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As a conventional MAC control protocol for wireless networks, IEEE 802.11 DCF hasn't taken account into the requirement, which TCP/UDP hybrid stream access needs for MAC frame length. The TCP/UDP hybrid stream's transmission delay would increase significantly, that always generate failure of TCP stream transmitting. This paper proposes an improved IEEE 802.11 DCF protocol and theory model based on...
In this paper, the H∞ state estimation problem for networked systems with Markov interval delay characteristic is investigated. A Markov chain is introduced to describe the delayed networked systems, considering the difficulty of obtaining the ideal knowledge of all transition probabilities, and a Markovian jump systems model with partially unknown transition probabilities is established. Based on...
Different from the traditional military network model, this paper proposes a new Operation System of Systems (OSoS) model—FINC-E Model (Force, Intelligence, Networking, and C2, Extended Model) which provides the formulization framework for nodes and edges of the OSoS. Secondly, a new index—edge key potential is proposed, which acts as the measurement of the edge's importance, meanwhile the performance...
With the rapid development of our country, the demands of steel, timber and other bulk goods are greatly increased, the transportation becomes even more important and complicated. For the difference of vehicles' loading capacity, in the process of transferring vehicles, it is likely to cause surplus. In this paper, we study on the handling of the surplus bulk goods due to the transferring vehicles...
Operation System of Systems (OSoS) as a new form of modern warfare is proposed, aiming at designing the military organization as a whole to implement the mission. This paper puts forward the organization model of OSoS which including organization task, organization entity and organization relationship. As for the uncertainty of battlefield, this paper makes the structure reorganization analysis and...
The cognitive routing can collect the network information, analyze the information and make the routing decision. A multi-strategy cognitive routing will choose the routing strategy adaptively by different network environment. In this paper, a cognitive multi-strategy routing with QoS constraint and load balance is proposed. If the payload of network is light, parameters of QoS performance, such as...
Nanomanipulation inside a scanning electron microscope (SEM) has been employed to maneuver and characterize nanomaterials. Despite recent efforts toward automated nanomanipulation, it is still largely conducted manually. In this paper, we demonstrate automated nanomanipulation inside an SEM for a well-structured nanomanipulation task via visual servo control and a vision-based contact-detection method...
Opportunistic networking-forwarding messages in a disconnected mobile ad hoc network via any encountered nodes-offers a new mechanism for exploiting the mobile devices that many users already carry. However, forwarding messages in such a network is trapped by many particular challenges, and some protocols have contributed to solve them partly. In this paper, we propose heterogeneous content-aware...
In mobile ad hoc networks (MANETs), service composition faces severe challenges such as the lack of central server, node mobility and wireless network failure, which are usually not considered in web service composition on Internet. This paper designs and implements an on-demand service composition protocol for MANETs with consideration of quality of service (QoS). Based on the well-known Dynamic...
A novel adaptive scheduling with coordination for the performance improvement of delay-sensitive applications over heterogeneous wireless networks is proposed. It can bring such contributes i) adaptation capabilities at different layers of the protocol stack, and ii) the coordinated scheduling initiation procedure. It uses information from the physical layer and data link layer to determine the appropriate...
Robustness enhancement scheme in Serial RapidIO (SRIO) interconnect is proposed to overcome the performance degradation caused by noise and Electromagnetic Interference (EMI). The main idea of this scheme is the adaptive speed transition and mode conversion. Adaptive speed transition can improve average throughput and reduce delay in high Bit Error Rate (BER) environment. Mode conversion is to conquer...
As the existence of diverse network technologies, QoS signaling is needed to guarantee the end-to-end QoS for users in complex network environment. Compared with the previous QoS signaling with resource reservation, NSIS (next steps in signaling) proposed by IETF is better in flexibility and scalability. This paper proposes a new mobility-aware scheme for QoS NSLP (NSIS signaling layer protocol) in...
As integration of heterogeneous networks has become one of the most important characters for next-generation networks, it becomes a very challenging issue to ensure effective handoff when mobile node moves between different heterogeneous networks. In this paper we propose an effective handoff mechanism based on location information. By processing geographical data (consisting of information about...
For mobile ad-hoc wireless network, the route protocol is very important. This paper proposes a modified CBRP scheme based on the cloud model to improve the performance. And some experiments are conducted, the results show that the ad-hoc network will be lower average end-to-end delay and higher packet delivery ratio with the proposed scheme.
This paper considers the networked control systems whose network-induced delay is likely longer than a sampling period. The continuous time system model with control time-delay is transformed into the discrete time system model with multiple time-delays. Based on the model, a new type full-dimension states observer is designed. A discrete Lyapunov functional method is proposed for the augmented system...
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