Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Wireless sensor networks (WSN) continuously enhance processing capabilities and miniaturization. However, there exists a design gap to energy and bandwidth availability. Especially battery technology cannot keep pace with demands of novel versatile services. A common approach for conserving channel capacity and energy is optimizing power-aware routing and different kind of duty cycling (DC) and harvesting...
Routing in Wireless Mesh Algorithm is concerned with finding “good” source destination paths and has been an active research area since many years. Much of the work is focused on the improvement of global resources, or on the performance of individual transfers. Either case, the routing problem can be casted as a multi-objective with objectives such as load-balancing, end-to-end delay, and path capacity...
Low Earth Orbit (LEO) satellite networks are expected to provide a variety of multimedia applications. In order to satisfy different QoS requirements and optimize utilization of network resources, a novel traffic classification routing algorithm (TCR) is proposed. The key technique of TCR is investigating the traffic classification link-cost metrics (TCM) for different traffic classes, which selects...
This paper presents the study of an access point (AP) deployment strategy which aims to reduce the energy expenditure of ubiquitous motorway network coverage while ensuring Quality of Service (QoS) requirements are maintained at acceptable levels. For this reason, we, in this paper, study the consumption of energy in a scenario where three operational APs are deployed on a motorway with and without...
A novel routing architecture that balances incoming traffic over the Agile All-Photonic Network (AAPN) is proposed. The architecture is based on the adaptive highest random weight (Adaptive HRW) algorithm proposed to design load balanced internet routers. It extends the adaptive HRW algorithm by assigning balancing weights to each source-destination edge node pair in the network. The weights are adapted...
This paper presented a fast fasten control algorithm (2FCA) in wireless sensor networks for information processing and transmitting. Using anycast technology, 2FCA can fast fasten broken routing path, which will decrease failure delay and increase packets' success rate. In the algorithm, it restricts participant nodes to save scarce energy and bandwidth resource, and then prolongs network's lifetime...
In order to meet the overwhelming demands of content retrieval for mobile end users, the community effort has been made on designing next-generation Internet from a clean slate. In this paper, we present the design and performance evaluation of Integrated Caching, in which we assume each router on the Internet can cache contents that pass by and reply to content requests with its local copy. This...
Most previous work on spectrum sharing in the cognitive radio (CR) networks did not take into account the influence of node mobility on link available time as well as the spectrum heterogeneity. In this paper, a spectrum sharing algorithm based on spectrum heterogeneity is presented for centralized CR network, meanwhile the individual CR users are free to be mobile. A prediction model of channel usage...
In this paper, Service Boundary Line approximation method is proposed to improve the accuracy of aggregated link state information in transport networks that conduct hierarchical QoS routing. This method selects the main link state information in the network and transports the data to the external networks together with the aggregation information, reducing information distortion caused from the loss...
Lifetime is the most important concern in wireless sensor networks due to limited battery power of sensor nodes. In this paper, we focus on designing an energy-efficient and energy-aware routing algorithm, LLR, to increase the operational lifetime of multi-hop wireless sensor networks in the presence of unreliable communication links. Our proposed protocol utilizes a parameter, Broadcasting Delay,...
Wireless sensor networks (WSNs) have recently emerged as suitable data collection tools for both military and civil applications. In an indoor factory monitoring environment sensor relocation and/or addition are necessary with reorganization of production lines and/or starting of new production lines. Due to memory, processing, etc. constraints of the wireless nodes these addition and relocation affect...
The paper presents the comparative study and analysis of buffering in Goback2 network. The performance at the destination node by applying different buffering capacities at the routers is demonstrated. The results using NS2 simulator are produced. It can be concluded that the selection of appropriate type of buffering helps in controlling the congestion and the packet drops at the link node.
In order to construct the highway networks, the road tunnels become an inevitable deign to accommodate physical environment elements (e.g., mountains and rivers) in the world. For the recent constructed tunnels, the communication system within the tunnel is planed and designed ahead of time. However, the cost to build and maintain a complete communication system for existing tunnels may not be a cost...
This paper proposes a simple path diversity algorithm (SPDA) for Interdomain routing. The SPDA uses source routing to find an alternate path from a source to a destination, and allows flexible division of traffic over the best and alternate path. The SPDA comprises three steps. First, the BGP protocol is extended to allow the BGP routing table to save the multiple paths for any destination. Second,...
Low Extra Delay Background Transport (LEDBAT) congestion control algorithm is designed to address the unfairness problem of TCP aggravated by applications that use multiple TCP connections for data transfer. LEDBAT operates under the assumption that the queue delay at the access router of the bottleneck link will be the primary varying contributor to end-to-end one-way delay. However this assumption...
Delay Tolerant Network (DTN) is a network in which end-to-end connectivity may not be guaranteed because of the frequent and long duration partitions. SMART routing, which is a selective controlled-flooding scheme, utilizes travel companions of the destinations and improves the delivery opportunities, but its flooding overhead can be further controlled. In this paper, we propose A-SMART routing which...
Combining LEO satellite's advantage on transmitting real-time information with GEO satellite's big computing ability, this paper proposes a Snap-based Autonomous Routing Algorithm for GEO_LEO satellite networks. The algorithm utilizes the connectivity rules of inter satellite link to partition network' topology and compute the routing table. GEO satellites can recount routing table for failure region...
In most of the indoor factory monitoring system sensor relocations and reorganizations are necessary with reorganization of production lines and/or starting of new production lines. These relocations and/or additions sometime make congestion in some area of the network and difficult to achieve online expansion. As a result, in the dynamic changing environment the online expansion is a challenging...
This paper examines the possible uses of different market mechanisms for resource allocation at different levels of Wireless Sensor Network (WSN) architecture. The goal is to maximize the Value of Information (VoI) for WSN users. We discuss three different levels of WSN architecture. The lowest level focuses on individual nodes and their basic functions of sensing and routing. We give an example showing...
Today's Internet is a massive, distributed network which continues to grow in size as globalization takes major role in everyone's life. The problem is complicated by the fact that one cannot rely on the cooperation of individual servers and routers to aid in the collection of network traffic measurements vital for these tasks. Packet Forwarding Priority can have a significant impact on the performance...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.