Evaluation of Latency in IEEE 802.11ad

It has increasingly become apparent that bandwidth of transmissions will no longer be a constraint in new generations of wireless communications. This is expected to drastically lower the latency in the transmissions and bring about improvement in the QoS of the transmissions. However, the new radio access technologies (e.g. mmWave) will have issues such as beamforming, beam tracking, and resultant overheads which can cause bottlenecks in reduction of latency. New techniques will then be required to overcome these bottlenecks. Medium access is no longer being considered only in terms of either contention-based or contention-free modes; hybrid approaches such as in IEEE 802.11ad are now being implemented. Moreover, the traditional concepts of transmission control, reliability, etc., require new thinking in view of the change brought about by the new generations of wireless transmissions. This paper evaluates the impacts on latency in IEEE 802.11ad which is the settled protocol for short-distance LAN in 60 GHz mmWave domain.

[1]  Javier Gozalvez,et al.  5G Tests and Demonstrations [Mobile Radio] , 2015, IEEE Vehicular Technology Magazine.

[2]  Gerhard P. Fettweis,et al.  The Tactile Internet: Applications and Challenges , 2014, IEEE Vehicular Technology Magazine.

[3]  Sundeep Rangan,et al.  MAC layer frame design for millimeter wave cellular system , 2016, 2016 European Conference on Networks and Communications (EuCNC).

[4]  Theodore S. Rappaport,et al.  Millimeter Wave Channel Modeling and Cellular Capacity Evaluation , 2013, IEEE Journal on Selected Areas in Communications.

[5]  S. Dutta,et al.  5G MmWave Module for the ns-3 Network Simulator , 2015, MSWiM.

[6]  Anass Benjebbour,et al.  Design considerations for a 5G network architecture , 2014, IEEE Communications Magazine.

[7]  Sundeep Rangan,et al.  Achieving Ultra-Low Latency in 5G Millimeter Wave Cellular Networks , 2016, IEEE Communications Magazine.

[8]  Preben E. Mogensen,et al.  Achieving low latency and energy consumption by 5G TDD mode optimization , 2014, 2014 IEEE International Conference on Communications Workshops (ICC).

[9]  Jussi Turkka,et al.  A Novel Radio Frame Structure for 5G Dense Outdoor Radio Access Networks , 2015, 2015 IEEE 81st Vehicular Technology Conference (VTC Spring).

[10]  Ming Xiao,et al.  Low-Latency Millimeter-Wave Communications: Traffic Dispersion or Network Densification? , 2017, IEEE Transactions on Communications.

[11]  Theodore S. Rappaport,et al.  Millimeter-Wave Cellular Wireless Networks: Potentials and Challenges , 2014, Proceedings of the IEEE.

[12]  Jan Markendahl,et al.  EU FP7 INFSO-ICT-317669 METIS, D1.1 Scenarios, requirements and KPIs for 5G mobile and wireless system , 2013 .