Abstract
Proximity Services (ProSe) and Wi-Fi are two promising technologies that may provide support for Mission Critical Voice (MCV) applications in remote and rural areas by enabling Device-to-Device (D2D) communication. In this paper, several performance metrics of ProSe and Wi-Fi are evaluated and compared side-by-side under various configurations. The ns-3 simulation results show that ProSe outperforms Wi-Fi in terms of coverage range and access time with a medium traffic load, while Wi-Fi has a shorter access time under a light traffic load. In addition, with various user densities, ProSe offers better coverage range and access time a majority of the time. The evaluation in this paper provides insights to first responders on what to expect with either technology and how to improve the performance by adjusting different system parameters.
Highlights
Communication is vital for first responders in mission critical situations as it may be the difference between life and death
The question that still remains is as follows: How does Proximity Services (ProSe) compare to WiFi with respect to public safety needs when it comes to providing a reliable link for voice communication without the network infrastructure? To address this issue, we study the impact that each technology has on various important performance metrics
Mission Critical Pushto-Talk (MCPTT) access time is selected as the first performance metric to compare ProSe with Wi-Fi
Summary
Communication is vital for first responders in mission critical situations as it may be the difference between life and death. Regardless, the Mission Critical Voice (MCV) service should be resilient and available and provide its required function when necessary, even in rural or remote areas In such a situation, first responders may use Device-to-Device (D2D) communication to stay connected. While investigating the performance of mesh networks to be used for public safety, [9] highlights the shortcomings of Wi-Fi. the paper suggests the need and the prominent issues, such as capacity and interference, for deploying wireless networks in small towns and rural areas, the study itself is very limited since it only considers the throughput of unknown sources. The question that still remains is as follows: How does ProSe compare to WiFi with respect to public safety needs when it comes to providing a reliable link for voice communication without the network infrastructure? We will provide insights and conclusions to the analyses that were performed
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