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Pub/Sub model with the characteristics of loose coupling, fully information sharing, many-to-many communication and flexible resources reorganization is suitable for Message-Oriented Middleware's information exchanging on Telemetry and Command(TT&C) computers. According to the disadvantage of traditional model of message-Oriented Middleware(point-to-point, message queue, shared memory), An architecture...
The proposed routing protocol BQAODV considers link stability, available bandwidth estimation, direction conformity and delay constraint based on AVAODV routing protocol. It selects a highest link stability route which meets available bandwidth, direction conformity and delay constraint during the search for a new route. The simulation results show that BQAODV's data packet loss rate and average end-to-end...
In the recent years, Wireless Sensor Networks (WSNs) have become a great field of interest for scientific community. This kind of network provides a panoply of applications in different areas of human life. However WSNs must ensure the quality of service (QoS) to give the requested performance for the final user. Among different issues presented in the literature to provide high QoS, multipath routing...
Transmission of data in infrastructureless mobile ad hoc network (MANET) is performed by cooperation among nodes which requires devising efficient routing schemes. When there is a possibility of non-cooperative and selfish behaviors of nodes in the network, in order to improve the performance, both trust and energy consumption associated with intermediate nodes should be jointly taken into account...
The Internet is rapidly to the across network domain service delivery platform evolution, at the same time, existing based on the content of the Internet payment method is lack of the guarantee of quality of service. The future of the Internet research, to solve the current issues in the current network is put forward a few promising ideas. Such as, federations across network domain and end-to-end...
Routing and Wavelength Assignment (RWA) is the most concern in wavelength routed optical networks. This paper proposes a novel dynamic RWA scheme inspired by the idea of binary quadratic programming (BQP) formulation for the static RWA problem. Subsequently, a heuristic algorithm namely QP routing and wavelength assignment (QP-RWA) is proposed. In this method, links wavelength occupancy information...
Though the decades of great success the Internet has experienced, it still confronts with many challenges to achieve QoS of various business types. A consensus has been reached that resource allocation presents a tremendously status in such a network bandwidth poor settings. In this paper, we bring the knapsack problem idea into reconfigurable network architecture (RNA), which is proposed with the...
The importance of Ad-hoc network is due to its nature of infrastructure-less and decentralization. In Ad-hoc network some nodes can become a critical spot in the network as they forward the packets to most of their neighbors. These critical nodes can deplete their battery power earlier, because of excessive load and processing for data forwarding. These unbalanced loads turn to nodes failure, network...
Wireless multimedia sensor networks (WMSNs) is one of the hotest topic nowadays which attracts more and more researchers as being an interdisciplinary research interest. Its cost decreases continously due to advances in micro-electromechanical systems, and the proliferation and progression of wireless communications. However, the transmission of multimedia information must satisfy QoS criteria which...
This paper is a first step towards a mathematical and simulative environment to formally model the effect of router/link failures on the dynamics of TCP and UDP packet flows belonging to different end-user services (i.e. http, ftp, mailing and video streaming) transiting through a Service Provider backbone network. Our model takes into account network topology, routing (a simplified version of OSPFv2...
Cognitive Radio Ad-Hoc Network (CRAHN) is an emerging class of mobile ad hoc networks that provides each network node with a list of available channels. It is expected that the available routing protocols and metrics for traditional ad-hoc networks are not suitable for CRAHN in the environment of topology changes and different level of user mobility interference situations. Therefore, to achieve more...
Nodes in ad hoc networks rely on batteries with limited capacity. As result, this imposes constraints on the network lifetime. In order to maximize the network lifetime, routing protocols should deliver traffic in a way that the energy consumption is minimized. This paper discusses the problem of energy saving in QoS multicast routing of ad hoc wireless networks. Our goal is to find a network topology...
With the rapid development of Wireless Sensor Networks (WSNs), besides the energy efficient, Quality of Service (QoS) supported and the validity of packet transmission should be considered under some circumstances. In this paper, according to summing up LEACH protocol's advantages and defects, combining with trust evaluation mechanism, energy and QoS control, a trust-based QoS routing algorithm is...
Datacenters consolidate diverse applications to improve utilization. However when multiple applications are co-located on such platforms, contention for shared resources like Networks-on-Chip (NoCs) can degrade the performance of latency-critical online services (high-priority applications). Recently proposed bufferless NoCs have the advantages of requiring less area and power, but they pose challenges...
Smart Grid (SG), designed to integrate high-speed, reliable, and secure data communication networks to manage the complex power systems effectively and intelligently, uses two-way flows of electricity and information to create a widely distributed automated energy delivery network. One of the main challenges of SGs is routing optimization that the data transmission of power price must be equipped...
With continuous shrinking in the size of deep sub-micron in this million transistor era, the interconnection of these hundreds and thousands of cores on a single chip is still constraint. Providing an efficient communication among these cores is a major challenge in the on-chip domain. Although hierarchical architecture has addressed most of the issues of the traditional approaches like point-to-point...
In mobile ad hoc networks, the quality of service (QoS) guarantees are more difficult when compared with wired networks due to mobility of nodes. The difficulties in the provision of such guarantees have limited the utility of MANETs. The AOMDV (Ad hoc On Demand Multipath Distance Vector) has a better routing protocol for efficient data delivery. In this paper we improve the QoS performance of AOMDV...
Quality of Service (QoS) in Network-on-Chip (NoC) become an important research area. Lately, increasing demands on availability, performance and reliability of Network on Chip connectivity are driving to offer Network connections with QoS guarantees efficiency. However, until now there is no standard method of the Quality of Service (QoS) measurement and less techniques have been used to provide its...
Nodes in Mobile Adhoc NETwork (MANET) are suffered by limited bandwidth and frequent changes in the topology due to node mobility. The nodes participating in the network are powered by limited battery resources and the battery depletion can imply network failure. Although establishing correct and efficient routes is an important design issue in MANET, providing energy efficient routes is a more challenging...
A new Network Coding mechanism in WSNs (Wireless Sensor Networks), which is named COEQ and aims at balancing coding opportunities, energy and QoS, is proposed and analyzed. Implemented on the basis of traditional AODV protocol, COEQ evaluates several metrics of paths comprehensively with TOPSIS method including minimum remaining energy, coding opportunities, QoS and so on, so as to select the optimal...
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