Adame, ToniBel, AlbertBellalta, BorisBarceló Vicens, JaumeOliver Riera, Miquel2020-04-172020-04-172014Adame T, Bel A, Bellalta B, Barceló J, Oliver M. IEEE 802.11ah: the WiFi approach for M2M communications. IEEE Wirel Commun. 2014 Dec;21(6):144-52. DOI: 10.1109/MWC.2014.70009821536-1284http://hdl.handle.net/10230/44264M2M communications are positioned to be one of the fastest growing technology segments in the next decade. Sensor and actuator networks connect communication machines and devices so that they automatically transmit information, serving the growing demand for environmental data acquisition. The IEEE 802.11ah Task Group is working on a new standard to address the particular requirements of M2M networks: a large number of power-constrained stations; a long transmission range; small and infrequent data messages; low data rates; and a non-critical delay. This article explores the key features of this new standard, especially those related to the reduction of energy consumption in the medium access control layer. Given these requirements, a performance assessment of IEEE 802.11ah in four common M2M scenarios, i.e. agriculture monitoring, smart metering, industrial automation, and animal monitoring, is presented.application/pdfeng© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. http://dx.doi.org/10.1109/MWC.2014.7000982info:eu-repo/semantics/articlehttp://dx.doi.org/10.1109/MWC.2014.7000982IEEE 802.11ahM2MWLANsWSNsPower saving mechanismsinfo:eu-repo/semantics/openAccess