Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks

•Download as PPT, PDF•

0 likes•378 views

Presently, wireless sensor networks most challenging applications are related to mobile sinks or even nodes, monitoring and intervening in critical areas. To this end, proper communications protocols design plays a crucial role in fulfilling user requirements. In the following, the benefits of adopting directive antennas, both in terms of energy saving and targets tracking are presented by integrating this feature into a novel MAC protocol (MD-STAR). Simulation results are also deeply provided, underlining higher performance of MD-STAR with respect to existing solutions, for different directive main lobe width and node density values.

Technology Business Sports

Slide 12009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
Energy Efficient Communications Solutions for NomadicEnergy Efficient Communications Solutions for Nomadic
NodesNodes
Within a Wireless Sensor NetworksWithin a Wireless Sensor Networks
Luca Bencini, Francesco Chiti, Giovanni Collodi, Davide Di Palma,
Romano Fantacci, Antonio Manes, Gianfranco Manes
Department of Electronics and Telecommunications – University of Florence

Slide 22009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
OUTLINEOUTLINE
• Introduction
• Application area
• System Requirement
• Mobile Directive Synchronous Transmission Asynchronous
Reception Protocol
• Proposed MAC Protocol
• State Diagram
• Discovery phase
• Regime phase
• Performance Analysis
• Relative lifetime gain
• Collision probability
• Latency
• Conclusion and future development

Slide 32009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
APPLICATION AREAAPPLICATION AREA
• habitat monitoring
• healthcare applications
• home automation
• traffic control
• robot applications (DustBot)
nomadic Wireless Sensor
Network application areas

Slide 42009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
SYSTEM REQUIREMENTSYSTEM REQUIREMENT
• low power consumption
• low latency
• low collision probability
• good synchronization between nodes and
nomadic nodes
cross-layer protocol
MD-STAR

Slide 52009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
Mobile Directive Synchronous Transmission Asynchronous Reception Protocol
MD-STAR protocol:
• is a novel cross-layer protocol
• allows the managements of smart antennas
• takes into the account the antenna capabilities (directivity)
• allows achievement of space-time synchronization for mobile nodes
in mesh topology networks
MD-STAR PROTOCOLMD-STAR PROTOCOL

Slide 62009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
STATE DIAGRAMSTATE DIAGRAM
INIT
OFF
DISCOVER
Y
REGIME
Switch on
fdf Nn <
fdf Nn = sNremptysecto =
lowbatterybattery _<
lowbatterybattery _<
sNremptysecto =≤1

Slide 72009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
DISCOVERY PHASEDISCOVERY PHASE
init
off
discove
y
regime
Switch on
fdf Nn <
fdf Nn = sNremptysecto =
lowbatterybattery _<
lowbatterybattery _<
sNremptysecto =≤1
time
fupset TT 2≥−
slf TTT += slf TTT +=
2
4
5
3 2
4 1
ID-node phase secto
r
2 T-phase 3
ID-node phase secto
r
2 T-phase 3
3
ID-node phase secto
r
2 T-phase 4

Slide 82009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
REGIME PHASEREGIME PHASE
init
off
discove
y
regime
Switch on
fdf Nn <
fdf Nn = sNremptysecto =
lowbatterybattery _<
lowbatterybattery _<
sNremptysecto =≤1
time
fT
lT
fT
lTsT sT
4
2
3
5
ID-node phase secto
r
4 T-phase 3
1
23
42
3 2
4 1
ID-node phase secto
r
2 T-phase 2
ID-node phase secto
r
2 T-phase 2
ID-node phase secto
r
2 T-phase 2

Slide 92009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
Rate 250 Kbps
Number of nodes [10, 15, …., 50]
Number of angular
sector
[1, 2, 4, 6, 8]
Monitored area 25 m x 25 m
Velocity of mobile node [4,1 : 5,1] m/s
PERFORMANCE ANALYSISPERFORMANCE ANALYSIS
• mobility model: Random Waypoint
Model (RWM)
• antenna model: ideal Switched Beam
antenna
Parameter considered to evaluate the performance of MD-STAR:
• relative lifetime gain
• collision probability
• latency

Slide 102009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
RELATIVE LIFETIME GAINRELATIVE LIFETIME GAIN

Slide 112009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
COLLISION PROBABILITYCOLLISION PROBABILITY

Slide 122009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
LATENCYLATENCY

Slide 132009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA.
CONCLUSION AND FUTURECONCLUSION AND FUTURE
DEVELOPMENTDEVELOPMENT
CONCLUSION:
• MD-STAR protocol is suitable for the management of mesh
topology networks in presence of nomadic nodes.
• MD-STAR protocol satisfies the system requirement of low
power consumption, low latency and low collision probability.
FUTURE DEVELOPMENT:
• modify MD-STAR algorithm to manage mobile nodes using a
phased array antenna model.

