IPTV supports multicast and unicast transmission of TV content. Multicast transmits the same content to multiple receivers simultaneously, while unicast transmits different content to each receiver. Video and audio are encoded using codecs into a compressed transport stream. The Real-time Transport Protocol controls media servers by issuing commands and maintains state between clients and servers for unicast transmission. Quality of experience for IPTV relies on error-free delivery to avoid issues like pixelation.
It was a professional presentation for niksun, but most of the project related content and designs are removed. Only basics and some feature of IPTV is uploaded in these slides.
This slideshow explains IPTV technology and services. You will learn how television can be sent through managed IP networks (e.g. TelcoTV DSL) or unmanaged IP networks (Internet TV).
It was a professional presentation for niksun, but most of the project related content and designs are removed. Only basics and some feature of IPTV is uploaded in these slides.
This slideshow explains IPTV technology and services. You will learn how television can be sent through managed IP networks (e.g. TelcoTV DSL) or unmanaged IP networks (Internet TV).
a seminar presentation on satellite communication & DTH with all the key point covered under this ppt with a small video attached in one of the slides inside this presentation.
Starcor IPTV/OTT Solution. The IntroductionStarcor
STARCOR is a professional end-to-end OTT/IPTV solution provider along with other comprehensive services like operation service and big data service. STARCOR has been continuously committing to develop high-quality and perfect-user-experience products for both domestic and oversea clients .
MPLS-TP is subset of MPLS. It uses the same data plane as used by MPLS (Defined in RFC 3031 and RFC 3032). MPLS-TP has four major areas:-
1. Data Plane
2. Control Plane
3. O&M
4. Survivability
MPLS-TP has no control plane, the reason for this was that the recovery. If the dynamic control plane is used, in that case the convergence would depend on the dynamic protocol and providers cannot leverage the <50 ms failover time in that case. It uses the same QoS diffserv model except uniform model as used in MPLS.
Presentation on HDTV Technology and Scanning Techniques
1) Progressive and interlaced
2) Broadcasting System
3) Aspect Ratio
4) Frame Rate
5) Pixels
6) Frame
7) CRT and HDTV
Author: PhD. Student Pilar Rodríguez Franco
Physicist and prospective Electronic Engineer
Year: (2012)
Trabajo de ingeniería electrónica sobre el presente de las comunicaciones por fibra óptica y la evolución de las mismas.
a seminar presentation on satellite communication & DTH with all the key point covered under this ppt with a small video attached in one of the slides inside this presentation.
Starcor IPTV/OTT Solution. The IntroductionStarcor
STARCOR is a professional end-to-end OTT/IPTV solution provider along with other comprehensive services like operation service and big data service. STARCOR has been continuously committing to develop high-quality and perfect-user-experience products for both domestic and oversea clients .
MPLS-TP is subset of MPLS. It uses the same data plane as used by MPLS (Defined in RFC 3031 and RFC 3032). MPLS-TP has four major areas:-
1. Data Plane
2. Control Plane
3. O&M
4. Survivability
MPLS-TP has no control plane, the reason for this was that the recovery. If the dynamic control plane is used, in that case the convergence would depend on the dynamic protocol and providers cannot leverage the <50 ms failover time in that case. It uses the same QoS diffserv model except uniform model as used in MPLS.
Presentation on HDTV Technology and Scanning Techniques
1) Progressive and interlaced
2) Broadcasting System
3) Aspect Ratio
4) Frame Rate
5) Pixels
6) Frame
7) CRT and HDTV
Author: PhD. Student Pilar Rodríguez Franco
Physicist and prospective Electronic Engineer
Year: (2012)
Trabajo de ingeniería electrónica sobre el presente de las comunicaciones por fibra óptica y la evolución de las mismas.
