This book constitutes the refereed proceedings of the 8th International Workshop on Multiple Access Communications, MACOM 2015, held in Helsinki, Finland, in September 2015.

The 12 full papers presented were carefully reviewed and selected from 18 submissions. They describe the latest advancements in the field of multiple access communications with an emphasis on wireless sensor networks; physical layer techniques; resources handling and allocation; medium access control protocols and video coding.

This book constitutes the proceedings of the 12th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2017, held in Toulouse, France, in May 2017.

The 12 full papers presented together with 2 demo papers in this volumewere carefully reviewed and selected from 16 submissions.

The volume features contributions in the theory or practice of intelligent transportation systems (ITS) and communication technologies for:

• Vehicles on road: e.g. cars, tracks and buses;
• Air: e.g. aircraft and unmanned aerial vehicles;...