BrPhotonics is a photonics company that develops integrated optical components for high-speed data transmission. It has a cleanroom facility for manufacturing electro-optic polymer modulators and packaging. The company is working on technologies like thin film polymer modulators, photonic packaging, tunable lasers, and silicon photonics chips to enable high-speed transceivers. It recently completed a second round of funding and now has CPqD, GigPeak, and FINEP as shareholders. BrPhotonics aims to reduce costs and power consumption while increasing port density through miniaturization.

Flexible Optical Transmission

CPqD

This document summarizes research presented at an optical technologies workshop on flexible optical transmission. It describes work done by CPqD, a Brazilian optical technologies company, on developing components and systems for 100G, 200G, and 400G optical transmission over long-haul, metro, and data center interconnect distances. This includes polymer-based transmitters for 100G and 200G coherent modules, spectrally-sliced receivers to enable 400G transmission, and achieving transmission distances of over 1500km for 400G using these techniques.

Photonics21 – Next-Generation Optical Internet Access: Roadmap for Broadband ...

Xi'an Jiaotong-Liverpool University

This document provides an overview and roadmap for achieving broadband optical access of 10Gb/s everywhere. It discusses: 1) The TSB Photonics21-NGOIA project which aims to identify promising approaches to achieving ubiquitous 10Gb/s access. 2) A paradigm shift in optical networking towards more flexible, dynamically reconfigurable networks to improve energy efficiency. 3) The concept of an "ultimate" optical network architecture with a common infrastructure across access, metro and backbone networks to maximize statistical multiplexing gains and reduce costs. 4) Several candidate technologies for next-generation optical access such as long-reach PON, WDM-PON and hybrid TDM/W

2015 10 07 - efficient optical transport layer for high-capacity optical netw...

Xtera Communications

1) The document discusses efficient optical transport layer solutions for high-capacity optical networking, focusing on long-haul data center interconnect (DCI) enabled by coherent transmission technologies and Raman optical amplification. 2) It describes how Raman amplification can provide spectrum expansion, reach extension, and higher capacity-distance products to meet the needs of new network operators with long-span networks. 3) Key results shown include over 150x100G transmission over 630km in two spans using Raman amplification, demonstrating its ability to meet the long-haul DCI requirements of high capacity, long reach, and low latency on existing fiber infrastructure.

Cognitive Technique for Software Defined Optical Network (SDON)

CPqD

This document discusses cognitive techniques for software defined optical networks (SDONs). It proposes using a fuzzy C-means (FCM) cognitive algorithm to determine modulation formats for high-speed transponders based on quality of transmission requirements. The FCM algorithm is compared to a case-based reasoning approach. Simulation results show the FCM approach has over two orders of magnitude faster computation time while achieving 100% accurate classification. This demonstrates FCM is a promising cognitive technique for SDON control planes to enable fast, autonomous decision making.

2015 02 04 international optical transport developments wdm africa 2015

Xtera Communications

This presentation reviews the current status and the forecast for international connectivity to Africa and traffic demands inside the continent. In a second step, the technical solutions, including wider spectrum as enabled by Xtera’s Wise Raman technology, to respond to the traffic growth are described. This presentation was delivered at WDM & Next Generation Optical Networking Africa 2015 conference (4-5 February 2015 – Cape Town, South Africa).

2014 11 13-field-deployment-of-advanced-photonic-technologies-for-ultra-high-...

Xtera Communications

2014 11 13-raman-amplification-for-wdm-transmission-acp-2014-a_th4_e-6-invite...

Xtera Communications

The document summarizes Xtera Communications' field trials demonstrating ultra-high bandwidth and bit rate transmission using Raman amplification. It discusses a 150 x 100G field trial over 1,504 km of legacy fiber and a 400G field trial. Raman amplification provides benefits over EDFA by expanding the usable optical spectrum from 38 nm to over 100 nm, increasing reach by 2x, and capacity by 6x. This allows meeting the insatiable demand for bandwidth without compromising transmission distance.

The document discusses the need for more efficient optical transport networks in Africa to support increasing network traffic and provide terrestrial backup for submarine cables. It presents Xtera's coherent optical technology using Raman amplification as an efficient solution, highlighting a 2,266 km Amazon network case study. This technology maximizes capacity and reach while minimizing components, enabling long spans suitable for Africa's sparse networks along power grids and between population centers.

