Project54 – CATLab University of New Hampshire Ivan Elhart

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart Introduction Data communication Vehicle to Infrastructure (V2I) communication Problem Expensive APCO P25 equipment Approach Software Defined P25 Data Base Station Results and Tests

Introduction

Data communication

Vehicle to Infrastructure (V2I)

communication

Problem

Expensive APCO P25 equipment

Approach

Software Defined P25 Data Base Station

Results and Tests

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart M. Weiser, " The computer for the 21 st century " SIGMOBILE Mobile Computing and Communications Review , vol. 3, no. 3, pp. 3-11, 1999.

A. L. Kun, W. T. Miller, III, and W. H. Lenharth, " Computers in police cruisers ," Pervasive Computing, IEEE , vol. 3, no. 4, pp. 34-41, 2004. APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart APCO Project 25 APCO Project 25 Problem - The high cost of the equipment needed to support mixed voice and data transmissions over private land mobile radio channels

APCO Project 25

APCO Project 25

Problem - The high cost of the equipment needed to support mixed voice and data transmissions over private land mobile radio channels

To outline a system that will allow smaller law enforcement agencies to enable wireless data services in their cruisers in a cost effective way and with a high level of reliability APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

To outline a system that will allow smaller law enforcement agencies to enable wireless data services in their cruisers in a cost effective way and with a high level of reliability

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart A local NH police department

A local NH police department

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart Voice communication line Radio Channel

Voice communication line APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart Radio Channel - TDMA voice data voice voice voice data A single data line

A single client Multiple clients Voice priority APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

A single client

Multiple clients

Voice priority

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart A single client

A single client

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart A single client Multiple clients data data data data Channel Usage Collisions 35% 1.61% 4% 0.015%

A single client

Multiple clients

A single client Multiple clients Voice priority APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

A single client

Multiple clients

Voice priority

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart

APCO P25 Wireless Data Services for Smaller Public Safety Agencies – Ivan Elhart Project54 – CATLab University of New Hampshire