10 papers
Accelerating Update Broadcasts Over LoRaWAN Downlink via D2D Cooperation
Anshika Singh, Siddhartha S. Borkotoky
Broadcast distribution of updates (e.g., security patches, machine learning models) from a server to end devices (EDs) is a critical requirement in the Internet of Things (IoT). In…
Balancing the Energy Consumption and Latency of Over-the-Air Firmware Updates in LoRaWAN
Siddhartha S. Borkotoky
Over-the-air firmware updates are crucial for mitigating security threats and maintaining up-to-date device functionality in Long Range Wide Area Networks (LoRaWANs). LoRaWAN end d…
Federated Learning Over LoRa Networks: Simulator Design and Performance Evaluation
Anshika Singh, Siddhartha S. Borkotoky
Federated learning (FL) over long-range (LoRa) low-power wide area networks faces unique challenges due to limited bandwidth, interference, and strict duty-cycle constraints. We de…
Message Replication for Improving Reliability of LR-FHSS Direct-to-Satellite IoT
Sonu Rathi, Siddhartha S. Borkotoky
Long-range frequency-hopping spread spectrum (LR-FHSS) promises to enhance network capacity by integrating frequency hopping into existing Long Range Wide Area Networks (LoRaWANs).…
Coded Relaying in LoRa Sensor Networks
Siddhartha S. Borkotoky, Pavan Datta Abbineni, Vatsalya Chaubey +1
To enhance the reliability of LoRa sensor networks, we propose two opportunistic forwarding protocols in which relays overhear sensor-to-gateway messages and periodically forward t…
The LoRa Modulation Over Rapidly-Varying Channels: Are the Higher Spreading Factors Necessarily More Robust?
Harishwar Reddy Bapathu, Siddhartha S. Borkotoky
The chirp spread spectrum (CSS) modulation scheme is employed by the physical layer of the Long Range (LoRa) communication technology. In this paper, we examine the performance of…