A MANET-based semantic traffic management framework for ubiquitous public safety networks

2012 ◽  
Vol 14 (12) ◽  
pp. 1127-1142 ◽  
Author(s):  
Nusrat Ahmed Surobhi ◽  
Abbas Jamalipour
Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3853 ◽  
Author(s):  
Panagiotis Vamvakas ◽  
Eirini Eleni Tsiropoulou ◽  
Symeon Papavassiliou

Modern Public Safety Networks (PSNs) are assisted by Unmanned Aerial Vehicles (UAVs) to provide a resilient communication paradigm during catastrophic events. In this context, we propose a distributed user-centric risk-aware resource management framework in UAV-assisted PSNs supported by both a static UAV and a mobile UAV. The mobile UAV is entitled to a larger portion of the available spectrum due to its capability and flexibility to re-position itself, and therefore establish better communication channel conditions to the users, compared to the static UAV. However, the potential over-exploitation of the mobile UAV-based communication by the users may lead to the mobile UAV’s failure to serve the users due to the increased levels of interference, consequently introducing risk in the user decisions. To capture this uncertainty, we follow the principles of Prospect Theory and design a user’s prospect-theoretic utility function that reflects user’s risk-aware behavior regarding its transmission power investment to the static and/or mobile UAV-based communication option. A non-cooperative game among the users is formulated, where each user determines its power investment strategy to the two available communication choices in order to maximize its expected prospect-theoretic utility. The existence and uniqueness of a Pure Nash Equilibrium (PNE) is proven and the convergence of the users’ strategies to it is shown. An iterative distributed and low-complexity algorithm is introduced to determine the PNE. The performance of the proposed user-centric risk-aware resource management framework in terms of users’ achievable data rate and spectrum utilization, is achieved via modeling and simulation. Furthermore, its superiority and benefits are demonstrated, by comparing its performance against other existing approaches with regards to UAV selection and spectrum utilization.


Author(s):  
Steve Sawyer ◽  
Robert Schrier ◽  
Jane Fedorowicz ◽  
Martin Dias ◽  
Christine Williams ◽  
...  

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Ali Masood ◽  
Muhammad Mahtab Alam ◽  
Yannick Le Moullec ◽  
Luca Reggiani ◽  
Davide Scazzoli ◽  
...  

2018 ◽  
Vol 33 (4) ◽  
pp. 326-344 ◽  
Author(s):  
Jane Fedorowicz ◽  
Steve Sawyer ◽  
Arthur Tomasino

We focus on networked arrangements of digital resources that are shared among otherwise independent units to advance conceptual and empirical insights about their governance. We are motivated by the simple observation that, increasingly, independent organizations are engaging in shared activities, often relying on purpose-built digital infrastructures to support this move to inter-dependence. To advance current conceptualizations of networked governance, we draw on data from 42 public safety networks and use fuzzy-set qualitative comparative analysis. We do so because fsQCA allows us to account for the realities of inter-dependence among the concepts and variables we consider and to illuminate the multiple viable governance patterns that are possible. The results show the importance of network-level governance competencies to manage stakeholders and information infrastructure to achieve high effectiveness of PSN. Analysis makes clear that there exist five configurations of PSN governance practices that enable high levels of network governance effectiveness. Common to all these configurations are the network-level competence in managing both stakeholders and the digital infrastructure, suggesting these are necessary (but not sufficient) network-level governance competencies. Building from the analysis, we advance the role of specific network-level governance competencies, and the current conceptualization of network governance more broadly.


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