Group A - IEEE_802.15.4
Apil, Irish A.
Cenal, Marie Claire B.
Cruz, Joshua Franzel
Esguerra, Jomarie Paolo L.
Estavillo, Edlyn U.
Jacoben, Joanne Marie G.
Lucas, Ralph Jayson
In this educational power point, networking standard organizations, a brief introduction to local area network technologies, summary of OSI layer modeling and Ethernet standards,... are provided.
This educational power point helps to introduce you about the basic concepts, structures, and functions of Virtual Private Network(VPN) and Internet Protocol security (IPsec).
This PPT focuses on the basic concepts of routing protocols including the executive summary of basic computer networks.
Regarding to the routing protocol concepts, it gives us a brief information of routing, protocol, routing protocol, types of routing protocol, metrics of a routing protocol algorithms...
In this educational power point, networking standard organizations, a brief introduction to local area network technologies, summary of OSI layer modeling and Ethernet standards,... are provided.
This educational power point helps to introduce you about the basic concepts, structures, and functions of Virtual Private Network(VPN) and Internet Protocol security (IPsec).
This PPT focuses on the basic concepts of routing protocols including the executive summary of basic computer networks.
Regarding to the routing protocol concepts, it gives us a brief information of routing, protocol, routing protocol, types of routing protocol, metrics of a routing protocol algorithms...
Here you will learn:
How to Connect two or more devices to share data and information.
What is OSI Model?
Introduction to OSI Model
What is Physical Layer?
Devices used Physical Layer
What is Signal?
Types of Signals?
Analog Signals
Digital SIgnals
What is Transmission Medium?
What Is Switch in Networking?
Networking 7 Layers.
.
Please like and comments your Question and suggestion?
Information Technology
Rrjeta Kompjuterike. Computer Networks.
Vetëm për qëllime edukative. For Educational Purposes Only.
NOTE: Some text does not display correctly (behind image) because SlideShare deformed it during upload.
Disa nga tekstet nuk duket mire apo duken mas fotove ketu ka faj SlideShare.
A framework that helps to understand complex network interactions. It is the part of the Internet communications process where these connections occur, by sending packets of data back and forth between different networks. There are two models that are widely referenced today: OSI and TCP/IP. The concepts are similar, but the layers themselves differ between the two models.
The IEEE 802 is a family of IEEE standards dealing with Local Area Networks and Metropolitan Area Networks. The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC).
The most widely used standards are for the Bridging and Virtual Bridged LANs (802.1), Ethernet family (802.3), Token Ring (802.5) and Wireless LAN (802.11).
Here you will learn:
How to Connect two or more devices to share data and information.
What is OSI Model?
Introduction to OSI Model
What is Physical Layer?
Devices used Physical Layer
What is Signal?
Types of Signals?
Analog Signals
Digital SIgnals
What is Transmission Medium?
What Is Switch in Networking?
Networking 7 Layers.
.
Please like and comments your Question and suggestion?
Information Technology
Rrjeta Kompjuterike. Computer Networks.
Vetëm për qëllime edukative. For Educational Purposes Only.
NOTE: Some text does not display correctly (behind image) because SlideShare deformed it during upload.
Disa nga tekstet nuk duket mire apo duken mas fotove ketu ka faj SlideShare.
A framework that helps to understand complex network interactions. It is the part of the Internet communications process where these connections occur, by sending packets of data back and forth between different networks. There are two models that are widely referenced today: OSI and TCP/IP. The concepts are similar, but the layers themselves differ between the two models.
The IEEE 802 is a family of IEEE standards dealing with Local Area Networks and Metropolitan Area Networks. The IEEE 802 family of standards is maintained by the IEEE 802 LAN/MAN Standards Committee (LMSC).
The most widely used standards are for the Bridging and Virtual Bridged LANs (802.1), Ethernet family (802.3), Token Ring (802.5) and Wireless LAN (802.11).
Zigbee Based Wireless Sensor Networks for Smart CampusIJMER
A network which connects a bunch of distributed low-power sensor nodes together, with each node dedicated to a predefined operation can be visualized as a Wireless Sensor Network (WSN).
This is a ppt about the recent trends in tech and wireless communication. As the is good document to read we are requesting to study the wireless communal harmony and peace to you. Aster that I have a great day and I will be available from June to September to December to February to the same here to visit our frequently asked questions about HTML5.
And ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha ha Akshar cholk Thai ne na jato ko bhi 6 baje uthta hai ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye shikhar ki aur batao ki nai dunia epaper ab naye 5.
