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This paper deals with the designing of low complexity scheduling for multiuser MIMO-OFDM systems with limited CSI (channel state information). By using quantization technology, we can get semi-orthogonal region sets. Thus, the transmitter can carry out user scheduling by using the feedback CSI, which including channel direction information (CDI) and channel quality information (CQI) and the quantized...
As the requirements of the systems change, it is desirable to take these changes into account. To do so, the software must be extended to consider the changes. But the problem is that the modifications on software artifacts may cause conflicts and inconsistencies in the structure of the software, which are difficult to find and time-consuming to correct. Hence, it is necessary to refactor software...
This paper presents a new method of localization and map building of mobile robot based on mixed map model using LRF (Laser Range Finder). The mixed model composed of occupancy grids and line character maps is utilized to represent the environment map. Firstly, the LRF models and Bayes rules are used to construct a local occupancy grid map. Then, we extract obstacles points to get a precise geometry...
U-face concept was first proposed to improve the rate of face recognition. U-face is a face recognition normalization model. U-face removes background, hair, and other factors that are not conducive to face recognition; retain only the focus of the face region. In the case of necessary human face images were rotated and histogram normalized. And then describes the Kernel Principal Component Analysis...
This paper presents a model-based approach to verify compatibility of coordinated real-time components' behavior. Timed Behavior Protocol (TBP) is introduced to specify real-time components' timed interaction behaviors. TBP extends the behavior protocol used in SOFA component model by incorporating time factor into behavior protocol model of component based real-time system. Event tokens in TBP are...
In recent years, millions engineers and researchers work directly or indirectly on next generation network. From the Internet of Things (IoT), cloud computing and mobile internet to three networks convergence, these revolutionary emerging industries are different forces that will drive the architecture and evolution of next generation network. IPv6 is considered the most important cornerstone. This...
The paper compares the differences and advantages of Digital Elevation Model (DEM) with those of traditional topographic model. It introduces the technical key points of DEM establishment, such as technical route, grid data processing and vector data processing. Algorithm of automatically assigning DEM elevation is deeply studied in this paper. Using this algorithm can improve the efficiency of data...
The paper chooses the penetration impact signal as the research object. The matched filtering algorithm has been used to process the impact signal according to its frequency. On the analysis of the correlation algorithm and radix-4 FFT algorithm, the paper puts forward an implementation algorithm on FPGA of the fixed geometric structure addressing. By using fixed geometry addressing, pipeline design...
In this paper, we proposed a broad family of interconnection networks, denoted as Petersen-Gaussian(PG) networks, based on well-known Petersen network and Gaussian network. And the new networks include part of previously proposed Peterson-torus networks. Firstly, we extend the degree of Gaussian network from 4 to 10, and then set Petersen network as modules on grid points of the extended Gaussian...
Relative growth is defined as the description of the growth relationship between biological and biological part (organ). The relative growth function is a function on variable of growth and non-time variables. In the paper, a system relative growth model which taken Betula costata as an example was constructed based on the projection pursuit regression (PPR) artificial neural network. The system model...
Radar altimeter is applied to measure the height of an aircraft above the ground in terrain contour matching system(TERCOM). The total performance of the TERCOM is almost determined by the height-measuring algorithms embedded in the radar altimeter. When facing a complex terrain area with a large degree of fluctuation, the traditional radar altimetry height-measuring algorithm performance will be...
The oral-nasal flow signal is an important physiological signal of speech, this paper based on the framework of traditional phonetics research, designed and realized the acoustic analysis platform for nose and mouth in the Matlab environment, proposed a set of nasal flow signal parameters such as: the energy of oral sound and nasal sound, duration, nasalance, formants of oral sound and nasal sound,...
This paper introduces a basic structure of information integration system firstly and then proposes a multi-agent based information integration model called node system. Establish a message set for this model and finally give an example of interaction in this system. With high flexibility, this model can be well applied to the environment where the organization structure and business process need...
By analyzing the problem of the current monitoring system, the design solutions of the integrated remote monitoring system based on Internet / GPRS is proposed. The system is integrated multiple monitoring ways and it can monitor multiple locations simultaneously. By phone software, short message and Web browser, users can view video, temperature and humidity, smoke, infrared intrusion and other information...
With the fact that the information exchange has been increased drastically and rapidly, data integration systems have been received attention over past ten years. The main goal to these systems is to provide to a common source, like a database, over a vast of multiple, disparate information and repositories, including databases, object stores, knowledge base, file systems, digital libraries, information...
The growing popularity of the World Wide Web is placing tremendous demands on the Internet. The world wide can be considered as a large distributed information system that provides access to shared data objects. As one of the most popular applications currently running on the Internet, the World Wide Web is of an exponential growth in size, which results in network congestion and server overloading...
In this paper, it studies on the service platform management module. Through JMX technical analysis, it expounds the basic concepts and JMX technology and introduces these characteristics of technology. The overall design includes position and data process, technical feasibility analysis of the service support platform module in the system structure. The paper introduces various modules, and detailed...
Embedded operation system is unnecessary for all the embedded system whose structure and function are simple. In this case all drivers of hardware must be written by programmers. In order to increase the portability and reusability of the hardware design and the software design, this paper proposes the concept of Hardware Building Block (HBB) and Software Building Block (SBB). HBB is divided into...
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