demonstrators. overview adaptive multilink streaming broadcasting livetv – boosting the uplink...
TRANSCRIPT
Demonstrators
Overview
• Adaptive multilink streaming
• Broadcasting LiveTV – Boosting the Uplink Capacity
• MACP "Multilink Aware“ Content Provider
Adaptive multilink video streaming
• Multilink support added to a media distribution system
• Targeting interactive real-time applications
o Video conference
o Remote operations
• Application requirements
o Low delay
Limited buffering
No retransmission
o Some of the data is more important that other
Good audio more important than good video
In scalable video (H.264/SVC) base-layer is more important than extension layer
Adaptive multilink video streaming
Adaptive multilink video streaming
Adaptive multilink video streaming
Adaptive multilink video streaming
Adaptive multilink video streaming
• We use multilink for both
o Increased throughput
Load balancing
The least important streams or sub-streams
o Resilience
Duplicate data on several links
The most important streams or sub-streams
• Multilink support is added to middleware
o At top of existing IP based interfaces/links
Adaptive multilink video streaming
• H.264/SVC implementation problem
o Crashes on lost packets in extension layer
o Demo work on whole streams, not sub-streams
• In demo
o Important audio stream
Duplicated on 2 links
Will be also load balanced when using more than 2 links
o Video is less important
Load balanced among the available links
Adaptive multilink video streaming
• Lessons learned
o Increased complexity
How do react and adapt to packet loss is much more complex
Out of order packets becomes common case
Heterogeneous links
Harder to make a good packet scheduler
o Avoid having one newly added (bad) link destroy the QuE
• Future work
o Improved packet scheduler
o More experience with different networks
o Better support for existing applications
Don’t need to be programmed against ML middleware
Setup of multilink streaming demonstrator
21 September 2011
MARCH & EW-2 Workshop, Fornebu
11
Telenor
Internet
Ethernet
WiFi
3G
3G
Ethernet
Broadcasting LiveTV – Boosting the Uplink CapacityLiveU provides a high-BW, redundant “super access “super access network” by bonding network” by bonding multiple networks, including multiple networks, including
cellular, simultaneously togethercellular, simultaneously together
Telenor LTE
Telenor #2
Other cellular?
Internet
Telenor access: WiFi/DSL/Cables/BGAN
LiveU – Confidential
HD60 - The Ultimate Choice for Professionals
Proprietary Antenna ArrayExtends cellular range
Proprietary Antenna ArrayExtends cellular range
High-Definition VideoUp to 1080i
High-Definition VideoUp to 1080i
Worldwide RoamingDual SIMs per Modem Worldwide RoamingDual SIMs per Modem
Supports Industry InterfacesVideo: SDI, HDMI, Analog ; Power: Anton-Bauer, IDX
Supports Industry InterfacesVideo: SDI, HDMI, Analog ; Power: Anton-Bauer, IDX
LiveU – Confidential
LU40 - The Ultimate Bonding Super Modem for Security & Prosumers
High-Definition VideoTransmits Up to 720p60High-Definition VideoTransmits Up to 720p60
Security solution4x4, Broad data link, encryption
Security solution4x4, Broad data link, encryption
Universal operationVideo: SDI, HDMI, AnalogPower: Internal, vehicle
Universal operationVideo: SDI, HDMI, AnalogPower: Internal, vehicle
Bonds cellular modems4 inside + 1 external
Bonds cellular modems4 inside + 1 external
Top Video ResiliencyFrom Moving vehicles, trains, even helicopters
Top Video ResiliencyFrom Moving vehicles, trains, even helicopters
LiveU – Confidential
LiveU provides LiveU provides “super access network”“super access network”, ,
Gravity provides Gravity provides “IPTV distribution”“IPTV distribution”
Telenor LTE
Telenor #2
Other cellular?
IP TV System
Telenor access: WiFi/DSL/Cables/BGAN
LiveU – Confidential
MACP”Multilink Aware“ Content Provider
MACP Objective
• The MACP demonstrator aims to show an application level use of the multilink architecture technology
• The objective is to move the decision making from the network level to the content provider level providing (among others)
o An updatable/upgradeable business logic.
o A device/hardware independent implementation
o A portable architecture
• This demo shows a possible use ofthe network status and multilink capabilities information to decide what content to provide, improving QoS and QoE
MACP Architecture
MACP: Campus 3D Viewer
• The real-time 3D viewer of the MARCH project demonstrator is an interactive multimedia application where the user moves and interacts within an scenario that simulates an university with virtual class-rooms.
• The user will move within the scenario on third person perspective, being able to observe and learn through different videos that will be show on the scenario screens. During this process he will be allowed to move freely in the scenario and choose within all the possible options that are available.
• This kind of application improves significantly the learning curve, the intrinsic and extrinsic motivations and the QoE
MACP: Campus 3D Viewer
MACP: Campus 3D Platform
• The 3D platform (3D Campus Platform) of the MARCH project is a web application that allows the user to manage the learning contents of the 3D Campus. It also manages how the 3D Campus is, defining elements such as buildings, classrooms or courses, with which the user may interact using the Campus 3D Viewer.
• On the other hand, the platform will have an interface that will enable it to query and test the business logic core involving the MARCH project. This core will be responsible for choosing the content and to provide it straightforward to the 3D Viewer, basing its decision on the network conditions.
MACP: Campus 3D Platform
MACP: MLG API
• public interface MLGStatus
o This interface provides a basic definition of a Mulitlink service to interrogate the network status in order to get an idea of the capabilities and therefore, adapt or provide the right content to the client.
• public int getNumberOfNetworks()
o Returns the number of available networks
• public ArrayList<String> listAvailableNetworks()
o Returns the list of the names (tipically the type of the networks) of the networks available in a precise moment.
• public int getAggergatedBandwidth()
o This method provides the actual agregated bandwidth in a precise moment. This information is a sum of all the available bandwidths of the available networks.
• public int getBandwidth(String intrface)
o This method is provided to enquire a network bandwidth
Demo Deployment
That’s it