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.
On most supercomputers, except some torus network based systems, resource managers allocate nodes to jobs without considering the sharing of network resources by different jobs. Such network-oblivious resource allocations result in link sharing among multiple jobs that can cause significant performance variability and performance degradation for individual jobs. In this paper, we explore low-diameter...
The Prophet routing algorithm is a multi-copy algorithm which is based on historical information and transitive probability, which selects the relay node with a high probability to encounter the destination node. However, the selection of a relay node does not consider the current congestion level of node. Even if the current relay node has a high delivery probability to the destination node, it may...
Named Data Networking is a new data centric kind of communication network. This paper shows the study about NDN network and applies this architecture over Vehicular ad-hoc networks so that performance of network improves and communication becomes faster. At the end of simulation results are discussed in the form of packet delivery ratio, throughput, good put, routing overhead and various network parameters...
Many common DTN routing protocols are replication-based, which have relatively good performance in terms of message delivery ratio but high overhead, and leave the issue of garbage collection open. In this paper, we propose Named Data Distance Routing (NDDR), a named data based DTN routing approach which makes routing decisions for named data based on topological distance information. This helps to...
Many IP address lookup approaches employ Bloom filters to obtain a high-speed search performance. Especially, the search performance of trie-based algorithms can be significantly improved by adding Bloom filters, because Bloom filters can determine whether a node exists in a trie without accessing the trie. The false positive rate of a Bloom filter must be reduced to enhance the lookup performance...
The built-in caching capability of future Named Data Networking (NDN) promises to enable effective content distribution at a global scale without requiring special infrastructure. The aim of this work is to design efficient caching schemes in NDN to achieve better performance at both the network layer and application layer. With the specific objective of minimizing the inter-ISP (Internet Service...
This paper present the parallelization of firefly algorithm for permutation routing in baseline multistage interconnection network. The proposed parallel firefly algorithm employs a self routing approach to route the permutation in baseline network. The objective of this paper is as follows (i) to improve serial firefly algorithm to parallel one for better utilization of multi core/ many core processor...
Survivable design of cross-layer networks, such as the cloud computing infrastructure, lies in its resource deployment and allocation and mapping of the logical (virtual datacenter/IP) network into the physical infrastructure [cloud backbone/wavelength division multiplexing (WDM)] such that link or node failure(s) in the physical infrastructure would not result in cascading failures in the logical...
There are several groups of routing algorithms in dynamically changing networks developing every year. We introduce an additional parameter “Battery Life decrease” in the existing Q-Routing protocol. The Battery Life is reduced in direct proportion to the number of packets transmitted to the node. The efficiency of the Optimized Battery Life Q-Routing protocol is estimated by total loss of network...
This paper presents a hybrid Simulation based Optimization (SbO) approach to solve job shop scheduling problems. SbO structure for classical job shop scheduling introduced by [6] is extended for flexible job shop scheduling problem (FJSSP). Performance of SbO is bench-marked in terms of number of decision variables, constraints, objective value and computational time against various Mixed Integer...
User demand for content has become more evident and content service (text messages, video on demand) has become the main network service. Thus, the Content-Centric Networking (CCN) has become the research focus of next-generation Internet architecture. However, the requirements of supporting content provider mobility are not considered. To solve this problem, we propose proactive caching of vital...
Appropriate cluster head selection process in hierarchical cluster based routing algorithms is vital to make the wireless sensor networks energy efficient. This paper suggests a hybrid cluster head selection method with the parameters Location centrality and Nodes' lingering energy on the fixed clusters. The simulation outcome illustrates that the proposed algorithm is good at load balancing with...
InfiniBand is the de facto networking technology for commodity HPC clusters and has been widely deployed. However, most production large-scale InfiniBand clusters use simple routing schemes such as the destination-mod-k routing to route traffic, which may result in degraded communication performance. In this work, we investigate using the OpenFlow-style Software-Defined Networking (SDN) technology...
In this paper, we aim to implement an urban network-level traffic routing scheme for autonomous vehicles to mitigate congestion in urban areas. We first present an implementation of a region-based dynamic traffic model. Subsequently, we present an innovative predictive routing approach for autonomous vehicles, dynamic forecast routing, and apply it on a set of homogeneous regions, making use of Urban-scale...
We present a simulation-based study of the impacts of channel switching overhead on the performance of multicast in multi-channel multi-radio wireless mesh networks (MCMR WMNs). We study how channel switching overhead affects the performance metrics such as packet delivery ratio, throughput, end-to-end delay, and delay jitter of a multicast session.
The VANET (Vehicular Ad hoc Network) is a collection of mobile nodes forming a temporary network on variable topology, operating without base station and without centralized administration. The characteristics of VANET network that distinguishes it from other ad hoc networks, such as high mobility and communication with the infrastructure to support security or comfort applications, have prompted...
NoC router provides efficient routing operation in the SoC board. It produces more delay to find the priority, which comes from various input channels and more area is consumed in unidirectional router. Also if any path failure occurs, it cannot route the data through other output channel. To address this problem, a novel bidirectional NoC router with and without contention is proposed, which offers...
Much prior work has demonstrated that the underlying network topology of communication networks is highly relevant to the intended communication performance of the networks. For reliable and efficient traffic transmission, the traffic load distribution in the network should be uniform and the average data transmission distance should be short. In this paper, we aim to find the optimal network topology...
Sensor networks are used to collect information from a monitored area and to transfer it to the coordinator node. To ensure the trouble-free operation, network elements require high fault tolerance to intentional and unintentional destructive influences. The article discusses the problem of simulation of changes of performance network under the influence of attacks and the problem of estimation of...
Sensor networks are used to collect information from a monitored area and to transfer it to the coordinator node. To ensure the trouble-free operation, network elements require high fault tolerance to intentional and unintentional destructive influences. The article discusses the problem of simulation of changes of performance network under the influence of attacks and the problem of estimation of...
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.