Network addressing is a traditional problem in communications *** addressing which can fully reflect the characteristics of Wireless Sensor Network will provide good support for the design of network routing and manag...
详细信息
Network addressing is a traditional problem in communications *** addressing which can fully reflect the characteristics of Wireless Sensor Network will provide good support for the design of network routing and management *** location information which is important in most of WSN application can be used to simplify routing policy,and is also supported by *** this paper,we propose a location-based IP addressing *** assume that nodes in Wireless Sensor Network know their current physical location;thus,this location information can be exploited to facilitate the generation of Location-based IP *** paper describes Location-based IP addressing architecture for WSNs multicast and unicast within a local or metropolitan environment using two-dimensional address structures and analyzes the implementation in 6Lo WPAN.
In safety critical area, even the slightest error of the operating system could lead to a significant property damage or casualties. As a result, the safety of the RTOS (Real Time Operating System) must be improved. R...
详细信息
In safety critical area, even the slightest error of the operating system could lead to a significant property damage or casualties. As a result, the safety of the RTOS (Real Time Operating System) must be improved. Rushby etc. have done lots of research on safety kernel. Multi-core processor is developing rapidly. This paper presents that the safety of real time system can be improved with a multi-core processor running a main operating system and a separated safety kernel. In addition, this paper gives a simple implementation and verifies its feasibility on MPC8641D.
Building a 3D geological model from field and subsurface data is a typical task in geological studies involving natural resource study. Constructing volume from surface model is an important step of the whole modeling...
详细信息
Building a 3D geological model from field and subsurface data is a typical task in geological studies involving natural resource study. Constructing volume from surface model is an important step of the whole modeling process. In this paper, we present an efficient and robust approach based on the spatial topology to construct volume from surface model even with non-manifold boundary representation. This algorithm finds the surrounding surface of the volume by traversing the stratigraphic binary tree which indicating the spatial topology relation. Our algorithm meets the demanding requirements of interactive model editing and also can be used at numerical simulation. Results from field data modeling illustrate that the proposal method is effective and efficient.
Network addressing is a traditional problem in communications network. IP addressing which can fully reflect the characteristics of Wireless Sensor Network will provide good support for the design of network routing a...
详细信息
Network addressing is a traditional problem in communications network. IP addressing which can fully reflect the characteristics of Wireless Sensor Network will provide good support for the design of network routing and management protocols. The location information which is important in most of WSN application can be used to simplify routing policy, and is also supported by IPv6. In this paper, we propose a location-based IP addressing protocol. We assume that nodes in Wireless Sensor Network know their current physical location;thus, this location information can be exploited to facilitate the generation of Location-based IP address. This paper describes Location-based IP addressing architecture for WSNs multicast and unicast within a local or metropolitan environment using two-dimensional address structures and analyzes the implementation in 6LoWPAN.
Biclustering of DNA microarray data that can mine significant patterns to help in understanding gene regulation and interactions. This is a classical multi-objective optimization problem (MOP). Recently, many research...
详细信息
The single precision in the computer is composed of two parts: the mantissa and the exponent. which are expressed by the limited binary bits. During adding on the single precision, the smaller one should shift to line...
详细信息
To meet the complex and variable characteristics of spacecraft testing business, and to increase the expandability of automated testing system, this paper proposed an architecture of spacecraft test executing system w...
详细信息
The separate development between the storage system and scientific application has hidden most of internal implementation strategies of the storage system from the scientific application designers. This would wors...
详细信息
The separate development between the storage system and scientific application has hidden most of internal implementation strategies of the storage system from the scientific application designers. This would worsen the existing I/O bottleneck problem of most scientific applications to some extent To address this problem, this study chooses the matrix and its parallel out-of-core product algorithm to study the interactions between the applications and the parallel storage system. Especially, the data distribution and access interfaces of the matrix are analyzed and optimized firstly. Then, the communication among processes are incorporated into the parallel out-of-core matrix multiplication algorithm to reduce its disk access times. Experiments show that the proposed optimizations can reduce the time spent in accessing data from disk and accelerate the parallel out-of-core matrix product.
Increasingly, software needs to dynamically adapt its structure and behavior at runtime in response to changing conditions in the supporting computing, network infrastructure, and in the surrounding physical environme...
详细信息
Increasingly, software needs to dynamically adapt its structure and behavior at runtime in response to changing conditions in the supporting computing, network infrastructure, and in the surrounding physical environments. By high complexity, adaptive programs are generally difficult to specify, verify, and validate. Assurance of high dependability of these programs is a great challenge. Efficiently and precisely specifying requirements and flexible model checking for adaptation are the key issues for developing dependably adaptive software. This paper introduces a formal model for adaptive programs which have different behavioral modes. We consider that adaptive programs have two behavioral level, functional behavior and adaptation. state machine is used to describe functional behavior in different modes and mode automata is proposed for adaptations. Specifications of adaptive programs are classified into three categories, local, adaptation and global properties from their different scope of dynamic adaptation. To specify and verify specifications on our model, We propose the Mode-extended Linear Temporal Logic (mLTL) and its model checking approach. mLTL extends Linear Temporal Logic (LTL) by adding mode related element and enables describing properties on different modes. Our formal model and mLTL formulae are translated to SMV language and verified in NuSMV model checker.
暂无评论