Pr10 new technologies

Kieran Jackson

Digital technologies like social media, online gaming, and multimedia apps allow for the storage and processing of data. Digital audio broadcasting (DAB) is a digital radio technology used in Europe and Asia Pacific that was developed in the 1980s. DAB offers more radio channels over a given spectrum than analog FM radio, and has better reception quality during mobile listening. Benefits of DAB radio include more listening choices due to the ability to broadcast many more stations, and the inclusion of radio text to display information about the current song or program. Distribution technologies refer to content distribution from independent producers to radio stations via broadband, allowing producers to record and send programs without traveling to stations. Reception of radio has expanded from radios to include streaming

2014 11 13-advanced-technologies-for-unrepeatered-transmission-systems-and-th...

Xtera Communications

Next-Generation Optical Access Architecture

Xi'an Jiaotong-Liverpool University

This document summarizes Joseph Kim's presentation on STMicroelectronics' Advanced System Technology research group and their work on next-generation optical access network architectures. The presentation introduced ST's SUCCESS project, which aims to develop a hybrid WDM/TDM passive optical network with a ring topology that provides backward compatibility and a smooth migration path from current TDM-PON networks. Key aspects of SUCCESS include flexible remote nodes using thin-film tunable filters and splitters, cost-effective ONUs using optical bursts instead of local light sources, and an integrated OLT leveraging tunable laser sources to support both TDM and WDM networks.

wireless optical communication

GNS Manikanta

Optical wireless communication, also known as free space optics (FSO), uses lasers or LEDs to transmit data through the air. FSO can provide high-speed broadband connections for the "last mile" between buildings. However, FSO systems face challenges from atmospheric conditions like fog, rain, and smoke that can attenuate the optical signal. Proper choice of wavelength, transmitter power, receiver design, and link length can help overcome these challenges to provide reliable, high-bandwidth communication over short to medium distances.

Slides on haps comms. sibircon 2008.novosibirsk.rusia

jose Delgado-Penín

This document summarizes a simulation of HAPS (high-altitude platform station) systems performance at 28 GHz using LDPC coding and M-APSK modulation over a Ka band channel model. A digital coded transmission scheme for HAPS in the Ka band is proposed and its performance is evaluated via simulation. The simulation considers a time series generator to model short-term rain fading and frequency scaling to adapt attenuation measurements from 40 GHz to 28 GHz. The simulation results show that the best performing system is LDPC coding with a rate of 1/3, 16-APSK modulation, a codeword length of 16,200 bits, and 50 iterations for decoding over the rainy channel model.

Plasma Antennas Smart Antenna Technology Overview

Peter Curnow-Ford

Plasma Antennas Ltd is a UK-based company founded in 2001 that develops advanced multi-beam antenna technologies using plasma devices. They address markets for mobile broadband, secure networks, and homeland security. Their product portfolio includes conventional electronically scanned antenna arrays as well as early-stage plasma silicon technologies. Benefits of their plasma device approach include lower cost and complexity, wide bandwidth and coverage, and fast beam switching capabilities. The company is led by founder and Chairman Dr. David Hayes and focuses on applications such as 5G networks, satellites, and autonomous vehicles.

Recent trends in DCI optical networking

APNIC

The document discusses recent trends in optical networking for data center interconnects (DCI). It compares coherent and direct detection modulation formats. While coherent transmission offers higher spectral efficiency using complex modulation formats, direct detection has simpler implementations and lower power consumption, making it suitable for short-reach DCI applications. The document outlines new direct detection technologies that could expand its role, such as pluggable 100G QSFP28 optics using dual-wavelength PAM4 modulation to deliver up to 4Tb/s capacity per fiber.

Optical wireless communication

Vishak V Thampy

This document summarizes optical wireless communication (OWC), including visible light communication (VLC) and free space optical communication (FSO). It discusses the history and development of OWC, current applications, and future directions. Key advantages are high data capacity and bandwidth without licensing, while disadvantages include signal attenuation over distance. Future areas of focus include improving laser and optical network technologies to enable multi-terabit transmission and all-optical networks.

Alternatives to LTE for first responders - the evolution of radio communications

Comms Connect

This presentation will focus on CSIRO's work in radiofrequency communications. Specifically we have a number of patents covered under the brand 'NGARA' and have licensed some of these for use in public safety broadband wireless networks. Ngara backhaul and 'access' (point to multipoint) continues to set records for super high speed, super high efficiency wireless up to 10 Gbit/s. It has won numerous awards, including the Engineers Australia national Excellence in Innovation Award in 2013. NGARA currently enables up to 18 separate beams each of 50 Mbit/s symmetrical in 28 MHz of spectrum. Leveraging dynamic beam forming, we can get highly targeted narrow beams very close together with powerful auto-alignment of antennas to minimise operational cost and set-up time. These features lend themselves to being able to address some of the challenges faced by public safety network providers. Existing LTE Mobile networks congest very quickly under severe localised traffic generated during emergency situations, and separate highly efficient and targeted network performance is needed during these times of very high and unpredictable demand. Geof Heydon, Director, Information Sciences Group, CSIRO

