Summary
Asia-Pacific Network Operations and Management Symposium
2019
Session Number:TS4
Session:
Number:TS4-3
Smart Control for Energy Efficient Networking of IEEE 802.11ah-based IoT
Min-Cheol Kim, Young-Tak Kim,
pp.-
Publication Date:2019/9/18
Online ISSN:2188-5079
Summary:
Since Internet of Things (IoT) is configured to support up to 8000 various IoT devices scattered within 1 Km range, smart controls of transmission power and wireless channel according to the communication environment and channel status are essential feature for energy-efficient IoT networking. Also smart channel selection and cognitive switching are necessary in order to mitigate the channel interferences and environmental noises. In this paper, we propose a smart control for energy efficient networking of IEEE 802.11ah-based IoT with hybrid slotted CSMA/CA-TDMA (HSCT) MAC protocol. The proposed HSCT MAC protocol enhances the performance of IEEE 802.11ah on sub-1GHz RF channel with limited transmission rate. In the HSCT, the contention among IoT devices IoT devices is minimized by employing scheduled TDMA slot (T-slot), while T-slot requests are handled by CSMA/CA contention-based MAC scheme. The proposed smart RF control scheme has been implemented on TI CC1312R high-performance Sub-1GHz wireless launch pad. This paper also provides the performance analysis of the proposed scheme based on measured results.