scholarly journals Regulating Scheduler (RSC): A Novel Solution for IEEE 802.1 Time Sensitive Network (TSN)

Electronics ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 189 ◽  
Author(s):  
Jinoo Joung
Keyword(s):  
International Standards ◽  
Flow State ◽  
Viable Solution ◽  
Simple Class ◽  
Lower Complexity ◽  
End To End ◽  
Fair Scheduler ◽  
Audio Video ◽  
Better Than ◽  
Deficit Round Robin

Emerging applications such as industrial automation, in-vehicle, professional audio-video, and wide area electrical utility networks require strict bounds on the end-to-end network delay. Solutions so far to such a requirement are either impractical or ineffective. Flow based schedulers suggested in a traditional integrated services (IntServ) framework are O(N) or O(log N), where N is the number of flows in the scheduler, which can grow to tens of thousands in a core router. Due to such complexity, class-based schedulers are adopted in real deployments. The class-based systems, however, cannot provide bounded delays in networks with cycle, since the maximum burst grows infinitely along the cycled path. Attaching a regulator in front of a scheduler to limit the maximum burst is considered as a viable solution. International standards, such as IEEE 802.1 time sensitive network (TSN) and IETF deterministic network (DetNet) are adopting this approach as a standard. The regulator in TSN and DetNet, however, requires flow state information, therefore contradicts to the simple class-based schedulers. This paper suggests non-work conserving fair schedulers, called ‘regulating schedulers’ (RSC), which function as a regulator and a scheduler at the same time. A deficit round-robin (DRR) based RSC, called nw-DRR, is devised and proved to be both a fair scheduler and a regulator. Despite the lower complexity, the input port-based nw-DRR is shown to perform better than the current TSN approach, and to bind the end-to-end delay within a few milliseconds in realistic network scenarios.

scholarly journals STUDY OF A MA16-BASED VERTEX TRIGGER FOR THE CDF EXPERIMENT

1995 ◽  
Vol 06 (05) ◽  
pp. 681-692
Author(s):  
R. ODORICO
Keyword(s):  
Neural Network ◽  
Response Time ◽  
Impact Parameter ◽  
Electronic Components ◽  
The Neural Network ◽  
Viable Solution ◽  
Impact Parameters ◽  
Input Variables ◽  
Better Than

A Neural Network trigger for [Formula: see text] events based on the SVT microvertex processor of experiment CDF at Fermilab is presented. It exploits correlations among track impact parameters and azimuths calculated by the SVT from the SVX microvertex detector data. The neural trigger is meant for implementation on the systolic Siemens microprocessor MA16, which has already been used in a neural-network trigger for experiment WA92 at CERN. A suitable set of input variables is found, which allows a viable solution for the preprocessing task using standard electronic components. The response time of the neural-network stage of the trigger, including preprocessing, can be estimated ~10 μs. Its precise value depends on the quantitative specifications of the output signals of the SVT, which is still in development. The performance of the neural-network trigger is found to be significantly better than that of a conventional trigger exclusively based on impact parameter data.

scholarly journals Analisis Optimasi Kinerja Protokol Routing AODV dan AOMDV dengan Menggunakan Metode RFAP untuk Mencegah RREQ Flooding Attacks pada Jaringan MANET

2019 ◽  
Vol 1 (1) ◽  
pp. 9-18
Author(s):  
Andy Hidayat Jatmika ◽  
I Made Windra Yudistiana ◽  
Ariyan Zubaidi
Keyword(s):  
Destination Node ◽  
Malicious Nodes ◽  
End To End Delay ◽  
Flooding Attacks ◽  
End To End ◽  
Prevention Method ◽  
Prevention Methods ◽  
Bandwidth Capacity ◽  
Route Request ◽  
Better Than

One sector that greatly influences it is in terms of network security. This is due to the characteristics of the MANET network that are dynamic so that the MANET network is very easily disturbed by irresponsible parties. One of the attacks that can occur in MANET network is Route Request (RREQ) Flooding Attacks. In RREQ flooding attacks in the form of fake nodes that are outside the area of the network and broadcast RREQ to the destination node in the network, so that it meets the bandwidth capacity which results in a decrease in quality in determining the route of sending data or information to the destination node. To prevent the occurrence of RREQ flooding attacks, a prevention method for these attacks is required, namely the RREQ Flooding Attacks Prevention (RFAP). This method works by finding nodes that are likely to be malicious nodes then isolated from the network to be restored to normal nodes. This research will optimize the AODV and AOMDV routing protocols by adding RFAP prevention methods and knowing the performance of the two protocols in terms of throughput, average end-to-end delay and normalized routing load. Based on the results of the simulation, that the application of the method RFAP on AODV routing protocol can produce network quality is better than AOMDV protocol, both in terms of throughput, average end-to-end delay and normalized routing load.

