Basic concepts of telecommunication its introductory concepts which of them are End user, NODES, STAGES OF TELEPHONE CALL. WHAT IS THE FUNCTION OF SUBSCRIBERS LOOP? WHAT IS ADDRESS SIGNALING AND ITS PURPOSE.? Differentiate simplex, half-duplex, and full duplex
,
ddata communications and computer networks
,
basic elements of a communication system
,
coaxial cable
,
star network
,
data transmission media
,
ring network
,
hybrid network
,
completely connected network
,
multi-access bus network
,
network linking devices
,
network interface card (nic)
,
ddata communications and computer networks
,
basic elements of a communication system
,
coaxial cable
,
star network
,
data transmission media
,
ring network
,
hybrid network
,
completely connected network
,
multi-access bus network
,
network linking devices
,
network interface card (nic)
Excellent ppt on network. Nobody has ever done such things in life. Better watch it or see it or doenload it or think it. The cable tv described in great manner.
The devices such that is very nicely captured. Allow this to download and cable tv is rocking tv
to transfer data in network from one device to another with acceptable accuracy, so the system must guarantee the transmitted data should be identical to received data.
there should be no errors if any error occurs in how many ways it can be detected and corrected
Applications of information theory in communication engineeringAbdul Razaq
this presentation describe source coding and channel coding
with error detection and correction technique and defines information theory and coding theory..abdul razaque
THE IMPACT OF DIGITAL COMMUNICATION ON SOCIAL NETWORKAbdul Razaq
Digital communication is any exchange of data that transmits the data in a digital form.
The growing of demand for the huge data transmission made the digital communication systems increasingly attractive, greatest of communications have become digital due to the advantages of digital communication over analog communication
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
1. INTRODUCTION TO
TELECOMMUNICATION
Presented by: ABDUL RAZAQUE
Email:abdulrazaque15tc@gmail.com
Telecommunication engineer
Quaid e Awam university of Engineering & science Technology
Nawabshah
2. Contents
• 1. Define Telecommunications
• 2. Identify end-users.
• 3 . What are the three phases of a telephone call?
• 4. Describe on-hook and off-hook.
• 5. What is the function of the subscriber loop
• 6. What is the function of the battery?
• 7. Describe address signaling and its purpose.
• 8. What is the theoretical capacity of a four-digit telephone number ? Of a three-digit
exchange number?
• 9. Define grade of service. What value would we have for an objective grade of service?
• 10. Differentiate simplex, half-duplex, and full duplex
• 11. List at least six QoS items.
• 12. Define a POP and POT.
3. What is Telecommunication
• communications at a distance
• “the transmission of signals over long distance, such as by telegraph, radio or television.
• Telecommunication encompasses the electrical communication at a distance of voice, data,
and image information (e.g., TV and facsimile)
• The word media (medium, singular) also is used to describe what is transporting
telecommunication signals.
• There are four basic types of medium:
• (1) wire-pair,
• (2) coaxial cable
• (3) fiber optics,
• (4) radio.
4. IDENTIFY END USER
• End users provide the inputs to the network and are recipients of network outputs.
• An I/ O may be a PC, computer, telephone instrument, cellular/ PCS telephone or combined device,
facsimile, or conference TV equipment.
• End-users usually connect to nodes. We will call a node a point or junction in a transmission system
where lines and trunks meet. A node usually carries out a switching function
• A connectivity connects an end-user to a node, and from there possibly through other nodes to some
final end-user destination with which the initiating end-user wants to communicate.
5. What are the three phases of a telephone call?
• There are three sequential stages to a telephone call:
• 1. Call setup;
• 2. Information exchange; and
• 3. Call take down.
• Call setup is the stage where a circuit is established and activated.
6. Describe on-hook and off-hook
• On-hook is a state in which a landline phone is currently “hang up”. In this position,
the line becomes available, and no calls can be made from the telephone.
• Where as Off-Hook can be defined as
• “the action of taking the telephone instrument out of its cradle.”
• The state of telephone line that allows dialing and transmission but prohibits
incoming calls from being answered.
7. Function of subscriber loop And battery
• The current source is a “battery” that resides at the local serving switch. It is connected
by the subscriber loop. This is just a pair of copper wires connecting the battery and
switch out to the subscriber premises and then to the subscriber instrument.