IPTV India Progress Report 2009 by Knowledgefaber - Market AnalysisAmit Goel
Knowledgefaber report is on the progress of IPTV in the Indian market (2009). For more details on the IPTV market in India visit www.knowledgefaber.com and write to inquiry@knowledgefaber.com
Smart cards are typically credit card sized, plastic credentials containing a microprocessor chip that serves the dual functions of communication and extensive data storage. Although it is packaged in the form of a card, a smart card operates much like a personal computer in that it can store data, manipulate data, and perform functions like mathematical equations. Smart cards normally contain application fields/sectors secured by special, application-specific security keys (much like keys that unlock various rooms in a building). These sectors can contain information for various applications – such as access control, cashless vending, mass transit, and payment systems – securely separated from one other by security keys. Smart cards can come in two forms: contact and contactless. Contact smart cards operate much like magnetic stripe cards (credit cards, etc.), requiring insertion into or direct contact with a reader. Contactless cards are read when presented near or in “proximity” to a reader
Survey paper on Virtualized cloud based IPTV Systemijceronline
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
International Journal of Computational Engineering Research(IJCER) is an intentional online Journal in English monthly publishing journal. This Journal publish original research work that contributes significantly to further the scientific knowledge in engineering and Technology.
With the help of IP networks new tools have emerged, such as Voice over IP (VoIP) and Internet Protocol Television (IPTV).
Nowadays, we can see various websites streaming audio and video services concurrently.
This is possible with the help of IP networks to transmit information throughout the globe.
Streaming of audio/video may be done live or it can be stored. In some cases, real time audio/video application is used.
Fundamentals of HVAC Systems is a thorough introduction on how HVAC systems control temperature, air quality and air circulation in a conditioned space.
Ideal for recent engineering graduates working in the HVAC&R industry, experienced engineers entering HVAC&R from another engineering area, as well as architects, technicians, construction or building management professionals who need to increase their knowledge of HVAC systems.
This course reader can function as a stand-alone reference, or may accompany the eLearning course, Fundamentals of HVAC Systems, online modules.
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.
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.
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.
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.
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.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
2. IPTV Transmission
IPTV supports two kinds of services:
• 1. Multicast IPTV, which consists of an emitter
which sends the same content to multiple
receivers the same time.
• Unicast IPTV, which also consists of an emitter
which sends TV content to multiple receivers.
In contrast to multicast IPTV every receiver
receives different content. This kind of service
can be used to send personalized TV content,
e.g. video on demand.
3. Mpeg Transport Stream
Several Codecs combine to create a transport stream for
the media being transmitted.
Codecs are used to encode video and audio information
into a compressed data stream.
4. Real-time transport Streaming
Protocol
• The Real-time Transport Streaming Protocol (RTSP)
enables a client to control a media server by
• issuing commands. Necessary for Unicast .
• RTSP reuses many design principle from HTTP:
– URL identifies resources;
– requests contain a method name and various parameters;
– replies contain a status code and parameters;
– messages are text based.
• RTSP is a stateful protocol. The server maintains state
of the client.
• With RTSP, every message contains a session identifier,
enabling the server to link received commands to a given
multimedia session.
.
6. Multicast
• Multicast IPTV enables a TV content provider to send TV content to
many subscribers at the same
• time.
• IP multicast saves considerable bandwidth, since only one stream is
transmitted over the network
• When a server multicasts data to several clients, it sends this data
to the corresponding
router only once.
• Similarly to regular TV, multicast IPTV supports multiple channels
and sends them at the same time.
• IPTV does not broadcast to a user all channels at the same time.
– IPTV divides channels into groups and sends to each user the group
that contains the requested channel.
– The user can switch between channels at any time.
8. Unicast
• Unicast IPTV sends a given TV content to a
given user. Video on Demand is a typical service
of
IPTV, which enables a user to request a specific
movie and to receive it on his TV set.
• Contrary to multicast IPTV, unicast IPTV does
not save bandwidth, since the server must send
the content once for each user.
• Unicasting can be extremely demanding on the
server if multiple streams must be generated by
the media server and transmitted over the
network.
10. QoE – Quality of Experience
• QoE is reliant upon error free delivery of
packet data without retransmission.
• Very similar to packet voice where packets
are not acknowledged
• Customers are much less accepting of
poor video quality
12. Components of a typical IPTV
System
• A National head-end - Origination point of network
Broadcasts for transmission over the IP network.
