Improving Medium Access in Dynamic Wireless Sensor Networks
Georgios Z. Papadopoulos · HAL (Le Centre pour la Communication Scientifique Directe) · 2015
The Internet of Things brings unique constraints and a huge variety of applications. This forces to be able to establish energy efficient communications (and nevertheless low-delay) within highly dynamic networks. We focused on improving the medium access control (MAC) to optimize the management of wireless communications, the main source of energy consumption in these networks. This thesis discusses the self-adaptation of asynchronous MAC solutions and shows that a localized cooperation between communicating objects can maintain an efficient sharing of the communication resource in highly dynamic networks (traffic, mobility, failures). In addition to a reasoning on the tools of simulation and experimentation, we conducted comprehensive evaluation campaigns of our contributions that address traffic changes and mobility in dense networks.