Dear Colleagues,

Due to the technological advances that have enabled their usage in several relevant and different scenarios, in recent years, Wireless Sensor Networks have met growing popularity and, likewise, an increasing research interest.

Among other applications, we may recall:

- smart cities (smart parking, smart lighting, noise and traffic congestion control, waste management);

- environmental monitoring (air pollution control, fire detection);

- domotics and home automation (smart homes, Internet of Things);

- healthcare (patient monitoring, condition control for medical appliances, e.g., vaccine storage freezers).

The underlying technical complexity associated with these applications and the limited resources available to the individual sensing devices, in terms of both hardware capabilities and battery capacity, represent a continuous source of new difficult challenges for the Optimization and Operational Research scientific communities.

This Special Issue will focus on novel research directions in this challenging field. Topics of interest include, but are not limited to, distributed or centralized exact and heuristic approaches for the following problem areas:

- sensor activation scheduling to prolong network lifetime;

- sensor transmission scheduling to avoid collisions;

- efficient tracking for moving targets;

- sensor deployment for area monitoring;

- mobility models and protocols for WSNs with mobile nodes;

- efficient data transmission and multi-hop routing protocols;

- failure-resistant robust protocols;

Published Papers (2 papers)