LoRa is an unlicensed band-based low-power and wide-area (LPWA) technology, which has great network resource constraints because of its limited available frequency resource due to narrow industrial scientific medical (ISM) band, long response time due to its low data rate and low resource utilization due to its primitive medium access control (MAC). This paper studies […]
Jan
Jan
The single-hop star-of-stars topology of current Low Power Wide Area Network (LPWAN) is simple and robust but still lack of network coverage because of signal attenuation. We present a forwarding mechanism to increase the coverage and re-liability of LPWAN. Two key characteristics of our approach are on-demand and opportunistic forwarding. While most previous studies adopt […]
Oct
Low-Power Wide-Area Networking (LPWAN) technology is attracting attention as a communication technology for IoT(Internet of Things) by enabling low-power and long-distance transmission. In this paper, based on Long Range (LoRa) technologies, one of representative technologies in LPWAN area, we suggest the need for multi-hop communication class to solve the communication shadow area and discuss the […]
Jan
Internet of Things(IoT) technology is an global infra that offers intellectual services combined with situation recognizing knowledge and communication between humans and objects and among objects, which has become core technology in hyper-connected society with its Cloud and big data technology. To connect objects, low range and low power communication technology was needed, therefore, LoRaWAN […]
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