Ericsson Technology Review – Microwave backhaul gets a boost with multiband

Ericsson

With the exception of Northeast Asia, 65 percent of all cell sites will be connected to the rest of the network using microwave backhaul technology by 2020. Between now and then, the performance of microwave backhaul will continue to improve, supporting growing capacity needs through technology evolution and more efficient use of spectrum. So as the dominant backhaul media in modern networks, the ability of microwave to carry traffic plays a significant role in providing good mobile network performance. Technology evolution, increased mobility, and massive digitalization continue to place ever more demanding performance requirements on networks. The constant pressure to increase performance translates into a need for more spectrum, and more efficient use of it – not just when it comes to radio access, but for microwave backhaul as well. But spectrum is a finite natural resource, so technology developments not only need to be able to make use of higher frequencies, they also need to unleash the potential of all the untapped spectrum that exists. Radio-link bonding is a well-established method for enhancing peak capacity, enabling multiple radio carriers to be aggregated into a single virtual one. So far, developments have focused on bonding carriers within the same frequency band. The multiband booster concept, however, uses radio-link bonding to aggregate carriers in different frequency bands, enabling the full spectrum potential to be unleashed.

What are Appropriate Border Surveillance Technologies? Sept. 16, 2014

Kallman Worldwide, Inc.

01 06-16 carlson - crowdfunder private and confidential 10 slide deck v4

Jim Carlson

This document discusses Carlson Wireless Technologies, a company developing wireless broadband technology using TV white space spectrum. It summarizes Carlson's technology, which can provide broadband access to rural and remote areas at a lower cost than other solutions. The document outlines Carlson's competitive advantages over other TVWS solutions, their business model and go-to-market strategy, management team, projections showing strong revenue growth from 2016-2019, and details of a $800,000 bridge capital raise.

Resume

Dr. Ali Nassib

Ali Nassib is seeking a full-time engineering position utilizing his experience in radar, remote sensing, computational electromagnetics, and RF/microwave devices. He has a Ph.D. in electrical engineering from the University of Dayton and experience managing radar systems and contracts for the FAA. His background includes extensive simulation, research, measurement, and teaching experience in areas such as radar imaging, antenna design, microwave components, and CMOS circuit design.

What is the future antenna technology of 2 g to 5g -- C&T RF Antennas Inc

Antenna Manufacturer Coco

Optical Wireless Communications - from the space to the chip.

Joaquin Perez

2016 02 02 - business case for new subsea and terrestrial builds in africa - ...

Xtera Communications

- The document discusses business cases for new submarine cable and terrestrial fiber optic builds in Africa. It outlines the key components and design considerations for submarine cable systems, including repeaters, branching units, power feeding equipment, and cable armor. Challenges for submarine systems include high costs, difficulty of repairs, and reliability requirements. - Technological evolution, such as higher modulation formats and improved error correction, can increase submarine cable capacity over time to reduce costs. Terrestrial fiber may provide restoration alternatives and backhaul capacity for inland regions. The future requires maximizing capacity per fiber through longer spans, modular designs, and more efficient power systems.

Wireless optical communication system

vibhu25

This document provides an introduction to optical wireless communication (OWC), also known as light fidelity (LiFi). It discusses how OWC works using beams of infrared or near-infrared light rather than radio waves. There are three main channel topologies: point-to-point links, diffuse links, and quasi-diffuse links. Advantages of OWC include high data rates, low costs, and no licensing requirements, while disadvantages include inability to pass through walls and limited transmission power. OWC applications include chip-to-chip communication, wireless optical local area networks, and free-space optical communication for long-range outdoor links.

Jiajiach presentationJAMe0323

Abastecimiento de agua por gravedad para poblaciones rurales dispersas

Jorge Beni Flores Rodriguez

Este documento describe el proceso por el cual 5 pequeñas poblaciones rurales dispersas en Perú lograron dotarse de un servicio sostenible de abastecimiento de agua por gravedad. Las comunidades enfrentaban problemas con su sistema tradicional de agua y buscaron una solución conjunta que captara agua de 7 manantiales en la parte alta para abastecer a todas. El proyecto construyó 10 tanques pequeños y líneas de conducción que resolvieron los desafíos técnicos. Las comunidades organizaron un sistema de administra

What's hot

TV Broadcasting R&D at CRC-Canada

Bernard Caron

2014 11 14-15_t-unrepeatered-transmission-over-409-6-km-acp-2014-af4b-4-post-...

Xtera Communications

2016 02 03 - efficient optical transport layer for high-capacity optical netw...

Xtera Communications

Pr10 new technologies

Kieran Jackson

2014 11 13-advanced-technologies-for-unrepeatered-transmission-systems-and-th...

