scholarly journals Study of Parallel Algorithms for IP Switches

2019 ◽  
Vol 24 (2) ◽  
pp. 158-163
Author(s):  
Mhnd Farhan
Keyword(s):  
Parallel Algorithms ◽  
High Speed ◽  
Linear Time ◽  
Low Cost ◽  
Cost Effective ◽  
Internet Traffic ◽  
The Other ◽  
The Internet ◽  
Large Capacity ◽  
Internet Connectivity

Abstract Owing to the increase in the internet traffic, any calculation that requires more than linear time would be considered unreasonably moderate for constant applications. One cure is to utilize numerous processors to build up associations in parallel and the other is to construct low cost, high speed, large capacity non-blocking switching architecture. In this paper, our focus is on developing parallel algorithms for routing which will ensure high-speed internet connectivity and at the same time making the system to be cost effective.

Ethernet Passive Optical Networks

2009 ◽  
pp. 482-488
Author(s):  
Mário M. Freire ◽  
Paulo P. Monteiro ◽  
Henrique J.A. da Silva ◽  
José Ruela
Keyword(s):  
Optical Networks ◽  
High Speed ◽  
Low Cost ◽  
Optical Network ◽  
Cost Effective ◽  
Passive Optical Networks ◽  
Multipoint Control ◽  
Upstream Direction ◽  
Working Groups ◽  
Ethernet Passive Optical Networks

Recently, Ethernet Passive Optical Networks (EPONs) have received a great amount of interest as a promising cost-effective solution for next-generation high-speed access networks. This is confirmed by the formation of several fora and working groups that contribute to their development, namely the EPON Forum (http://www. ieeecommunities.org/epon), the Ethernet in the First Mile Alliance (http://www.efmalliance.org), and the IEEE 802.3ah working group (http://www.ieee802. org/3/efm), which is responsible for the standardization process. EPONs are a simple, inexpensive, and scalable solution for high-speed residential access capable of delivering voice, high-speed data, and multimedia services to end users (Kramer, Mukherjee, & Maislos, 2003; Kramer & Pesavento, 2002; Lorenz, Rodrigues, & Freire, 2004; McGarry, Maier, & Reisslein, 2004; Pesavento, 2003). An EPON combines the transport of IEEE 802.3 Ethernet frames over a low-cost and broadband point-to-multipoint passive optical fibre infrastructure connecting the optical line terminal (OLT) located at the central office to optical network units (ONUs) usually located at the subscriber premises. In the downstream direction, the EPON behaves as a broadcast and select shared medium, with Ethernet frames transmitted by the OLT reaching every ONU. In the upstream direction, Ethernet frames transmitted by each ONU will only reach the OLT, but an arbitration mechanism is required to avoid collisions. This article provides an overview of EPONs focused several issues: EPON architecture, multipoint control protocol (MPCP), quality of service (QoS), and operations, administration, and maintenance (OAM) capability of EPONs.

Refuting objections to a Global Rural Network (GRNet) for developing nations (originally published in August 2004)

First Monday ◽  
2007 ◽  
Author(s):  
Larry Press
Keyword(s):  
Rural Areas ◽  
High Speed ◽  
Low Cost ◽  
Developing Nations ◽  
Appropriate Technology ◽  
Grand Challenge ◽  
Sustainable Business ◽  
Internet Service ◽  
Developing Nation ◽  
Internet Connectivity

In a previous article, we suggested that it is now time to undertake a Grand Challenge project: providing Internet connectivity for every village in every developing nation. Doing so would require perhaps a decade and billions of dollars for design and planning, procurement, installation and operation. Critics object that such a project would not be worth the effort and investment. This article considers nine objections to such an undertaking. 1. Internet connectivity would be nice, but it is not a high priority. 2. Internet service has been offered in rural areas of developing nations, and there is little demand for it. 3. There are no applications of interest or value to illiterate rural people who do not speak English. 4. There is no sustainable business model. 5. Developing nations lack the people and resources to do research. 6. Even if the world community can justify sponsoring the research leading to a concrete backbone plan, developing nations cannot afford to implement it. 7. Villagers cannot afford to use the network even if the backbone transport and connection are free. 8. Developing nations cannot afford high–speed connectivity — low–cost store–and–forward technology is more appropriate technology for a poor, developing nation. 9. We should focus on cities where there is already demand, not rural areas. We discuss each of these, and conclude with a brief outline of next steps.

scholarly journals Architecture and implementation of a high frame-rate stereo vision system

