Table 7 Summarizing contributions of the major research projects for M2M communications

METIS 2020

Nov. 2013–May 2015

∙ Scenarios, requirements, and KPIs for future M2M

[86]

∙ Requirements for new air interfaces

[83]

∙ Novel radio link concepts for M2M

[153]

∙ Radio resource allocation techniques

[153]

∙ M2M traffic offloading ideas/low signaling overhead

[154]

∙ M2M via D2D communications

[153]

∙ M2M massive random access

[154]

EXALTED

Sept. 2010–Mar. 2013

∙ Impact of M2M applications on business models

[155]

∙ LTE-M algorithms and procedures

[156, 157]

∙ EXALTED M2M system architecture

[158]

∙ Optimizing a Linux operating system for M2M

[159]

∙ Device management

[160]

∙ Capillary M2M traffic aggregation

[161]

∙ Security solutions for M2M

[162]

∙ Security solutions for P2P relaying

[163]

LOLA

Oct. 2010–Mar. 2013

∙ Evaluation of M2M application scenarios

[164]

∙ Access layer techniques for low latency robust transmissions

[165]

∙ Spectral efficiency with M2M

[166]

∙ M2M in long-range and short-range mesh networks

[165]

∙ Transmission technologies for M2M gaming services

[165, 167]

∙ PHY/MAC design procedures, algorithms, and scheduling

[165, 167]

∙ Characterization and modeling of traffic

[167]

∙ Experimentation traffic measurement testbench etc.

[168]