Xtera Communications

Next-Generation Optical Access Architecture

Xi'an Jiaotong-Liverpool University

wireless optical communication

GNS Manikanta

Slides on haps comms. sibircon 2008.novosibirsk.rusia

jose Delgado-Penín

Plasma Antennas Smart Antenna Technology Overview

Peter Curnow-Ford

Recent trends in DCI optical networking

APNIC

Optical wireless communication

Vishak V Thampy

Alternatives to LTE for first responders - the evolution of radio communications

Comms Connect

Ericsson Technology Review – Microwave backhaul gets a boost with multiband

Ericsson

What are Appropriate Border Surveillance Technologies? Sept. 16, 2014

Kallman Worldwide, Inc.

01 06-16 carlson - crowdfunder private and confidential 10 slide deck v4

Jim Carlson

Resume

Dr. Ali Nassib

What is the future antenna technology of 2 g to 5g -- C&T RF Antennas Inc

Antenna Manufacturer Coco

Optical Wireless Communications - from the space to the chip.

Joaquin Perez

2016 02 02 - business case for new subsea and terrestrial builds in africa - ...

Xtera Communications

Wireless optical communication system

vibhu25

What's hot (20)

TV Broadcasting R&D at CRC-Canada

2014 11 14-15_t-unrepeatered-transmission-over-409-6-km-acp-2014-af4b-4-post-...

2016 02 03 - efficient optical transport layer for high-capacity optical netw...

Pr10 new technologies

2014 11 13-advanced-technologies-for-unrepeatered-transmission-systems-and-th...

Next-Generation Optical Access Architecture

wireless optical communication

Slides on haps comms. sibircon 2008.novosibirsk.rusia

Plasma Antennas Smart Antenna Technology Overview

Recent trends in DCI optical networking

Optical wireless communication

Alternatives to LTE for first responders - the evolution of radio communications

Ericsson Technology Review – Microwave backhaul gets a boost with multiband

What are Appropriate Border Surveillance Technologies? Sept. 16, 2014

01 06-16 carlson - crowdfunder private and confidential 10 slide deck v4

Resume

What is the future antenna technology of 2 g to 5g -- C&T RF Antennas Inc

Optical Wireless Communications - from the space to the chip.

2016 02 02 - business case for new subsea and terrestrial builds in africa - ...

Wireless optical communication system

Viewers also liked

Jiajiach presentationJAMe0323

Abastecimiento de agua por gravedad para poblaciones rurales dispersas

Jorge Beni Flores Rodriguez

13 priznakov togo_chto_vy_uchitelALEXANDRA_K1988

Continuous Experimentation in the B2B Domain: A Case Study

Jürgen Münch

Rapid value delivery requires a company to utilize empirical evaluation of new features and products in order to avoid unnecessary product risks. This helps to make data- driven decisions and to ensure that the development is focused on features that provide real value for customers. Short feedback loops are a prerequisite as they allow for fast learning and reduced reaction times. Continuous experimentation is a development practice where the entire R&D process is guided by constantly conducting experiments and collecting feedback. Although principles of continuous experimentation have been successfully applied in domains such as game software or SAAS, it is not obvious how to transfer continuous experimentation to the business-to-business domain. In this article, a case study from a medium-sized software company in the B2B domain is presented. The study objective is to analyze the challenges, benefits and organizational aspects of continuous experimentation in the B2B domain. The results suggest that technical challenges are only one part of the challenges a company encounters in this transition. The company also has to address challenges related to the customer and organizational culture. Unique properties in each customers business play a major role and need to be considered when designing experiments. Additionally, the speed by which experiments can be conducted is relative to the speed by which production deployments can be made. Finally, the article shows how the study results can be used to modify the development in the case company in a way that more feedback and data is used instead of opinions.

Proud Powerpoint

Lswackhamer

This document provides information about a play titled "We Are Proud to Present A Presentation About the Herero of Namimbia, Formerly Known as South-West Africa, From the German Sudwestafrika, Between the Years 1884-1915" by Jackie Sibblies Drury. It discusses the Herero genocide that killed 60,000 people and features concentration camps. It also discusses the challenges of telling such a horrific true story theatrically and explores the use of metatheatrics, which refers to theatrical devices that bring attention to the artificial nature of the theater. The document includes pictures from rehearsals and the premiere to showcase the production.

Internet

Hari Nag

The Internet is a worldwide network that connects computer networks and allows them to transmit data using the Internet Protocol. It was developed in the late 1960s by the U.S. Department of Defense to enable communication between researchers. The first message was sent over ARPANET in 1969. By the 1990s, use of the Internet exploded and its management was transferred to independent organizations in 1995. Now it is used worldwide for communication, information sharing, commerce, and social networking.