• Core networks - Usually an IP/MPLS network
transporting traffic to the access network
• Access networks - Distributes the IPTV streams to
the DSLAMs
• Regional head-end – Origination point for local
content
• Customer premises - Where the IPTV stream is
terminated and viewed using a Set Top Box or
Computer.
14. Datastream Delivery
• Broadcast information coming from the national head-end is
typically distributed using MPEG-2 encoding to the video service
nodes.
• Competing compression algorithms are growing in popularity such
as H.264 (MPEG-4 Part 10) or the Society of Motion Picture and
Television Engineers (SMPTE) 421M (also known as VC-1)
• The channel content can be of standard or high definition.
• Distribution over the access network is done though digital
subscriber line access multiplexers (DSLAM) and fiber-to-the-home
(FTTH) services.
• The subscriber’s set top box (STB) acts as the terminating interface
for the network providing output to the television.
• For IPTV, each channel is distributed using a multicast IP address.
15. Factors Affecting Service
• Encoding and Compression – The quality of a transmission can be affected from the source
depending on the encoding technique and level of compression. Generally speaking increased
compression leads to a poorer video quality but a smaller data stream. There is a tradeoff
between bandwidth and compression level.
• Jitter in IPTV transmission is defined as a short-term variation in the packet arrival time. Jitter is
typically caused by network or server congestion. To help combat jitter, STB’s use buffers to
smooth out the arrival times of the data packets. I the buffer overflows or underflows, at the STB,
there is often a degradation of the video output.
• Limited Bandwidth – Bandwidth availability is often an issue that affects the access network or
the customers home network. When traffic utilizes the entire bandwidth, packets are dropped,
leading to video quality degradation.
• Packet Loss Loss of IP packets may occur for multiple reasons:
– bandwidth limitations
– network congestion
– failed links
– transmission errors
– Packet loss usually presents a bursty behavior, commonly related to periods of network congestion.
16. Mpeg-2 Compression
•Frame Types
•I frames- least compressed reconstructed independently
•P frames use data from previous frames leading to greater compression
•B frames use data from previous as well as following video frames leading to
even greater compression.
•Affect of err’d packets is greatest on I frames.
17. Key QoE Metrics
• IPTV is evolving and is not well defined for
testing.
• The most popular parameters for testing delivery
of IPTV packets are the media delivery index
(MDI) and PCR jitter for MPEG-2 TS.
• Other parameters are also used in the IPTV
network, but require intense packet inspection to
determine transmission problems.
18. Media Deliver Index (MDI)
• MDI is a standards based video quality
metric (RFC-4445)
• MDI measures two factors:
– Delay Factor
– Media Loss Rate
• Factors lead to a QoS measure that
directly relates to the customers QoE
19. Benefits of Using MDI
• MDI does not perform any type of stream decoding to achieve its
metrics and therefore does not require significant real-time processing
power.
• MDI can be used with encrypted media payloads.
• MDI is not dependent on any one type of video-encoding technique, so
it can easily be scaled to monitor video quality on hundreds of
simultaneous channels.
• MDI is typically sampled at multiple points throughout the stream path
with the measurements serving as indicators of problems in the
network that can be proactively addressed before they become
service-affecting issues.
• Since MDI relies on transport-layer metrics (DF and MLR), it can be
used to set network margins and it directly correlates to impending
network problems with respect to video quality.
• Since MDI uses packet-level metrics, it helps validate the performance
of network equipment such as switches and routers that play a key
role in determining whether a packet is delayed or dropped.
21. References
• IPTV related standardization activities – from international
Telecommunication Union Website
http://www.docstoc.com/docs/10154710/IPTV-Presentations-
Presentation%5B641%5D
• EXFO Test Equipment Manufacturer Website -
http://www.exfo.com/en/applications/IPTV-Overview.aspx
• Video Compression picture types form Wikipedia
http://en.wikipedia.org/wiki/Video_compression_picture_types
• Definition and Specifications of IPTV and VoIP
Services from Adamantium Web Site
http://www.ict-
adamantium.eu/documents/deliverables/ADAMANTIUM_D2.3.pdf