1. 20) LoRa Alliance : LoRaWANTM 1.1 Specification, < https://lora-alliance.org/resource-hub/lorawantm-specification-v11>(入手2019.1.3)
2. 21) SEMTECH : LoRaTM Modulation Basics (Revision 2, May 2015), <https://www.semtech.com/uploads/documents/an1200.22.pdf>(入手2019.1.3)
3. 22) SEMTECH : SX1272/3/6/7/8: LoRa Modem Designer’s Guide (Revision 1 July 2013). < https://www.semtech.com/uploads/documents/LoraDesignGuide_STD.pdf>(入手2019.1.3)
4. 移動電波伝搬「奥村カーブ」の確立と世界初商用セルラ電話の誕生に向けて