Onboarding in Open Source Software Projects: A Preliminary Analysis

Jürgen Münch

Nowadays, many software projects are partially or completely open-source based. There is an increasing need for companies to participate in open-source software (OSS) projects, e.g., in order to benefit from open source ecosystems. OSS projects introduce particular challenges that have to be understood in order to gain the benefits. One such challenge is getting newcom- ers onboard into the projects effectively. Similar challenges may be present in other self-organised, virtual team environments. In this paper we present preliminary observations and results of in-progress research that studies the process of onboarding into virtual OSS teams. The study is based on a program created and conceived at Stanford University in conjunction with Facebook’s Education Modernization program. It involves the collaboration of more than a dozen international universities and nine open source projects. More than 120 students participated in 2013. The students have been introduced to and supported by mentors experienced in the participating OSS projects. Our findings indicate that mentoring is an important factor for effective onboarding in OSS projects, promoting cohesion within distributed teams and maintaining an appropriate pace.

A history of the early MacCarthys

pmaccotter

Workshop6 pump-assy

mmd110

Presentation2

Rochelle Dreeben

This document discusses the history of antisemitism in Poland and relations between Jews and Catholics. It describes how blood libel myths accusing Jews of killing Christian children emerged in the late Middle Ages in England and Poland. While these myths had no basis, they acted as precursors to the antisemitism that fueled the Holocaust. The document also discusses how Polish Catholic clergy provided some help to Jews during the German occupation but maintained deeply rooted antisemitic views even after World War 2. It notes that today, Jewish survival after the Holocaust is an act of political self-definition rather than defining themselves as victims.

Bikini Waxing Dublin

Urbana online

hello

elmanuselacome

Viewers also liked (12)

Jiajiach presentation

Abastecimiento de agua por gravedad para poblaciones rurales dispersas

13 priznakov togo_chto_vy_uchitel

Continuous Experimentation in the B2B Domain: A Case Study

Proud Powerpoint

Internet

Onboarding in Open Source Software Projects: A Preliminary Analysis

A history of the early MacCarthys

Workshop6 pump-assy

Presentation2

Bikini Waxing Dublin

hello

Nunit vs XUnit vs MSTest Differences Between These Unit Testing Frameworks.pdf

flufftailshop

When it comes to unit testing in the .NET ecosystem, developers have a wide range of options available. Among the most popular choices are NUnit, XUnit, and MSTest. These unit testing frameworks provide essential tools and features to help ensure the quality and reliability of code. However, understanding the differences between these frameworks is crucial for selecting the most suitable one for your projects.

System Design Case Study: Building a Scalable E-Commerce Platform - Hiike

Hiike

Building Production Ready Search Pipelines with Spark and Milvus

Zilliz

Deep Dive: Getting Funded with Jason Jason Lemkin Founder & CEO @ SaaStr

saastr

UI5 Controls simplified - UI5con2024 presentation

Wouter Lemaire

How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf

Chart Kalyan

Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...

saastr

Trusted Execution Environment for Decentralized Process Mining

LucaBarbaro3

Artificial Intelligence for XMLDevelopment

Octavian Nadolu

In the rapidly evolving landscape of technologies, XML continues to play a vital role in structuring, storing, and transporting data across diverse systems. The recent advancements in artificial intelligence (AI) present new methodologies for enhancing XML development workflows, introducing efficiency, automation, and intelligent capabilities. This presentation will outline the scope and perspective of utilizing AI in XML development. The potential benefits and the possible pitfalls will be highlighted, providing a balanced view of the subject. We will explore the capabilities of AI in understanding XML markup languages and autonomously creating structured XML content. Additionally, we will examine the capacity of AI to enrich plain text with appropriate XML markup. Practical examples and methodological guidelines will be provided to elucidate how AI can be effectively prompted to interpret and generate accurate XML markup. Further emphasis will be placed on the role of AI in developing XSLT, or schemas such as XSD and Schematron. We will address the techniques and strategies adopted to create prompts for generating code, explaining code, or refactoring the code, and the results achieved. The discussion will extend to how AI can be used to transform XML content. In particular, the focus will be on the use of AI XPath extension functions in XSLT, Schematron, Schematron Quick Fixes, or for XML content refactoring. The presentation aims to deliver a comprehensive overview of AI usage in XML development, providing attendees with the necessary knowledge to make informed decisions. Whether you’re at the early stages of adopting AI or considering integrating it in advanced XML development, this presentation will cover all levels of expertise. By highlighting the potential advantages and challenges of integrating AI with XML development tools and languages, the presentation seeks to inspire thoughtful conversation around the future of XML development. We’ll not only delve into the technical aspects of AI-powered XML development but also discuss practical implications and possible future directions.

Introduction of Cybersecurity with OSS at Code Europe 2024

Hiroshi SHIBATA

I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems. The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS. Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application. I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.

leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...

alexjohnson7307

Letter and Document Automation for Bonterra Impact Management (fka Social Sol...

