Differentiated QoS to Heterogeneous IoT Nodes in IEEE 802.11ah RAW Mechanism

IEEE 802.11ah protocol is specifically designed to provide network connectivity to a large number of energy efficient heterogeneous internet of things (IoT) devices. Restricted access window (RAW) mechanism of the protocol is an innovative feature which aims at reducing medium access contention by slotting the beacon interval and allowing limited number of nodes to contend in a specific slot. In this paper, we evaluate important medium access control (MAC) layer performance metrics of differentiated quality of service (QoS) heterogeneous IoT nodes in IEEE 802.11ah RAW mechanism. Our analysis evaluates the feasibility of coexistence of priority and non-priority traffic in IoT devices without degrading network performance.

[1]  Ali Hazmi,et al.  Performance evaluation of IEEE 802.11ah and its restricted access window mechanism , 2014, 2014 IEEE International Conference on Communications Workshops (ICC).

[2]  Jelena Mišić,et al.  Performance Analysis of Downlink MU-TXOP Sharing in IEEE 802.11ac , 2017, IEEE Transactions on Vehicular Technology.

[3]  Albena Mihovska,et al.  Performance evaluation of IEEE 802.11ah systems , 2016, 2016 24th Telecommunications Forum (TELFOR).

[4]  Mounir Ghogho,et al.  Throughput enhancement of restricted access window for uniform grouping scheme in IEEE 802.11ah , 2017, 2017 IEEE International Conference on Communications (ICC).

[5]  Jeroen Famaey,et al.  Evaluation of the IEEE 802.11ah Restricted Access Window mechanism for dense IoT networks , 2016, 2016 IEEE 17th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM).

[6]  Eli De Poorter,et al.  Supporting Heterogeneous IoT Traffic using the IEEE 802.11ah Restricted Access Window , 2017, SenSys.