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Mechanical metamaterials inspired by the Japanese art of paper folding have gained considerable attention because of their potential to yield deployable and highly tunable assemblies. The inherent foldability of origami structures enlarges the material design space with remarkable properties such as auxeticity and high deformation recoverability and deployability, the latter being key in applications...
Origami foldability, naturally realizable at the micro‐ and nanoscale, provides a pathway to enlarge the design space of mechanical metamaterials. In article number 2002229, Glaucio H. Paulino, Horacio D. Espinosa, Sridhar Krishnaswamy, and co‐workers design and fabricate microscale 3D multifunctional origami‐architected metamaterials and reveal their unique mechanical properties. Such metamaterials...
The technological advancements in wireless communication systems enable mobile users to leverage different radio interfaces (e.g., cellular and WiFi) for concurrent data transmission. However, the existing transmission schemes do not seriously consider the problem of real-time video multicast to a cluster of co-located multihomed mobile devices. Conventionally, each client fetches the video streaming...
For Software Defined Network(SDN), security is an important factor which affects its large-scale deployment. The existing security solutions for SDN mainly focus on the controller itself, which has to handle all the security protection task by using the programmability of network. It will undoubtedly bring the heavy burden to the controller. More devastating, once the controller itself is attacked,...
In this paper, we focus on selecting targeted number from private sensory data in the software-defined wireless sensor networks and propose a lottery secure multiparty computation protocol for the selection function based on the layered homomorphic encryption and the equivalent transformation of two arrays. We also prove that it is secure via real/ideal simulation paradigm, no matter the Web server...
Attacks against web-based applications is one of the most serious network security threats. At present, web-based attacks are so complex that single detection method is unable to cope with the emerging attacks. Motivated by this, we efficiently merge both misuse detection and anomaly detection, and propose a hybrid model for web log intrusion detection. Considering that a web log request contains...
In this paper, we integrate Hadoop onto IaaS cloud platform and propose a new Dynamic Hadoop Cluster on IaaS (DHCI) architecture. In DHCI architecture, three key modules are designed, they are monitoring module, virtual machine management module and scheduling module. The load information of both physical hosts and virtual machines are collected by the monitoring module, and can be used for designing...
In secret sharing schemes, there is always a special participant called the dealer who controls the distribution of the secret S. It is so powerful that once the dealer is depraved, the whole system is to be paralyzed. In order to solve this problem, it is necessary to cancel the privilege of the dealer and realize completely fair secret sharing. In this paper, we make use of the excellent additivity...
In this paper we propose a new design and prototype implementation of a routing framework in Software Defined Network (SDN) environment. This framework features a logically centralized control plane by which users could easily manage and monitor their network. It exposes APIs to support various routing protocols and algorithms so as to integrate Open Flow network with homogeneous or heterogeneous...
In this paper, we propose a platform named EmuCloud, aiming to provide a test environment for SDN with high fidelity and low cost. EmuCloud is based on IaaS cloud, and the key idea of the platform is to extend the abstract networking resources to provide virtual openflow switch, and combine this new abstraction with existing service (such as computing, storage, authentication, etc.) seamlessly. Compared...
A possible approach to address the ossification of the Internet is to set up multiple virtual networks on top of a single shared physical substrate, and each virtual network can be customized to some specific purposes. However, the current realization of virtualized infrastructure, more specifically, the IaaS cloud and network testbed, suffer from the limited programmability or high cost. To overcome...
Worm propagation modeling has been a significant research subject in the Internet-worm research area. An accurate analytical propagation model allows researchers to study the propagation characteristics and traffic pattern of a worm under different set of worm/network parameters, which is often very hard to realize by simulations. More importantly, it gives us an insight into the impact of each worm/network...
The outbreak of worm is very frequent today. It has great impact on the society infrastructure and people's wealth security. A large number of experts have devoted themselves to the research of worm propagation modeling. Both deterministic model and stochastic model have been used in modeling worm spread. In this paper, we analyze the worm functional structure, and then propose a deterministic worm...
Multimedia applications, such as streaming media, are bandwidth adaptive but have stringent jitter, delay and packet loss requirements. Especially during the user movement, packets may get lost and congested in the re-routing caused by handovers. In this paper, we propose an end-to-end Multi-path Adaptive Transmission Rate Adjustment Mechanism (MATRAM) for transport layer seamless handover for streaming...
In this paper, a novel quality of service (QoS) prediction framework is proposed to accommodate different applications with various QoS requirements. The purpose of the proposed structure is to estimate, given the QoS requirements of different applications, how many of them can be satisfied according to the predefined QoS level and how many of them have to be rejected or accepted under lower level...
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