Stacked filters

2020 ◽  
Vol 14 (4) ◽  
pp. 600-612
Author(s):  
Kyle Deeds ◽  
Brian Hentschel ◽  
Stratos Idreos
Keyword(s):  
False Positive ◽  
The Core ◽  
End To End ◽  
Core Idea ◽  
Better Than

We present Stacked Filters, a new probabilistic filter which is fast and robust similar to query-agnostic filters (such as Bloom and Cuckoo filters), and at the same time brings low false positive rates and sizes similar to classifier-based filters (such as Learned Filters). The core idea is that Stacked Filters incorporate workload knowledge about frequently queried non-existing values. Instead of learning, they structurally incorporate that knowledge using hashing and several sequenced filter layers, indexing both data and frequent negatives. Stacked Filters can also gather workload knowledge on-the-fly and adaptively build the filter. We show experimentally that for a given memory budget, Stacked Filters achieve end-to-end query throughput up to 130x better than the best alternative for a workload, either query-agnostic or classifier-based filters, and depending on where data is (SSD or HDD).

Does End-to-End Trained Deep Model Always Perform Better than Non-End-to-End Counterpart?

2021 ◽  
Keyword(s):  
Image Processing ◽  
International Symposium ◽  
Fast Track ◽  
Electronic Imaging ◽  
Deep Model ◽  
Image Processing Algorithms ◽  
Processing Algorithms ◽  
End To End ◽  
Better Than

Fast track article for IS&T International Symposium on Electronic Imaging 2021: Image Processing: Algorithms and Systems proceedings.

Multicast Routing Protocols, Algorithms and its QOS Extensions

2005 ◽  
pp. 2036-2041
Author(s):  
D. Chakraborty ◽  
G. Chakraborty ◽  
N. Shiratori
Keyword(s):  
Data Storage ◽  
High Speed ◽  
Multicast Routing ◽  
Multicast Communication ◽  
Delay Jitter ◽  
End To End Delay ◽  
End To End ◽  
Storage Technologies ◽  
New Applications ◽  
Audio Video

The advancement in optical fiber and switching technologies has resulted in a new generation of high-speed networks that can achieve speeds of up to a few gigabits per second. Also, the progress in audio, video and data storage technologies has given rise to new distributed real-time applications. These applications may involve multimedia, which require low end-to-end delay. The applications’ requirements, such as the end-to-end delay, delay jitter, and loss rate, are expressed as QoS parameters, which must be guaranteed. In addition, many of these new applications involve multiple users, and hence the importance of multicast communication. Multimedia applications are becoming increasingly important, as networks are now capable of carrying continuous media traffic, such as voice and video, to the end user. When there is a lot of information to transmit to a subset of hosts, then multicast is the best possible way to facilitate it. This article addresses different multicast routing algorithms and protocols. We have also discussed about the QoS multicast routing and conclude this article with mobile multicasting.

Fluid exchange in skeletal muscle with viscoelastic blood vessels

1987 ◽  
Vol 253 (6) ◽  
pp. H1548-H1556
Author(s):  
J. Lee ◽  
E. P. Salathe ◽  
G. W. Schmid-Schonbein
Keyword(s):  
Experimental Data ◽  
Mathematical Model ◽  
Skeletal Muscle ◽  
Blood Cells ◽  
Constant Pressure ◽  
Tissue Fluid ◽  
Flow State ◽  
Governing Equations ◽  
Fluid Exchange ◽  
Better Than

A mathematical model of capillary-tissue fluid exchange in a viscoelastic blood vessel is presented, and the Landis occlusion experiment is simulated. The model assumes that the fluid exchange is governed by Starling's law and that the protein and red blood cells are conserved in the capillary. Before occlusion, in the steady flow state, the pressure in the capillary decreases from the arterial to venous end due to viscous dissipation. After occlusion a constant pressure is established along the capillary. We assume the capillary to be distensible with viscoelastic wall properties. Immediately following occlusion an instantaneous distension of the capillary occurs. The vessel continues to expand viscoelastically while fluid is filtered for a period of several minutes, until it reaches an equilibrium state. A full numerical solution of the governing equations has been obtained. We use this model to compute the distance variation between two labeled erythrocytes as obtained in the Landis occlusion experiment and compare the results with experimental data obtained recently for the spinotrapezius muscle in our laboratory. The new model can fit the experimental data better than previous models that neglect the distensibility of the capillaries.