2021 ◽  
Author(s):  
Jamin Islam
Keyword(s):  
Integrated Circuits ◽  
Stereo Vision ◽  
High Speed ◽  
Vision System ◽  
Low Cost ◽  
Cost Effective ◽  
Frame Rate ◽  
Superior Performance ◽  
High Frame Rate ◽  
Stereo Vision System

For the purpose of autonomous satellite grasping, a high-speed, low-cost stereo vision system is required with high accuracy. This type of system must be able to detect an object and estimate its range. Hardware solutions are often chosen over software solutions, which tend to be too slow for high frame-rate applications. Designs utilizing field programmable gate arrays (FPGAs) provide flexibility and are cost effective versus solutions that provide similar performance (i.e., Application Specific Integrated Circuits). This thesis presents the architecture and implementation of a high frame-rate stereo vision system based on an FPGA platform. The system acquires stereo images, performs stereo rectification and generates disparity estimates at frame-rates close to 100 fpSi and on a large-enough FPGA, it can process 200 fps. The implementation presents novelties in performance and in the choice of the algorithm implemented. It achieves superior performance to existing systems that estimate scene depth. Furthermore, it demonstrates equivalent accuracy to software implementations of the dynamic programming maximum likelihood stereo correspondence algorithm.

scholarly journals An Evaluation of Temporal and Club Angle Parameters During Golf Swings Using Low Cost Video Analyses Packages

2022 ◽  
Author(s):  
Henry H. Hunter ◽  
Ukadike C. Ugbolue ◽  
Graeme G. Sorbie ◽  
Wing-Kai Lam ◽  
Fergal M. Grace ◽  
...  
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Cost Effective ◽  
Video Camera ◽  
Golf Club ◽  
Phase Measurements ◽  
Swing Time ◽  
The Cost ◽  
3D Software ◽  
2D And 3D

Abstract The purpose of this study was to compare swing time and golf club angle parameters during golf swings using three, two dimensional (2D) low cost, Augmented-Video-based-Portable-Systems (AVPS) (Kinovea, SiliconCoach Pro, SiliconCoach Live). Twelve right-handed golfers performed three golf swings whilst being recorded by a high-speed 2D video camera. Footage was then analysed using AVPS-software and the results compared using both descriptive and inferential statistics. There were no significant differences for swing time and the golf phase measurements between the 2D and 3D software comparisons. In general, the results showed a high Intra class Correlation Coefficient (ICC > 0.929) and Cronbach’s Coefficient Alpha (CCA > 0.924) reliability for both the kinematic and temporal parameters. The inter-rater reliability test for the swing time and kinematic golf phase measurements on average were strong. Irrespective of the AVPS software investigated, the cost effective AVPS can produce reliable output measures that benefit golf analyses.

scholarly journals Design and Creation of Custom Internet of Things (Iot) Device for Analysis of Drunk and Drowsy Driver Detection

2020 ◽  
Vol 9 (4) ◽  
pp. 1382-1387
Keyword(s):  
Internet Of Things ◽  
Road Safety ◽  
Low Cost ◽  
Drunk Driving ◽  
Cost Effective ◽  
Modern World ◽  
The Internet ◽  
Daily Lives ◽  
The Road ◽  
Design And Testing

Road Safety is the most crucial aspect in this modern world as the reckless use of the developed technology i.e. vehicles, is leading to human loss. Safety concerns while driving is of utmost importance in our daily lives. It might lead to the loss of lives of even innocent people and loss of property. The evolution of the Internet of Things (IoT) and the continuing increase in the number of sensors connected to the Internet has led to development of various application in our day to day life. Thus, automation in road safety using IoT can help to reduction as well as prevention of accidents. Accuracy is important when it comes to road safety and one must always strive to achieve the highest accuracy, provided there is no trade off’ with inexcusable time. Most of the road accidents are caused due to drowsiness or drunk driving. This paper deals with the design and testing of drunk and sleep-deprived driver detection device. This paper presents a low-cost effective method for drowsiness detection and proposes a method to detect whether the driver is drunk or not. Finally, it lays off a way to communicate with emergency help services. It deals with the design and testing of drunk and drowsy driver detection device.

Light Rail Lite or Cost-Effective Improvements to Bus Service?