• The action of current flow alerts the serving exchange that the subscriber requests
service. When the current starts to flow, the exchange returns a dial tone, which is
audible in the headset (of the subscriber instrument).
8. Describe address signaling and its purpose
• There are seven digits to be needed. These seven digits represent the
telephone number of the called subscriber (user). This type of signaling,
the dialing of the digits, is called address signaling. The digits actuate
control circuits in the local switch, allowing a connectivity to be set up. If
the calling and called subscribers reside in the serving area of that local
switch, no further action need be taken.
9. What is the theoretical capacity of a four-digit telephone number? Of a
three-digit exchange number?
• The telephone number, as we used it here, is seven digits long. For example:
234 − 5678
• The last four digits identify the subscriber line; the first three digits (i.e., 234)
identify the serving switch (or exchange).
• For a moment, let’s consider theoretical numbering capacity.
The subscriber number, those last four digits, has a theoretical numbering
capacity of 10,000. The first telephone number issued could be 0000,
the second number, if it were assigned in sequence, would be 0001,
the third, 0002, and so on. At the point where the numbers ran out, the
last number issued would be 9999
10. • The first three digits of the preceding example contain the
exchange code (or central office code). These three digits
identify the exchange or switch. The theoretical maximum
capacity is 1000. If again we assign numbers in sequence, the
first exchange would have 001, the next 002, then 003, and
finally 999.
11. Define grade of service. What value would we have for an objective
grade of service?
• Networks are sized /dimensioned for a traffic load expected during the busy hour.
The sizing is based on probability, usually expressed as a decimal or percentage.
that probability percentage or decimal is called the grade of service. The grade of
service can be defined as as “the proportion of total calls, usually during the busy
hour, that cannot be completed immediately or served within a prescribed time.”
Grade of service and blocking probability are synonymous. Blocking probability
objectives are usually stated as B c 0.01 or 1%. This means that during the
busy hour 1 in 100 calls can be expected to meet blockage.
12. Differentiate simplex, half-duplex, and full duplex.
Simplex is one way operation; there is no reply channel provided. Radio and
television broadcasting are simplex. Certain types of data circuits might be
based on simplex operation.
• Half-duplex is a two-way service. It is defined as transmission over a circuit capable of
transmitting in either direction, but only in one direction at a time.
• Full duplex or just duplex defines simultaneous two-way independent transmission on a
circuit in both directions. All PSTN-type circuits discussed in this text are considered using
full duplex operation unless otherwise specified.
13. QOS
• Quality of service means how happy the telephone company (or other common carrier) is
keeping the customer. For instance, we might find that about half the time a customer dials,
the call goes awry or the caller cannot get a dial tone or cannot hear what is being said by the
party at the other end. All these have an impact on quality of service. So we begin to find
that QoS is an important factor in many areas of the telecommunications business and means
different things to different people.
14. List at least six QoS items
• Delay before receiving dial tone (dial tone delay);
• Availability of service tones [e.g., busy tone, telephone out of order, time out, and
all trunks busy (ATB)];
• Correctness of billing;
• Reasonable cost of service to the customer;
• Responsiveness to servicing requests;
• Responsiveness and courtesy of operators; and Time to installation of a new telephone and,
by some, the additional services offered by the telephone company.
15. Define PoP and PoT
• A point of presence Is a location where a long-distance carrier could terminate
services and provide connections into a local telephone network LATA.
• A point of terminations the last point o9f service rendered by a commercial
carrier under applicable tarif or networks.
• The POT generally is a distribution frame or other item of equipment (a cross-
connect) at which the LEC’s access facilities terminate and where cross-
connection, testing, and service verification.
16. REFERNCES
• 1. Webster’s Third International Dictionary, G&C Merriam Co., Springfield, MA, 1981.
• 2. IEEE Standard Dictionary of Electrical and Electronic Terms, 6th ed., IEEE Std. 100-
1996, IEEE, New York, 1996.
• 3. Telecommunication Planning, ITT Laboratories of Spain, Madrid, 1973.
• 4. R. L. Freeman, Telecommunication System Engineering, 3rd ed., Wiley, New York,
1996.