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.
Due to the increased demand for internet services, the challenges that large data centers must handle are bigger. Therefore, in recent years the development of networks defined by software (SDN) has caught the attention of the scientific community, mainly because of the flexibility it presents in its model of centralized management, which facilitates the development of solutions according to demand...
This paper quantifies the difference in resource demand between modern and classic NoC workloads. In the paper, we show that modern workloads are able to better utilize higher numbers of VCs and smaller C factors in order to attain performance and energy efficiency. This is because of the high throughput and possible local congestions in their traffic pattern. As a result, such workloads are more...
To achieve high throughput, core count in compute accelerators such as General-Purpose Graphics Processing Units (GPGPUs) increases continuously. The communication demand of these cores boosts the demand for a low-latency packet switched network. As packet latency is mainly composed of per-hop latency, contention latency and serialization latency, a favorable Network-on-Chip (NoC) design should efficiently...
The increasing use of wireless technologies for the implementation of mesh networks has led to the emergence of various types of applications. The reduction in cost, ease in deployment and flexibility are the main factors that make wireless mesh network increasingly popular. The ease of setup, mobility and extended reach are the added advantages of this topology. This paper gives a detailed explanation...
Overlay solutions of SDN-based networks became very popular. Controller as a centralized management devices gather information about network topology and current network state. Overlay network have a lot benefits however the using of classical traffic engineering principles for traffic management in Software-Defined Network is becoming problem. The physical network does not automatically adapt to...
Network on a chip(NOC) is a new kind of communication method on a chip, which is evolved from system on a chip(SOC), learning from computer network. It is an important component of the multi-core technology. The network on a chip provides a new way to communicate, and it performs better than the original system on a chip based on bus. As the size of system on a chip expanded, the number of nodes in...
The Wireless Network after Next (WNaN) radio is a multi-transceiver multi-frequency mobile ad-hoc network system that features four independent frequency agile transceivers and uses a variation of Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA). Utilizing WNaN's multiple transceivers, dynamic frequency assignment algorithm, and varying the hello packet interval can help alleviate the increased...
In this paper a novel algorithm is proposed for the purpose of load balancing for SDN-based datacenters. Mininet emulator was utilized for the purpose of emulating the proposed system, the suggested algorithm was added to the POX controller. To evaluate our algorithm, we simulated a datacenter with a Fat-Tree topology (k=4). The algorithm was proposed to dynamically balance the load by means of re-routing...
A simple scheme to implement dedicated path protection in Elastic Optical Networks is proposed and evaluated under dynamic traffic conditions. It consists in splitting the spectrum available in the network links in two bands used respectively for working and backup traffic. These bands are conveniently sized taking into account the network topology and the routing constraints. When the band dedicated...
IPv4 and IPv6 protocol are incompatible due to their different header structure; therefore no direct communication exists between them. For the two protocol to coexist, IETF proposed three possible solutions; Dual Stack, translation and tunnelling. This paper evaluates the performance of tunnelling and dual stack as they are the most deployed techniques. 6to4, ISATAP and 6RD were the three automatic...
Linear network coding (LNC) has great advantages in optimizing throughput, balancing network load, increasing robustness, etc. Since the coded data packets transmitted in the network are linear combinations of original data packets, the attacker cannot decode to obtain the original data when it cannot acquire enough coded data packets. Therefore, LNC can also provide efficient information security...
This paper addresses an energy efficient network topology management strategy which exploits the path diversity in a dual-hop backhaul network in order to lessen the power consumption by switching as many underutilized base stations as possible to a dormant mode. This scheme dynamically tunes the various states of the relay nodes and aggregation points in a dual-hop setup to meet a trade-off between...
An Artificial Neural Network has been proposed as predicting the performance of the Software Defined Network according to effective traffic parameters. Those used in this study are round-trip time, throughput and the flow table rules for each switch, POX controller and OpenFlow switches, which characterize the behaviour of the Software Defined Network, have been modelled and simulated via Mininet...
This paper proposes KAR (Key-for-Any-Route), a new intra-domain resilient routing system in which edge-nodes set a route ID to select any existing route as an alternative to safely forward packets to their destination. In KAR routing system, a route is defined as the remainder of the division between a route ID and a set of switch IDs along the path(s) between a pair of nodes. KAR-enabled switches...
Since traffic diversity and volume increase with growing popularity of mobile applications, there is the strong need to manage the traffic carried by networks. Software defined networks can simplify network management while enabling new services by employing traffic management including routing whose goal is to maximize the given utility while satisfying capacity requirements. In this paper, we propose...
In this paper, we analyze a shared access network with one primary device and randomly distributed smart objects with secondary priority. Assuming random traffic at the primary device and saturated queues at the smart objects with secondary priority, an access protocol is employed to adjust the random access probabilities of the smart objects depending on the congestion level of the primary. We characterize...
In recent days, more complicated interconnection topologies have been replaced with previously simple topologies that also exhibit high performance. x-Folded TM network is a TM network that is folded according to the imaginary x-axis in interconnection networks. For a x-Folded TM network, there is a reduction in the average distance and diameter which corroborates the efficient performance. Also many...
Data networks are experiencing an unprecedented growth in traffic resulting in a multitude of challenges including high network congestion, latency, and packet loss rates. These challenges greatly affect the performance of the network and have a drastic impact on the Quality of Service (QoS) for various applications. In order to reduce network congestion and in turn, maintain the desired QoS, an adaptive...
The advancements in emerging interconnects for Networks-on-Chip (NoCs) brings with it promising solutions to integrate single-hop long-range high-bandwidth on-chip links to achieve enhanced network performance. The use of these lie in the design of modern heterogeneous systems with increasing number of processing blocks, which may include application specific unconventional topologies. In this work,...
Throughput of wireless packet transfer generally depends on the signal strength of wireless communication. The architecture of Wireless Distribution System (WDS) in an IEEE 802.11-based environment can avoid the decline of wireless signals and keep the data packet throughput by delivering packets among access points. This paper focuses on WDS and proposes an algorithm of Maximum Independent Set (MIS)...
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.