Public Safety Network Requirements
Emergency workers such as police, firefighters, and paramedics need excellent situational awareness in order to do their jobs effectively. In addition, certain emergency situations will require paramedics to maintain high bandwidth, real-time connectivity with hospitals and local command posts while traveling to and returning from the site of the emergency. This can be facilitated if the responders are able to make use of whatever access networks they pass through while in transit. In addition, in very serious emergency situations access points for a particular network type may become overloaded or they may be degraded or destroyed. Emergency response communications equipment must be capable of responding to these unanticipated outages by switching conductivity to other access network technologies without requiring intervention on the part of the user. Figure 1. Our two-step approach consisted of obtaining network performance results using the path-based reference model and then comparing these results with the application performance requirements as shown in Figure 2. This analysis was used as a basis to derive recommendations for the network performance quantitative requirements.
Figure 1 - Hierarchical Path based
Figure 2 - General Path based Network Performance
This work was supported by NIST/Office of Law Enforcement Standards (OLES).