Long-range communications in unlicensed bands: the rising stars in the IoT and smart city scenarios

@article{Centenaro2016LongrangeCI,
  title={Long-range communications in unlicensed bands: the rising stars in the IoT and smart city scenarios},
  author={Marco Centenaro and Lorenzo Vangelista and Andrea Zanella and Michele Zorzi},
  journal={IEEE Wireless Communications},
  year={2016},
  volume={23},
  pages={60-67}
}
Connectivity is probably the most basic building block of the IoT paradigm. Up to now, the two main approaches to provide data access to things have been based on either multihop mesh networks using short-range communication technologies in the unlicensed spectrum, or long-range legacy cellular technologies, mainly 2G/GSM/GPRS, operating in the corresponding licensed frequency bands. Recently, these reference models have been challenged by a new type of wireless connectivity, characterized by… Expand
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