From IEEE 802.15.4 to IEEE 802.15.4e: A Step Towards the Internet of Things
نویسندگان
چکیده
Wireless Sensor and Actuator Networks (WSANs) are expected to have 1 a key role in the realization of the future Internet of Things that will connect to the 2 Internet any kind of devices, living beings, and things. A number of standards have 3 been released over the last years to support their development and encourage inter4 operability. In addition IETF has defined a set of protocols to allow the integration of 5 sensor and actuator devices into the Internet. In this chapterwe focus on the 802.15.4e, 6 released by IEEE in 2012 to enhance and add functionality to the previous 802.15.4 7 standard, so as to address the emerging needs of embedded industrial applications. 8 We describe how the limitations of the 802.15.4 standard have been overcome by 9 the new standard, and we also show some simulation results to better highlight this 10 point. 11
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