Article
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Preserved in Portico This version is not peer-reviewed
Underlay Loosely Coupled Model for Public Safety Networks based on D2D
Version 1
: Received: 30 November 2023 / Approved: 1 December 2023 / Online: 1 December 2023 (13:32:14 CET)
A peer-reviewed article of this Preprint also exists.
Elleuch, W. Underlay Loosely Coupled Model for Public Safety Networks Based on Device-to-Device Communication. Telecom 2024, 5, 122-144. Elleuch, W. Underlay Loosely Coupled Model for Public Safety Networks Based on Device-to-Device Communication. Telecom 2024, 5, 122-144.
Abstract
In several emergency situations, during natural or human-caused disasters, frontline responders need to be able to communicate and collaborate to properly carry out the relief mission. Some countries are building their national Public Safety Mobile Broadband based on cellular LTE technology to provide fast, safe, and secure emergency services. Otherwise, in several emergency situations, the cellular antennas can be overloaded or partially damaged in manner to affect the group communication services. Since few last years, direct device-to-device (D2D) communications have been proposed by 3GPP as an underlay to Long Term Evolution (LTE) networks based on proximity, reuse, and hop gains. This paper focuses on the loosely coupled model based on D2D direct communication for Public Safety context. Many scenarios related to user membership and network management are detailed. Both “less cost” and “optimized tree” approaches are proposed, implemented, and their performance evaluated in terms of network updates number and resulting average Channel Quality Indicator (CQI). Other optimization approaches with different CQI threshold and optimization interval values have been implemented, simulated and their performance are compared with the “optimized tree”.
Keywords
Public Safety Network; D2D; Proximity Service; underlay networks; loosely coupled 22 model; network simulation
Subject
Computer Science and Mathematics, Computer Networks and Communications
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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