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Based on in-depth research on the characteristics of the current train receiving and departure operations of China's railway stations, the urgent need of traffic standardization, automation and safety control and the status quo of the construction of the traffic command system in China, the overall scheme for the establishment of a TDCS/CTC-based train receiving and departure operation management-control...
Traffic engineering (TE) problem is a central component of the next generation cloud-based wireless networks. In this paper, we study a new resource allocation scheme for effective traffic engineering under practical constraints such as the finite buffer size at each node. To reduce the computational effort required in the existing single-slot TE approaches and to deal with practical hardware limitations...
The cloud service model is spreading into the telecommunications industry, forcing the telecommunications providers to adjust their production models. The network service provider cloud platform, also called as Telco Cloud, utilizing a cloud based production model, is a solution to respond to the changing market forces. The cloud based production model is a new concept in the context of telecommunication...
Android phone manufacturers are under the perpetual pressure to move quickly on their new models, continuously customizing Android to fit their hardware. However, the security implications of this practice are less known, particularly when it comes to the changes made to Android's Linux device drivers, e.g., those for camera, GPS, NFC etc. In this paper, we report the first study aimed at a better...
Currently bus communication technology used extensively in airborne equipment, so most of the test equipment is based on a variety of bus, but in addition to ICD file, the same form of these equipment have the same form. So we designed a portable test system of aero electronic equipment. The system has a simple hardware structure and software design using separate form. The system meets the test requirements...
As size and complexity have increased, formal verification of hardware designs is a challenge to us. This paper presents a case study for verification of a full adder design using the axiom system of Propositional Projection Temporal Logic (PPTL). The paper focuses on the functional verification of the adder. To this end, the syntax, semantics and axiom system for PPTL are briefly introduced. Further,...
In order to solve the compute-intensive character of image processing, based on advantages of GPU parallel operation, parallel acceleration processing technique is proposed for image. First, efficient architecture of GPU is introduced that improves computational efficiency, comparing with CPU. Then, Sobel edge detector and homomorphic filtering, two representative image processing algorithms, are...
There are two problems emerged while multi-core platform become popular in daily life, no matter for high end or low end. The first is how to fully utilize computing resource of these cores without requirement of large modifications of current software design model. The second is about dividing a piece of serial program into parallel program. However, the latter is the responsibility of compiler,...
The need of extensive computing capacity is expanding all the time. Especially in company providing network service, adding servers physically requires much more cost. Also in embedded system, resource is also very limited. That is why virtulization is so popular in research and industry application. A lot of virtulization technique is raised to supply great computing capacity with multiple operating...
Chip multiprocessor (CMP) will become more popular in embedded systems. As clock frequency increases, dependency among core blocks rises, which therefore tends to reduce performance of system and be more unstable. Redundancy is a way to improve the dependability of the system. But the traditional methods cannot make full use of the computing capacity of CMP. In this paper, we propose a new redundancy...
This paper proposes a hardware approach to improving information retrieval efficiency on the vector space model. We design a heterogeneous multicore system, within which auxiliary retrieval-oriented intellectual properties (IP) cores perform term counting as basic operations. Moreover, a memory system is also designed to supply data efficiently. Since term counting is a highly frequent operation in...
Nowadays, boot loader becomes more and more important in system, especially the embedded systems which are widely used in different field. Also, many complicated functions have been and will be integrated into boot loader. However, traditional boot loader in embedded system is located in flash or memory which is much slow. The system-on-a-chip technology provides the scratch-pad memory (SPM), which...
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