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Mesh Client (MC) may be frequently move from the current SMAP to another SMAP in the Wireless Mesh Networks (WMN). The most of the present research papers on WMN assume that the MC is static or quasi static. However, MC may constantly move actually, which connection interruption and packet loss may occur. To solve these problems this paper presents a mobility support strategy for WMN, which consists...
The passive terminal simulator of IEC 60870-5-104 protocol is important for developing and validating the protocol master terminal. But there is indeed a phenomenon now that the simulator is implemented with traditional technology and it is not a complete entity usually because economic benefit can't be directly produced by it. Here a simulator is presented by us and it is mainly composed by a protocol...
Data gathering is a major function of many applications in wireless sensor networks (WSNs). In this paper, An Effective Data Gathering scheme for heterogeneous energy WSNs (EDGA) is proposed. EDGA achieves a good performance in terms of lifetime by minimizing energy consumption for in-network communications and balancing the energy load. EDGA adopt a simple but efficient method to solve the area coverage...
Traditional IDSs have take network factors and distributed environment into account, but the conception of real Distributed-IDS is not so strong. This paper introduces a modified federated peer to peer architecture that can be implement easily. With the help of multicast reflector and modified shaker protocol embedded inside, the suggested scheme can perform better intrusion detection by sharing information...
In the confidential computing issues of scientific computing, the confidential computing of matrix factorization is still no fruit home and abroad. This paper using Data perturbation assumption and Oblivious Transfer 1 out of k protocol, successfully construct confidential computing protocols of matrix general factorization and QR factorization. On the model of semi-honest, it can meet the confidentiality...
Multipath streaming protocols have recently attracted much attention because they provide an effective means to provide high-quality streaming over the Internet. However, many existing schemes require a long start-up delay and thus are not suitable for interactive applications such as video conferencing and tele-presence. In this paper, we focus on real-time live streaming applications with stringent...
Data gathering is a major function of many applications in wireless sensor networks (WSNs). In real world applications, it is unrealistic to guarantee all sensors have the same energy because they have different energy consumption. Moreover, sensor redeployment also results in the heterogeneous energy capacities. In this paper, An effective data gathering scheme for heterogeneous energy WSNs (EDGA)...
With more and more demands for various network services, there are many kinds of value added services provided by different service providers. These services overlap with each other and can't operate for each other. Grid service is a new progress, which basic premise is service. Grid service itself is platform-independent and has good interface for communicating with each other. For gridifying teleco-services...
This paper designs an assembly valve controller based on DeviceNet fieldbus. This controller communicates with the PLC fieldbus communication module, transmits the control signal of assembly valve with twisted pair lines, which economize the cables and implements intercommunication between assembly valve and upper managing layer.
In this paper, an almost peer-to-peer (AP2P) clock synchronization protocol is proposed. AP2P is almost peer-to-peer in the sense that it provides the desirable features of a purely hierarchical (client/server) clock synchronization protocol while avoiding the undesirable consequences of a purely peer-to-peer one. In AP2P, a unique node is elected as a leader in a distributed manner. Each non-leader...
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