Tag: Power for Internet Infrastructure

Report available! Network remote powering through quasi-passive reconfigurable nodes

This project investigated the remote powering of the Internet using quasi-passive network nodes, where the power required for the providing Internet in remote network nodes without local power supply is remotely provided optically. The pump light for remote powering of network nodes is transmitted using the same data transmission fibre to reuse the existing network infrastructure. The major objectives of the project are to investigate, develop and optimize the network node and the remote power scheme, to increase the scalability, traffic handling capability and efficiency, via both theoretical study and numerical simulations.

The project was originally planned to be completed in 12 months. However, due to the interruption of COVID-19, the university campus was locked down for a prolonged period and no access to the university was allowed, This interruption resulted in delays in the project, and the project was completed at the end of May, 2021 (the research paper was published in mid December, 2021).

Although the project has been significantly affected by the COVID-19 situation, the project team managed to adjust the plan slightly to focus more on the theoretical study, modelling and analysis during this period. The main activities conducted in this project include:

The model of individual components in the node has been completed;
The signal propagation model in the network node has been built;
The theoretical model of the remote powering scheme has been established;
The remote powering scheme based network node has been analyzed theoretically and through comprehensive numerical simulations;
The complexity of the remote powering scheme based network node has been analyzed;
The impact of the opticam pump on the signal transmission in fibre has been studied;
The impact of different data modulation formats in remotely powered network node has been investigated;
The multiple optical pumps scheme has been proposed and studied to further increase the availability of power to nodes without local power supply, and two different configurations of the multiple optical pumps scheme have been analyzed and compared;
Large-scale optical networks with the proposed quasi-passive network nodes and remote powering technique have been simulated, and the statistical performance has been investigated.

The final report is available here.

Report available! Telemetering the telltale signs of power issues of wireless internet relays

The TellTale project was conceived with aim of addressing the problem of measurement and projection of the power uptime duration of wireless internet relays. In rural areas and in areas where such projections are not available, operators often fail to address downtimes in a timely manner, thereby increasing the number and duration of downtimes and/or fail to project the power needs of a relay properly. These issues have direct adverse economic consequences for both providers and users

In line with this, the project objectives were to:
1. Identify an affordable and replicable sensor+SBC + internet uplink power charge and discharge module
2. Create a cloud-based, machine-learning supported, data ingestion, storage, data prep, analysis and reporting system.
3. Develop an easy-to0use reporting and alert system with PC and mobile applications (Android)
4. Measure and report on the cost-saving and improved uptime impact of the project
5. Disseminate the project findings and share the systems design
6. Create a paid support system for interested parties.

The project has achieved most of its objectives. An AirJaldi “TellTale” system, capable of measuring battery voltage and generating indicators and alerts based on the its change over time, has been built, demonstrated and is ready for distribution and sharing. At a device cost of around US $20 (hardware components) the system is affordable, as are the software packages and cloud hosting services required.

AirJaldi will offer TellTale using a Freemium model. Interested users can either download the source codes and manuals at no cost from Github (accessed directly or via our website and those of other partners), or choose one of various models of paid support offered by AirJaldi.

TellTale’s User Interface (UI) was designed to be clear and easy to use and update and is available in both computer and mobile version. An Android APK, offering a stripped-down version of the web UI with a focus on alerts, was also created and made available for users.

We plan to continue working on improving and enriching TellTale in the coming months and will share information and resources.

The final report is available here.