Abstract
In the event of natural disaster or emergency Tactical Public Safety Communications Infrastructure (TPSCI) has a vital importance. In order to have uninterrupted seamless Communication between the emergency services it is required to have easy unified integration between different VHF, UHF & HF Wireless Radio Technologies. Authors in this research has proposed the use of Services Integration Unit (SIU) which is equipped with RoIP Module for continuous connectivity between different VHF, UHF & HF Wireless Radio Technologies. Here in this study Authors have proposed Two-Tier Architecture for uninterrupted Tactical Public Safety communication. In the First Tier Device to Device Communication (D2DC) will be preferred in the same wireless technology. In the Second Tier Services Integration Unit (SIU) will be used to extend Radio voice traffic by converting it to IP Traffic via Radio over IP (RoIP) module. The Radio voice traffic will be converted into IP Traffic and extended to the remote location through back haul Point to Point Microwave Radio (PTPMR). At the remote location Second Services Integration Unit (SIU) will be deployed which will receive the Radio IP traffic through backhaul Point to Point Microwave Radio (PTPMR) and will be reconverted in to Radio voice traffic through inbuilt Radio over IP (RoIP) module present in the remote Services Integration Unit (SIU). Further Authors will suggest that how the Two-Tier Architecture can be professionally deployed in the Public Safety Communications for uninterrupted seamless communication between emergency services in the event of natural disaster or emergency.