Sigfox, the low-power wide area network being deployed by Arqiva in the UK secured a new round of funding to drive its international expansion. As discussed in a previous post, Sigfox allows devices to remain in contact with a network for several years using normal AA-style batteries, and represents a much lower cost alternative to cellular networks for applications such as metering. This makes it quite interesting that NTT Docomo, Telefonica and SK Telecom are amongst its investors, clearing seeking to embrace these new-style networks to complement their existing cellular (2G, 3G, 4G) offerings.