Jeffrey Haguewood

Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows. We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases. This video focuses on automated letter generation for Bonterra Impact Management using Google Workspace or Microsoft 365. Interested in deploying letter generation automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.

Generating privacy-protected synthetic data using Secludy and Milvus

Zilliz

During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.

Presentation of the OECD Artificial Intelligence Review of Germany

innovationoecd

Fueling AI with Great Data with Airbyte Webinar

Zilliz

Monitoring and Managing Anomaly Detection on OpenShift.pdf

Tosin Akinosho

Monitoring and Managing Anomaly Detection on OpenShift Overview Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices. Key Topics Covered 1. Introduction to Anomaly Detection - Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems. 2. Understanding Edge (IoT) - Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source. 3. What is ArgoCD? - Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices. 4. Deployment Using ArgoCD for Edge Devices - Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD. 5. Introduction to Apache Kafka and S3 - Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions. 6. Viewing Kafka Messages in the Data Lake - Learn how to view and analyze Kafka messages stored in a data lake for better insights. 7. What is Prometheus? - Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices. 8. Monitoring Application Metrics with Prometheus - Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system. 9. What is Camel K? - Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes. 10. Configuring Camel K Integrations for Data Pipelines - Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow. 11. What is a Jupyter Notebook? - Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text. 12. Jupyter Notebooks with Code Examples - Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.

Best 20 SEO Techniques To Improve Website Visibility In SERP

Pixlogix Infotech

Operating System Used by Users in day-to-day life.pptx

Pravash Chandra Das

Dive into the realm of operating systems (OS) with Pravash Chandra Das, a seasoned Digital Forensic Analyst, as your guide. 🚀 This comprehensive presentation illuminates the core concepts, types, and evolution of OS, essential for understanding modern computing landscapes. Beginning with the foundational definition, Das clarifies the pivotal role of OS as system software orchestrating hardware resources, software applications, and user interactions. Through succinct descriptions, he delineates the diverse types of OS, from single-user, single-task environments like early MS-DOS iterations, to multi-user, multi-tasking systems exemplified by modern Linux distributions. Crucial components like the kernel and shell are dissected, highlighting their indispensable functions in resource management and user interface interaction. Das elucidates how the kernel acts as the central nervous system, orchestrating process scheduling, memory allocation, and device management. Meanwhile, the shell serves as the gateway for user commands, bridging the gap between human input and machine execution. 💻 The narrative then shifts to a captivating exploration of prominent desktop OSs, Windows, macOS, and Linux. Windows, with its globally ubiquitous presence and user-friendly interface, emerges as a cornerstone in personal computing history. macOS, lauded for its sleek design and seamless integration with Apple's ecosystem, stands as a beacon of stability and creativity. Linux, an open-source marvel, offers unparalleled flexibility and security, revolutionizing the computing landscape. 🖥️ Moving to the realm of mobile devices, Das unravels the dominance of Android and iOS. Android's open-source ethos fosters a vibrant ecosystem of customization and innovation, while iOS boasts a seamless user experience and robust security infrastructure. Meanwhile, discontinued platforms like Symbian and Palm OS evoke nostalgia for their pioneering roles in the smartphone revolution. The journey concludes with a reflection on the ever-evolving landscape of OS, underscored by the emergence of real-time operating systems (RTOS) and the persistent quest for innovation and efficiency. As technology continues to shape our world, understanding the foundations and evolution of operating systems remains paramount. Join Pravash Chandra Das on this illuminating journey through the heart of computing. 🌟

Recently uploaded (20)

dbms calicut university B. sc Cs 4th sem.pdf

Your One-Stop Shop for Python Success: Top 10 US Python Development Providers

Nunit vs XUnit vs MSTest Differences Between These Unit Testing Frameworks.pdf

System Design Case Study: Building a Scalable E-Commerce Platform - Hiike

Building Production Ready Search Pipelines with Spark and Milvus

Deep Dive: Getting Funded with Jason Jason Lemkin Founder & CEO @ SaaStr

UI5 Controls simplified - UI5con2024 presentation

How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdf

Overcoming the PLG Trap: Lessons from Canva's Head of Sales & Head of EMEA Da...

Trusted Execution Environment for Decentralized Process Mining

Artificial Intelligence for XMLDevelopment

Introduction of Cybersecurity with OSS at Code Europe 2024

leewayhertz.com-AI in predictive maintenance Use cases technologies benefits ...

Letter and Document Automation for Bonterra Impact Management (fka Social Sol...

