TY - JOUR
AU - Krzysztof Grochla
AU - Anna Strzoda
AU - Rafał Marjasz
AU - Przemysław Głomb
AU - Kamil Książek
AU - Zbigniew Łaskarzewski
AB - <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>

BT - Transactions on Sensor Networks
DA - 11/2022
DO - 10.1145/3544561
IS - 4
LA - eng
N2 - <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>

PY - 2022
SE - Article No. 60
T2 - Transactions on Sensor Networks
TI - Energy-Aware Algorithm for Assignment of Relays in LPWAN
UR - https://dl.acm.org/doi/10.1145/3544561?cid=99659913397
VL - 18
ER -