SIStema de Telecontrol Mallado Multi-radio Adaptativo



Radio control systems are a technology that has developed over the years and it has become a viable solution for many applications that require monitoring and control capabilities of distributed elements in geography. The range of products Farrell is an example of this evolution. In general they are nodes that make up networks with tree topology and sensors at the ends with consumption so low as to be powered by batteries.

Our goal is to get a solution with the intelligence and ability to make network configuration more versatile than tree or star and offer greater availability and better use of resources, for example, the creation of alternative paths if link or intermediate node are lost, or that the terminals can collaborate with each other when communicating with the central node. This possibility is very promising because it can help reduce the transmit power level, but may produce irregular consumption of batteries, low-speed transmissions and high delay, among other problems. To minimize these problems, the project proposes to develop data aggregation systems to minimize transmission, synchronization between nodes to reduce the duration of listening periods and routing strategies that are sensitive to energy consumption.

For low-speed and high transmission delay we propose to use multiple parallel channels for transmissions. Furthermore, the use of mesh network must be linked to routing protocols able to offer quality of service, being able to maximize the bandwidth for certain data streams and minimize the error possibility. And regarding media access control (MAC), the project considers the possibility of developing a new MAC according to the type of channel, the networks and the radio control possibilities of radios.

Summarizing we can say that the main objectives of the project are:

  • Adapting an existing radio control network to self-adaptation and self-management mechanisms.
  • Convert network in a mesh network so they can offer new possibilities such as improving the network availability, providing service to different types of use and making configuration easier.
  • Provide network with optimal routing mechanism based on parameters obtained from the same network in real time.

Project funded by:


The most important technological contribution of the project is this incorporation of ad-hoc concept in wireless telemetry networks. This results in creation of different network topologies from tree or star with more connectivity (mesh networks) and capacity to self-configuration and self-repair. The incorporation of different channels gives more agility to the radio channels assignment and minimizes a typical problem of mesh network; the speed reduction by increasing the complexity of multi-hop network.

Using mesh network requires the design of new interactions between the layers radio, media access and network completely oriented to multi-hop routing. Currently, most mesh network solutions only apply transparently a routing protocol at the network level, usually on the IEEE 802.11. That’s why the possibility that provides the project to designing a new medium access mechanism oriented to mesh networks is an important novelty for the market and even more if one considers the use of multi-radio routing, since it's still a low implantation technology on the market.

Adding that the restrictions resulting from the use of a narrowband radio channel represent an opportunity to optimize mechanisms used in a wireless mesh network.



Project aim is purely research and the expected result is a set of knowledge that can industrialize with the shortest possible time resulting in products with new functionalities. In particular, at the end, this project will result in a mesh network solution applicable to FARELL narrow-band radio devices. To do this, we must obtain the following results:

  • Multi-hop network basic skills: network auto configuration, active routes creation and maintenance and robustness in view of link falls.
  • Routing based on QoS metrics to guarantee performance of traversing the network flows.
  • Multiradio routing capability including: development of an efficient algorithm for channel assignment, possible use of a common signaling channel and dynamic reallocation mechanisms.
  • Radio levels, MAC and network optimization, depending on radio mesh network characteristics and requirements.
  • Enable new applications design based on characteristics of mesh network and also facilitate the network management, configuration and maintenance.
09/2010 to 12/2011
Avanza Competitividad I+D 2010
282.556 €