Energy-Aware Algorithm for Assignment of Relays in LPWAN
| Author | Grochla K.; Strzoda A.; Marjasz R.; Głomb P.; Książek K.; Łaskarzewski Z. |
|---|---|
| Title | Energy-Aware Algorithm for Assignment of Relays in LPWAN |
| Journal | Transactions on Sensor Networks |
| Year | 2022 |
| Status | Published |
| Volume | 18 |
| Issue | 4 |
| DOI | 10.1145/3544561 |
| URL | https://dl.acm.org/doi/10.1145/3544561?cid=99659913397 |
| Abstract | <p>The Low Power Wide Area Networks allow maintaining connectivity with devices over a distance of a few kilometres. However, due<br /> to the presence of obstacles the communication range in an urban environment may be shorter, which creates multiple blind spots or<br /> areas with limited coverage. The nodes acting as relays may solve this problem by forwarding the data from other devices with poor<br /> connectivity. We propose and investigate a novel algorithm that assigns devices to the relay role while keeping the battery constraints.<br /> We define the algorithm, describe the simulation testbed, and present performance evaluation in several scenarios, including real-life<br /> topologies of IoT networks. The proposed relay selection scheme allows increasing the lifetime of the network by selecting the relay<br /> taking into account the current battery capacity. Additionally, it outperforms a previously proposed relay selection algorithm for LP<br /> WAN, showing an average 4% decrease in transmission time and an order of magnitude lower computation complexity.</p> |