The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper, we study the performance of the Greedy Perimeter Stateless Routing (GPSR) [1] and the Greedy Routing for Maximum Lifetime (GRMax)[2] which is our proposal, in wireless sensor networks in random topology and grid topology wireless sensor network. We decide to compare the performance of GPSR and GRMax in different topology of networks using the same simulation environment. Evaluation...
A Wavelength-Aware approach for Translucent design and dynamic routing is presented. Compared to the Wavelength-UnAware worst-case design scenario, up to 100% reduction on OEO interfaces has been found.
A temporary resource reservation mechanism can enhance the performance of a stateless PCE in situations when the TED might not be up-to-date. This paper examines the benefits of such a mechanism by means of simulation.
In delay tolerant networks (DTNs), power management will likely play a critical role in the system design. Because these networks are partitioned in nature, mobility is typically required for data routing. Since nodes must physically move to create links, there can be significant routing delays, and the network must be alive for a long enough time to be of any practical use. Therefore, a power management...
We introduce a high-fidelity simulation model to evaluate the power consumption of computer networks derived from measured data on routers. To this end, we design and use a power consumption profiling system to parameterize the electrical power consumption of network elements in terms of data traffic. A model validation done by comparing simulation outputs for a test case with actual measurements...
Cognitive Radio Networks (CRNs) are emerging as a viable solution for exploiting the available spectrum and solving overcrowding in the operating bands. Several dimensions in the process of identification, management and routing need to be handled to overcome the challenges associated with the management of CRNs. A very important topic in achieving an effective and flexible management solution is...
Data aggregation is an important element in information processing systems, including MapReduce clusters and cyber physical networks. Unlike simple sensor networks, all the data in information processing systems must be eventually aggregated. Our goal is to lower overall latency in these systems by intelligently scheduling aggregation on intermediate routing nodes. In order to understand the potential...
This Paper deeply analyzes and studies the existing problems in the any cast communication models in an IPv6 network and proposes a k-Any cast routing schemes for IPv6 network which are fault tolerance, load balancing, security, and improvement in system performance. In addition, this paper proposes a concrete scheme on how to implement this k-Any cast communication model in an IPv6 network which...
Routing problems based on cooperative transmission for multi-hop wireless Ad hoc network have been studied in this paper. Inspired by Multipoint Relay computation, a cooperative routing algorithm is proposed in Ad hoc network, which select cooperative neighbors for cooperative transmission by checking whether the links between the node and its neighbors are symmetric or not. The performances of the...
In multi-hop wireless mesh network (WMN), hidden node is one of the major problems when IEEE 802.11 DCF is used as a MAC protocol. It causes data packet collisions between the multi-hop links and significantly affects the network performance. In order to avoid this problem, a novel routing scheme is proposed in this paper. It uses a high sensitive sensing function utilized for cognitive radio. The...
This paper develops algorithms to ensure that agents of a mobile micro autonomous system (MMAS) maintain integrity of communication flows as they move to accomplish their task. Due to inherent uncertainties in estimation of wireless channels, we advocate a stochastic approach whereby achievable communication rates of point-to-point links are regarded as random variables with known means and variances...
To meet topology changes causing by the growing web application dynamically,and with Agent of the high degree of flexibility, collaboration, autonomy, and self-adaptive characteristics, this paper discusses a self-adaptive interaction strategy based on Multi-Agents in hierarchy and analyzes an abstract model in which Multi-Agents are divided into the main Agents and sub-Agents in different layers...
In mobile Ad Hoc networks the established path is often disconnected because of nodes mobility, which results in communication discontinuity and adverse effects on real-time services, and a new multi-path routing algorithm based on link lifetime is proposed. This algorithm tries to find more than on stable and independent path to transport packets based on link lifetime. Simulations prove that can...
The Internet can not support mobility and scalability effectively. One of the reasons is the ambiguity of the IP address signification. It has been accepted that the new network architecture needs to separate the locator from its identifier. Identifier is used to present the information source and information sink while the locator is used for routing. It is necessary to use replacement, not encapsulation,...
In this paper, An uneven clustering routing based on ARMA model(UCR-A) was proposed for the "hot spot", and the main ideal is that the entire region is divided into unequal radial level with the base station at the center. Cluster head is chosen based on the residual energy and the relative position. Multi-hop data routing was formed in inter-cluster, and apply ARMA prediction model to the...
Mobile Ad Hoc Networks (MANET) is a kind of network in which all the nodes can move randomly. As a new wireless communication network, MANET has attracted broad attention in recent years. But traditional distributed routing algorithm, which focuses on nodes, is complicated and huge in computation quantity, causes decline in performance of real-timing, throughput, ETE delay, network QoS, and etc. So,...
Research on congestion and phase transition, as an important aspect of network robustness, is helpful in guiding infrastructure construction, such as communication network, power grid, and so on. Based on related works, this paper sets up node model with different processing ability and limited capacity, proposes a traffic-awareness routing strategy with tunable control parameter. The optimal parameter...
In sensor networks, energy and communication bandwidth are strongly constrained resources. A key technique to reduce the use of these resources is data aggregation, whereby the data collected by the nodes are combined during the routing. Aggregation is however limited to very few operators. This paper provides a new use of aggregation techniques, by showing that they can be used to extract high-level...
The selection of high-throughput routes is a key element towards improving the performance of wireless multihop networks. While several routing metrics have been proposed in the literature, it has been shown that link-quality aware metrics can provide significantly higher end-to-end throughput. To date, the online computation of such metrics requires the periodic transmission of probe packets at all...
Application-level message routing mechanisms are crucial to the development of distributed applications and infrastructures that are flexible, adaptable, context-aware and mobile. This paper proposes to use the concept of magnetic fields borrowed from physics in order to enable a self-organizing message routing mechanism. First, a generic model of virtual magnetic fields is presented, then a distributed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.