Generating privacy-protected synthetic data using Secludy and Milvus

Presentation of the OECD Artificial Intelligence Review of Germany

Fueling AI with Great Data with Airbyte Webinar

Monitoring and Managing Anomaly Detection on OpenShift.pdf

Best 20 SEO Techniques To Improve Website Visibility In SERP

Operating System Used by Users in day-to-day life.pptx

Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks

1. Slide 12009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. Energy Efficient Communications Solutions for NomadicEnergy Efficient Communications Solutions for Nomadic NodesNodes Within a Wireless Sensor NetworksWithin a Wireless Sensor Networks Luca Bencini, Francesco Chiti, Giovanni Collodi, Davide Di Palma, Romano Fantacci, Antonio Manes, Gianfranco Manes Department of Electronics and Telecommunications – University of Florence

2. Slide 22009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. OUTLINEOUTLINE • Introduction • Application area • System Requirement • Mobile Directive Synchronous Transmission Asynchronous Reception Protocol • Proposed MAC Protocol • State Diagram • Discovery phase • Regime phase • Performance Analysis • Relative lifetime gain • Collision probability • Latency • Conclusion and future development

3. Slide 32009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. APPLICATION AREAAPPLICATION AREA • habitat monitoring • healthcare applications • home automation • traffic control • robot applications (DustBot) nomadic Wireless Sensor Network application areas

4. Slide 42009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. SYSTEM REQUIREMENTSYSTEM REQUIREMENT • low power consumption • low latency • low collision probability • good synchronization between nodes and nomadic nodes cross-layer protocol MD-STAR

5. Slide 52009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. Mobile Directive Synchronous Transmission Asynchronous Reception Protocol MD-STAR protocol: • is a novel cross-layer protocol • allows the managements of smart antennas • takes into the account the antenna capabilities (directivity) • allows achievement of space-time synchronization for mobile nodes in mesh topology networks MD-STAR PROTOCOLMD-STAR PROTOCOL

6. Slide 62009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. STATE DIAGRAMSTATE DIAGRAM INIT OFF DISCOVER Y REGIME Switch on fdf Nn < fdf Nn = sNremptysecto = lowbatterybattery _< lowbatterybattery _< sNremptysecto =≤1

7. Slide 72009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. DISCOVERY PHASEDISCOVERY PHASE init off discove y regime Switch on fdf Nn < fdf Nn = sNremptysecto = lowbatterybattery _< lowbatterybattery _< sNremptysecto =≤1 time fupset TT 2≥− slf TTT += slf TTT += 2 4 5 3 2 4 1 ID-node phase secto r 2 T-phase 3 ID-node phase secto r 2 T-phase 3 3 ID-node phase secto r 2 T-phase 4

8. Slide 82009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. REGIME PHASEREGIME PHASE init off discove y regime Switch on fdf Nn < fdf Nn = sNremptysecto = lowbatterybattery _< lowbatterybattery _< sNremptysecto =≤1 time fT lT fT lTsT sT 4 2 3 5 ID-node phase secto r 4 T-phase 3 1 23 42 3 2 4 1 ID-node phase secto r 2 T-phase 2 ID-node phase secto r 2 T-phase 2 ID-node phase secto r 2 T-phase 2

9. Slide 92009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. Rate 250 Kbps Number of nodes [10, 15, …., 50] Number of angular sector [1, 2, 4, 6, 8] Monitored area 25 m x 25 m Velocity of mobile node [4,1 : 5,1] m/s PERFORMANCE ANALYSISPERFORMANCE ANALYSIS • mobility model: Random Waypoint Model (RWM) • antenna model: ideal Switched Beam antenna Parameter considered to evaluate the performance of MD-STAR: • relative lifetime gain • collision probability • latency

10. Slide 102009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. RELATIVE LIFETIME GAINRELATIVE LIFETIME GAIN

11. Slide 112009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. COLLISION PROBABILITYCOLLISION PROBABILITY

12. Slide 122009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. LATENCYLATENCY

13. Slide 132009 Radio & Wireless Symposium, San Diego, CA.2009 Radio & Wireless Symposium, San Diego, CA. CONCLUSION AND FUTURECONCLUSION AND FUTURE DEVELOPMENTDEVELOPMENT CONCLUSION: • MD-STAR protocol is suitable for the management of mesh topology networks in presence of nomadic nodes. • MD-STAR protocol satisfies the system requirement of low power consumption, low latency and low collision probability. FUTURE DEVELOPMENT: • modify MD-STAR algorithm to manage mobile nodes using a phased array antenna model.

Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks

Recommended

Recommended

More Related Content

What's hot

What's hot (20)

Viewers also liked

Viewers also liked (12)

Similar to Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks

Similar to Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks (20)

More from luca-bencini

More from luca-bencini (7)

Recently uploaded

Recently uploaded (20)

Energy Efficient Communications Solutions for Nomadic Nodes within a Wireless Sensor Networks