Ian H. de Andrade, Luís Henrique M.K. Costa, Rodrigo S. Couto
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引用次数: 0
Abstract
This paper proposes a dynamic strategy for the allocation of resources used by end devices in LoRa networks, which employ chirp spread spectrum modulation. The proposed battery life optimization (BLO) strategy splits end devices into different spreading factor (SF) groups. The basic idea is to reduce the collisions between end devices using the same SF. Moreover, BLO also considers the current battery level of each end device, and periodically reallocates the SF groups to optimize the battery consumption of all nodes and extend the network lifetime. The main innovation of BLO is to consider in addition to the RSSI the air time of different SFs as a weighting factor in SF allocation. We compare BLO to state-of-the-art (SoA) SF-allocation strategies, achieving 77% improvement in successful message delivery compared to LoRaWAN’s ADR scheme. Furthermore, we obtain better energy efficiency with BLO. In a scenario with one gateway and 500 devices operating over 24 h, the remaining energy with BLO is 10 and 3.6 times larger than with EXPLoRa-SF and EXPLoRa-AT SoA strategies, respectively.
期刊介绍:
The Ad Hoc Networks is an international and archival journal providing a publication vehicle for complete coverage of all topics of interest to those involved in ad hoc and sensor networking areas. The Ad Hoc Networks considers original, high quality and unpublished contributions addressing all aspects of ad hoc and sensor networks. Specific areas of interest include, but are not limited to:
Mobile and Wireless Ad Hoc Networks
Sensor Networks
Wireless Local and Personal Area Networks
Home Networks
Ad Hoc Networks of Autonomous Intelligent Systems
Novel Architectures for Ad Hoc and Sensor Networks
Self-organizing Network Architectures and Protocols
Transport Layer Protocols
Routing protocols (unicast, multicast, geocast, etc.)
Media Access Control Techniques
Error Control Schemes
Power-Aware, Low-Power and Energy-Efficient Designs
Synchronization and Scheduling Issues
Mobility Management
Mobility-Tolerant Communication Protocols
Location Tracking and Location-based Services
Resource and Information Management
Security and Fault-Tolerance Issues
Hardware and Software Platforms, Systems, and Testbeds
Experimental and Prototype Results
Quality-of-Service Issues
Cross-Layer Interactions
Scalability Issues
Performance Analysis and Simulation of Protocols.