SatNetCode - Satellite Network-Coding for High Performance, Semantic-Aware Mission-Critical Visual Communications


SatNetCode scope is to provide reliable end-to-end visual-data communications for mission-critical operations by integration of adaptive network re-encoding. The activity aims to   improve information throughput while minimizing bandwidth usage.

SatNetCode targets users that need visual situational awareness; e.g in emergency, disaster, safety and security organizations. For these organizations, operational scenarios (with observers, decision makers and actions teams) usually consist of several physical nodes at different locations communicating using different networks.

By advancing beyond the traditional approaches of routing and forward erasure correction codes, SatNetCode exploits the opportunities to use novel in-network coding schemes in order to increase the overall throughput and provide better quality of experience for critical operations.


In this project, two key challenges are identified to deliver reliable end-to-end visual-data communications with network coding:

First, to protect data from packet erasures in an end-to-end solution where mobile satellite links are integrated as a key network component, and linked with other networks. These networks may under difficult conditions be unstable and unpredictable, resulting into impairments including packet erasures and varying bandwidth.

Second, the need of innovation in design methodology for virtualization of network coding functions that can be used irrespective of the underlying physical network and for any offered services. 


SatNetCode will provide better capabilities for end-to-end services over heterogeneous networks that include satellite. Novelty takes European industry beyond contemporary state-of-the-art satellite networking and opens up for exploitation of new and powerful services.

SatNetCode will increase the performance of an existing product for video streaming, and will be considered as a toolbox product for other satellite-optimized applications. It will increase user experience for visual communications when satellite-links are use in the access domain for either sender, receiver or both sides, for a wide range of applications such as:

  • Disaster management 

  • Emergency communication 

  • Security 

  • Surveillance

  • Remote monitoring (home security, land security, etc) 

  • Tele-medicine

Dynamic bandwidth that both changes in capacity and quality can be used more optimally. SatNetCode can also provide added security elements. The coding technology is also flexible for application of future usage in a wide number of different communication/networking applications. 


Main Features of SatNetCode:

  • Better quality and lower cost for end-to-end visual communication under packet-loss conditions.
  • Higher “goodput” rates and smaller residual packet losses with network coding as compared to state-of-the-art routing protocols.
  • Adaptive coding minimizes overhead. Flexible coding rates.
  • Application layer multicasting possible.
  • Integration with multi-dimensional network coding with multiple paths, multiple sources, etc.
  • Adaptive network coding to counter varying packet losses in the system comprises of several networks including SatCom, WLAN, 2G/EDGE/3G/4G, etc.

SatNetCode activity shall implement the technologies in the Lab, and integrate them into a relevant demonstrator testbed with several network re-encoding nodes in line topology.

Selected use Case Scenarios:

  • Video streaming from UAVs
  • Video to, within and from Convoys


The basic system architecture is simple. There are:

-       Sources (like cameras) providing video or photos

-       Computers for running SatNetCode and application software

-       Communications equipment, like sitcom terminals

-       Network emulators

-       A first receiver node that passes content onwards and works as a re-encoding node

-       A final viewing node.

The high level architecture of the project is displayed below with the mapping of the physical nodes and logical network coding nodes.

The focus in this project is primariliy on the design and implementation of network coding functional blocks at these network coding nodes.


The duration of the project is 24 months.

The basic milestone planning is as follows:

  • MS1 Baseline Design Review (BDR)
  • MS2 Mid Term Review (MTR)
  • MS3 Final Review (FR)

Current status

The project has achieved MTR on Feb 2017.


ESA Contacts

Status date

Friday, March 17, 2017 - 12:25