Book excerpt: Wireless Public Safety Networks, Volume Two: A Systematic Approach presents the latest advances in the wireless Public Safety Networks (PSNs) field, the networks established by authorities to either prepare the population for an eminent catastrophe, or those used for support during crisis and normalization phases. Maintaining communication capabilities in a disaster scenario is crucial for avoiding loss of lives and damages to property. This book examines past communication failures that have directly contributed to the loss of lives, giving readers in-depth discussions of the public networks that impact emergency management, covering social media, crowdsourcing techniques, wearable wireless sensors, moving-cells scenarios, mobility management protocols, 5G networks, broadband networks, data dissemination, and the resources of the frequency spectrum. - Provides a focus on specific enabling technologies which can help the most on the deployment and usage of PSNs in real world scenarios - Proposes a general framework that has the capability to fulfill the public safety requirements and dynamically adapt to different public safety situations - Investigates the problem of data dissemination over PSNs, presenting a review of the state-of-the-art of different information and communication technologies