Department of Electronics and Communications Engineering Internet of Things (IoT): Wide-area IoT protocols* *Long-range IoT radio access technologies (RATs) Department of Electronics and Communications Engineering Tampere University of Technology, Tampere, Finland Vitaly Petrov: [email protected]
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Internet of Things (IoT): Wide-area IoT protocols* · Internet of Things (IoT): Wide-area IoT protocols* *Long-range IoT radio access technologies (RATs) Department of Electronics
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Department of Electronics and Communications Engineering
Internet of Things (IoT): Wide-area IoT protocols*
*Long-range IoT radio access technologies (RATs)
Department of Electronics and Communications Engineering
Tampere University of Technology, Tampere, Finland
*N. Himayat, S. Talwar, K. Johnsson, S. Andreev, O. Galinina, A. Turlikov, ”Proposed IEEE 802.16p Performance Requirements for Network Entry by Large Number of Devices”, IEEE 802.16 Broadband Wireless Access Working Group C80216p-10-0006, 2010.
Department of Electronics and Communications Engineering
Deployment requirements
q Wi-Fi coverage area ~50 meters q ~200 MTC devices per cluster
*A. Maeder, P. Rost, D. Staehle, ”The Challenge of M2M Communications for the Cellular Radio Access Network”, 11th Wurzburg Workshop on IP EuroView2011, 2011
Department of Electronics and Communications Engineering
Conventional system
Conventional system works bad
q Scales poorly q Too much overhead
Department of Electronics and Communications Engineering
Aggregation techniques
*defined by IEEE 802.11-2007
*defined by IEEE 802.11n-2009
q MAC layer aggregation
q PHY layer aggregation
Department of Electronics and Communications Engineering
Aggregation results (asymptotic)
q Potential for some improvement
Department of Electronics and Communications Engineering
Numerical results (optimistic)
q Scalable MTC support is challenging
Department of Electronics and Communications Engineering
Approach 1. Major conclusions
q Main results ― Conventional IEEE 802.11-2007 scales poorly for MTC ― IEEE 802.11n-2009 aggregation looks promising, but still
non-sufficient
Department of Electronics and Communications Engineering