Broadband Mesh networks are important enablers for next generation communications and video surveillance systems. Generally, such a network can be formed and re-configured on-the fly and does not require any underlying infrastructure. Mesh networks may be mobile, fixed and/or inter-networked with other networks. Central to the Mesh networks are re-configurability, self-organization and reliability.
Mobile Ad-hoc Networks (MANETs)
The concept of a Mobile Ad hoc Network (MANET) was initially inspired during the 1980s by the Packet Radio Networks program of the Defense Advanced Research Project Agency (DARPA), the same organization that funded the invention and creation of the Internet (originally called ARPANET). At this time the military formulated a vision of a network that would allow personnel to operate on the move in any location in the world, without relying on a fixed infrastructure. A MANET is a self-configuring wireless network. MANETs support communications in mobile networks by incorporating routing capability into the mobile nodes. Such networks are expected to have dynamic topologies. A typical MANET is decentralized and the mobile nodes themselves execute all network activities. The design of network protocols for these networks is extremely complex. Each node can act as a repeater so high throughput, long range and multi-frequency capabilities are important characteristics.
Vehicular Ad-hoc Networks (VANETs)
Until now, there has been limited communications between all convoy vehicles and limited navigational aids to assist in controlling the convoy. The vehicular ad hoc network (VANET) is a form of MANET, which is used for communication among vehicles and between vehicles and roadside equipment. The VANETs formed by a number of nearby peers is organized in a fully decentralized fashion, in order to cope with the continuous arrival and departure of peers. At the foundation is an umbrella broadband network that connects every vehicle with voice, video and data transmission while moving with the convoy. The location of every equipped vehicle in relation to its intended route is available to every other equipped vehicle, providing a cohesive view of the convoy.
Natural Disaster and Public Safety
Having a communications system up and running immediately is crucial in creating an efficient and coordinated recovery effort. The main characteristics of the ad-hoc networks are their minimal requirements for configuration, which makes them ideal for rapid deployment applications (e.g. during the “Golden Hour” by First Responders). Despite the absence of any existing telecommunications infrastructure, the ad-hoc network systems can be set-up and operational very quickly. When operated with satellite based Internet connectivity, ad-hoc networking devices enable Internet access and VoIP communications to large areas and many users.
Prism-WiFi – The Lifeline of Broadband Mesh Networks
In summary, different applications of the Mesh Netowrks require different frequency of operation. Doodle Labs offers a broad line of form factor compatible transceivers to meet these requirements. These transceivers have redefined the bounds of wireless communication and control for hazardous duty robots. The Prism-WiFi transceiver performance is unmatched when operating deep within urban, concrete and steel structures in non-line-of-sight operations.
The Doodle Labs Prism-WiFi line of transceivers provide high throughput, low latency/jitter, IP connectivity that enables new capabilities by streaming HD video, audio and sensory data. These new capabilities promise the unrestrained maneuverability required by law enforcement, military and security operators in the most challenging environments, foregoing the inconvenience of cables to keep danger at a distance.
Doodle Labs offers an extensive line of best-in-class embedded MIMO radio transceivers that operate between the 200 MHz to 7 GHz frequency range. They feature the state-of-the-art, spectrum-efficient OFDM technology for Near Line of Sight (NrLOS) operation and high data throughput. In addition, our transceivers employ the Doodle Labs’ proprietary Prism-WiFi technology to achieve the industry’s best RF characteristics in terms of interference immunity, Tx power, Rx sensitivity, Antenna Diversity and data throughput. The Prism-WiFi radios are small and lightweight. They consume low power and they are designed to operate in the most demanding environments.