Simulated Performance of SCTP and TFRC Over MANETs

2020 ◽  
Vol 16 (2) ◽  
pp. 69-83
Author(s):  
Ali H. Wheeb ◽  
Dimitris N. Kanellopoulos
Keyword(s):  
Multimedia Streaming ◽  
Traffic Load ◽  
Delivery Ratio ◽  
Transmission Protocol ◽  
Streaming Applications ◽  
Simulated Performance ◽  
End To End Delay ◽  
End To End ◽  
The Impact ◽  
Better Than

Mobile ad-hoc networks (MANETs) are composed of mobile nodes communicating through wireless medium, without any fixed centralized infrastructure. Providing quality of service (QoS) support to multimedia streaming applications over MANETs is vital. This paper focuses on QoS support, provided by the stream control transmission protocol (SCTP) and the TCP-friendly rate control (TFRC) protocol to multimedia streaming applications over MANETs. In this study, three QoS parameters were considered jointly: (1) packet delivery ratio (PDR), (2) end-to-end delay, (3) and throughput. Specifically, the authors analyzed and compared the simulated performance of the SCTP and TFRC transport protocols for delivering multimedia streaming over MANETs. Two simulation scenarios were conducted to study the impact of traffic load and node speed (mobility) to their performance. Based on the simulation results, the authors found that the PDR and the end-to-end delay of TFRC are slightly better than those of SCTP in both scenarios. Additionally, the performance of SCTP is significantly better than TFRC in terms of throughput.

Stapled Side-to-Side Anastomosis Might Be Better Than Handsewn End-to-End Anastomosis in Ileocolic Resection for Crohn’s Disease: A Meta-Analysis

2014 ◽  
Vol 59 (7) ◽  
pp. 1544-1551 ◽  
Author(s):  
Xiaosheng He ◽  
Zexian Chen ◽  
Juanni Huang ◽  
Lei Lian ◽  
Santosh Rouniyar ◽  
...  
Keyword(s):  
Crohn’S Disease ◽  
Crohn's Disease ◽  
Meta Analysis ◽  
Ileocolic Resection ◽  
End To End ◽  
Better Than

scholarly journals An Efficient Algorithm for Delay and Delay- Variation Bounded Core Based Tree Generation

2010 ◽  
pp. 202-207
Author(s):  
Manoj Kumar Patel ◽  
MANAS RANJAN KABAT ◽  
Chita Ranjan Tripathy
Keyword(s):  
Upper Bound ◽  
Heuristic Algorithms ◽  
Multicast Tree ◽  
End To End Delay ◽  
Tree Generation ◽  
Core Selection ◽  
End To End ◽  
Better Than ◽  
Delay Variation

Many multimedia group applications require the construction of multicast tree satisfying the quality of service (QoS) requirements. To support real time communication, computer networks need to optimize the Delay and Delay-Variation Bounded Multicast Tree (DVBMT). The problem is to satisfy the end-to-end delay and delay-variation within an upper bound. The DVBMT problem is known to be NP complete. In this paper, we propose an efficient core selection algorithm for satisfying the end-to-end delay and delay-variation within an upper bound. The efficiency of the proposed algorithm is validated through the simulation. The simulation results reveal that our algorithm performs better than the existing heuristic algorithms.

scholarly journals Bamboo particleboards: recent developments

2019 ◽  
Vol 49 ◽  
Author(s):  
Christian Gauss ◽  
Victor De Araujo ◽  
Maristela Gava ◽  
Juliana Cortez-Barbosa ◽  
Holmer Savastano Junior
Keyword(s):  
Value Added ◽  
International Standards ◽  
Raw Material ◽  
Laminated Bamboo ◽  
Viable Solution ◽  
Recent Developments ◽  
Durable Products ◽  
Dimensional Variation ◽  
Support Research ◽  
Value Added Products

ABSTRACT Due to the high dimensional variation of bamboo, the manufacturing of materials such as plywood and laminated bamboo produces a high amount of residues. The production of particleboards could be used to overcome this problem and become a viable solution to reuse the generated waste as a raw material to high value-added products. This study aimed to present an overview of the bamboo particleboard production, as well as the mechanical and physical properties of this material, followed by a review of the advances in its research and development. In general, independently of the resin or bamboo species utilization, several bamboo particleboards meet the mechanical properties requirements of international standards for wood-based medium-density particleboards. The main focus of this study is to provide a review, in order to support research groups interested in using new bamboo-based materials for the development of manufactured durable products.

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