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Many risk factors affect software development and risk management has become one of the major activities in software development. Discovering causal directions among risk factors and project performance are important support for risk management. The Additive Noise Model (ANM) is an effective algorithm for discovering the direction on one-to-one causalities, but ineffective on many-to-one causalities...
A novel time-frequency domain two-dimensional MMSE channel estimation (2D-MMSE) algorithm based on separation property of mobile wireless channels is proposed in this paper in order to provide the current channel state knowledge and improve the spectral efficiency in Single Carrier Frequency Domain Equalization (SC-FDE) systems over frequency-selective channels. We use the Unique Word (UW) to be the...
The paper proposes a method to improve the simulation speed of complex electromagnetic environment based on Ray Tracing model. As the most critical factor in complex electromagnetic environment, terrain meshing to reduce simulation time is on of the most feasible method. Do Daubechies4 two-dimensional discrete wavelet transform on the terrain DEM data to smooth the terrain to accelerate simulation...
The decision made in the selection of a construction project transaction method for a project is one of the key factors determining the success of a project. The Analytic Hierarchy Process (AHP) has been widely used to select transaction method for project procurement, but this has occurred mainly in crisp (non-fuzzy) decision applications. Furthermore, it is also recognized that human assessment...
Maximum likelihood (ML) detection algorithm is the best method for multi-user detection, but it has high computational complexity. This paper presents a view of this issue to its rapid and effective method, that is, complex spherical decoding algorithm. This algorithm not only maintains good performance of the ML detection, but also has a low computational complexity. On the other hand, the multi-carrier...
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