in high performance applications and building of low cost computing resources, resource allocation to tasks in Grid Computing has became one of the most critical job. If resource allocation is done properly, it can lead to high performance throughput. This paper analyzes the Windows based Grid toolkit – SCADY (Scalable and Dynamic) […]

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