2005 ◽  
Vol 1927 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Daniel B. Hess ◽  
Brian D. Taylor ◽  
Allison C. Yoh
Keyword(s):  
High Speed ◽  
Low Cost ◽  
Effective Means ◽  
Cost Effective ◽  
Light Rail ◽  
Rapid Transit ◽  
Service Characteristics ◽  
Wide Range ◽  
Bus Service ◽  
The Cost

Bus rapid transit (BRT) is growing rapidly in popularity because it is viewed widely as an efficient and effective means to improve both transit service and patronage. This paper argues that two distinct views of BRT are emerging: ( a) BRT as a new form of high-speed, rubber-tired, rail-like rapid transit and ( b) BRT as a cost-effective way to upgrade both the quality and image of traditional fixed-route bus service. These two views carry different price tags because the cost of planning, constructing, and operating BRT depends on the complexity of new service features and on rises for BRT that offer service characteristics approaching those of light rail. This study fills a gap in the literature on the costs of BRT by examining in detail component costs–-actual costs for recently implemented services and projected costs for planned new services–-for a sample of BRT systems in North American cities. The study examined BRT costs of 14 planned and recently opened BRT systems to determine how the wide range of BRT service and technology configurations affect costs. The study found that although some of the most successful and popular new BRT systems are high-quality services operating in mixed traffic and implemented at relatively low cost, most BRT projects on the drawing boards are more elaborate, more expensive systems than many currently in service. Most new BRT projects emphasize elaborate LRT-type improvements to lines and stations in one or a few corridors rather than less splashy improvements (such as next-bus monitors, signal preemption, queue-jump lanes, and so forth) affecting more lines and modes in local transit networks. Among the 14 systems examined here, most could be characterized as light rail lite.

A Gamification Update to the Taxonomy of Technology and Mental Health

2019 ◽  
pp. 85-97
Author(s):  
Madeline R. Marks ◽  
Amanda C. Tan ◽  
Clint Bowers
Keyword(s):  
Mental Health ◽  
Internet Of Things ◽  
Technology Acceptance ◽  
Low Cost ◽  
Cost Effective ◽  
The Internet ◽  
Mental Health Providers ◽  
Health Providers ◽  
Continuous Use ◽  
The Internet Of Things

Mental health providers cannot ignore the importance of utilizing technology in this era of the internet of things. This chapter reaffirms the need for mental health providers and software developers to work in concert with each other when developing technology for mental health. The authors also articulate the importance of the patient and the patient's role in connecting technology to the equation. As researchers and practitioners, the goal should be to create technology that will encourage repeated and continuous use of said technology and not just technology acceptance in order to move the field forward toward the provision of low-cost, effective mental health services.

Prerecorded telemedicine

2005 ◽  
Vol 11 (6) ◽  
pp. 276-284 ◽  
Author(s):  
Vincenzo Della Mea
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
The Internet ◽  
Still Images ◽  
Moving Images ◽  
Cost Effective Method ◽  
Wide Availability ◽  
Audio Data ◽  
Store And Forward ◽  
Types Of Information

In prerecorded telemedicine (also known as asynchronous or store-and-forward), the person sending the information and the person receiving it do not need to do so simultaneously; thus, viewing the information can be done at some later time. Prerecorded telemedicine is therefore not appropriate for emergency consultations. In prerecorded telemedicine systems, the following steps can be distinguished: (1) the acquisition of diagnostic information at the remote site; (2) its storage, which can be at either site, or at both; (3) its delivery to the expert site through an appropriate connection; and (4) its display at the expert site. The types of information transferred include audio, data and text, still images and moving images (i.e. video). An increasingly common way of doing prerecorded telemedicine is by email sent via the Internet. Although there are some problems associated with the Internet, its wide availability and low cost have encouraged its use. Examples where email has been used successfully include teleradiology, telecardiology, teledermatology and telepathology. In some situations prerecorded telemedicine is the only way to provide remote medical services, or the most cost-effective method. Clearly, there are also situations when prerecorded telemedicine is not an appropriate way to deliver health services, for example whenever the sender of the information is not qualified to sample the information acquired or the specialist receiving the information must manipulate it, during acquisition, in some way.

Evolution of the Turboprop for High Speed Air Transportation

1978 ◽  
Author(s):  
G. E. Holbrook ◽  
G. Rosen
Keyword(s):  
Fuel Consumption ◽  
Noise Level ◽  
High Speed ◽  
Cost Effective ◽  
Air Transportation ◽  
Low Noise ◽  
The Other ◽  
Propulsion Systems ◽  
Maintenance Costs ◽  
Passenger Comfort

Since they first entered military and commercial service during the 1950’s, U.S.-manufactured turbopropeller engines have proved to be reliable, fuel-efficient propulsion systems for aircraft. Despite their somewhat greater mechanical complexity when comprared with turbofans, the repair and maintenance costs of the turboprops compare very favorably with those of the other types, and their substantially reduced fuel consumption and low noise level merit serious consideration for aircraft in an energy and environmentally critical future. Advancements in propeller/fan aerodynamic and structural technologies now permit flight speeds up to Mach 0.85, making turly cost-effective aircraft possible, while retaining present standards of passenger comfort and powerplant reliability.

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