Name
Title | ||
|---|---|---|
LoRa+: An extension of LoRaWAN protocol to reduce infrastructure costs by improving the Quality of Service |
Abstract | ||
|---|---|---|
LoRa is a popular Low Power Wide Area Network (LPWAN) standard designed for the Internet of Things (IoT). The MAC layer protocol of LoRa is LoRaWAN. It still needs some improvements regarding the measured Quality of Service (QoS) i.e. rejected packet rate and the Packet Error Rate (PER). In this paper, we propose a LoRa+ as a new mechanism to overcome the shortcomings of LoRaWAN. Currently, at the end of each uplink operation, a standard LoRaWAN-based end device opens two time slots (RX1 and RX2) to receive from the gateway the channel parameters: the spreading factor and the operating frequency. These parameters have to be taken into account in the next uplink that sometimes happens few hours after (highly application dependent). During this interval, the channel conditions may change adversely impacting the performance. In our work, we propose to modify LoRaWAN MAC Layer for both Class A and Class B to address this issue. Instead of waiting the end of the uplink operation, the time slot dedicated to receive the channel parameters is shifted so that these parameters are sent just before the transmission slot. We show by simulations on Matlab that our modification reduces significantly the rejected packet rate and PER by up to 20% compared to LoRaWAN for small and medium size cities when the number of EDs is usually less than 500. Consequently, the number of gateway required in the network is also reduced, leading to the reduction of the network infrastructure costs. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1016/j.iot.2020.100176 | Internet of Things |
Keywords | Field | DocType |
LPWAN,LoRaWAN,QoS,Rejected Packet Rate,Packet Error Rate,LoRa+ | MATLAB,Computer science,Computer network,Quality of service,Communication channel,Default gateway,Wide area network,LPWAN,Bit error rate,Telecommunications link | Journal |
Volume | ISSN | Citations |
9 | 2542-6605 | 2 |
PageRank | References | Authors |
0.37 | 0 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hussein Mroue | 1 | 2 | 0.37 |
| Benoît Parrein | 2 | 2 | 0.37 |
| Sofiane Hamrioui | 3 | 46 | 10.63 |
| Przemyslaw Bakowski | 4 | 2 | 0.37 |
| Abbass Nasser | 5 | 2 | 0.37 |
| Eduardo Motta Cruz | 6 | 3 | 1.06 |
| Wilfried Vince | 7 | 2 | 0.37 |