A STUDY OF QOS 6LOWPAN FOR THE INTERNET OF THINGSijscmcj
6LowPAN was introduced by the IETF as a standard protocol to interconnect tiny and constrained devices
across IPv6 clouds. 6LowPAN supports a QoS feature based on two priority bits. So far, little interest has
been granted and this QoS feature and there are no implementations of such feature in real networks. In
this paper,we evaluate the capacity to provide QoS of these priority bits in various scenarios. We show that
under very heavy or very low network load, these bits have a limited effect on the delay
Secure and Service-Oriented Network Control Framework for WiMAX Networks
IEEE 802.16 supports both TDD ( time-division duplex) and FDD (frequency-division duplex)
Multihop communication is needed for deployment of wimax network. Because of multihop
Security is issues associated with wimax network
Issue is how to support different services and applications in WiMAX networks
SURVEYING BEST SUITABLE SCHEDULING ALGORITHM FOR WIMAX- WI-FI INTEGRATED HETE...cscpconf
To provide uninterrupted service to all subscribers in a wireless network, we need to incorporate a low cost, flexible Heterogeneous network which will be able to link with any kind
of network for efficient spectrum utilization, hence improved system capacity. In this connection, Wi-Fi/ Wi MAX integrated network seems to be an ideal solution as it is able to
provide easy deployment, high speed data rate and wide range coverage with high throughput, low end to end delay, flat and low jitter. Wi-Fi/ WiMAX integrated network provides Quality of
Service (QoS) that can support all kinds of real-time application in wireless networks that includes priority scheduling and queuing for bandwidth allocation that is based on traffic
scheduling algorithms within wireless networks. In this paper, we have designed a Wi-Fi/ WiMAX integrated network and analyze the performance of different scheduling algorithms for
that integrated network and highlight our findings on the scheduling algorithm which will give the best performance for a heterogeneous network.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
MATATAG CURRICULUM: ASSESSING THE READINESS OF ELEM. PUBLIC SCHOOL TEACHERS I...NelTorrente
In this research, it concludes that while the readiness of teachers in Caloocan City to implement the MATATAG Curriculum is generally positive, targeted efforts in professional development, resource distribution, support networks, and comprehensive preparation can address the existing gaps and ensure successful curriculum implementation.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
2. WHAT IS IEEE 802.15.4?
• IEEE 802.15.4 is a standard that defines the physical and medium
access control (MAC) layers of a low-rate wireless personal area
network(LR-WPAN). While IEEE 802.15.4 defines just the physical
and MAC layer of the network stack, there have been other efforts
such as ZigBee and 6LoWPAN that define the upper layers of the
network stack.
3. IEEE 802.15.4
• The original IEEE 802.15.4 standard was released in 2003
• The original version supported two physical layers, one of them
working in the 868 and 915 MHz frequency bands and the other
working in the 2.4GHz band.
• Later on, there was another revision released in 2006, which
improved the transfer speeds. Additional bands were added in the
subsequent revisions.
• It supports two classes of devices: Fully functional devices (FFD),
which have full network functionalities and the Reduced functional
devices (RFD), which possess limited functionalities.
4.
5. Physical Layer
• The physical layer (PHY) provides the data transmission service.
• The physical layer of the IEEE 802.15.4 is responsible for the following low level
functions: data transfer and reception, energy detection of current channel, link
quality indication and clear channel assessment.
• The energy detection of the receiver is used by the upper layer for their channel
selection algorithm. Link quality indication (LQI) indicates the strength of the
received signal.
• The clear channel assessment (CCA) is done based on one of the following three
methods: energy detection, carrier sensing or a combination of carrier sensing and
energy detection.
6.
7. MAC Layer
• The medium access control (MAC) enables the transmission of MAC frames through
the use of the physical channel.
• The MAC layer has the following features: association and disassociation,
acknowledged frame delivery, channel access mechanism, frame validation, guaranteed
time slot management, and beacon management.
• There are four types of MAC frames: data
frames, MAC command frames,
acknowledgment frames and beacon frames.
8.
9. Superframes in beacon-enabled networks
• The IEEE standard supports two types of channel access mechanisms: non-beacon
enabled and beacon-enabled. In case of non-beacon networks, the devices use
unslotted carrier sensing multiple access with collision avoidance (CSMA-CA). In
this mode, whenever a device wants to transfer data, it waits for a random backoff
delay time, performs CCA and sends the data if the channel is found to be idle. If the
channel is not idle, it waits for another random backoff delay time and repeats the
process. In case of beacon-enabled networks, a slotted version of CSMA-CA is used.
• There are three types of security mechanisms in the IEEE standard: no security,
access control lists (ACL) and symmetrickey security. Each device can contain
around 255 ACLs that can be used to control incoming and outgoing data. Advanced
encryption standard (AES) is used to provide either confidentiality or integrity or
both.
10.
11. ZIGBEE
• The ZigBee alliance was established in 2002 to develop a standard
protocol stack for low-cost, low-rate, low-power wireless devices. It
uses the IEEE 802.15.4 standard to define its physical and MAC layer.
• The ZigBee alliance is a nonprofit association of members aiming at the
development of the standard and consists of various kinds of
organizations including universities, equipment manufacturers,
semiconductor companies etc.
12.
13. Conclusion
• IEEE 802.15.4 has proved to be a popular technology in case of wireless
sensor networks. Though it is very similar to IEEE 802.11 (WLAN),
there are certain differences that make it well suited in low-power
networks. This makes it a suitable technology to be used in the internet
of things framework. In comparison to 802.11, the following features
makes it better suited for low-power networks: less data transmitted, less
complex modulation, less frame overhead and better power management
mechanisms. In case of 802.15.4, the RFDs are always in sleep mode and
wake up periodically to request data from its coordinator. The
coordinator stores the data till the specific RFD sends a request for the
data.
14. GROUP 1
• Joshua Franzel Cruz
• Jomarie Esguerra
• Ralph Jayson Lucas
• Irish Apil
• Marie Claire Cenal
• Edlyn Estavillo
• Joanne Marie Jacoben