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                            Library & Multimedia
 A model based design framework for interoperable communication systems
NCJ Number
              305974

Author(s)
          Gyu Hyun Kwon
Date Published

August 2010
Length
              199 pages
Annotation
              The purpose of this study is to develop an in-depth understanding of interoperability and construct a new model based on this understanding, along with a working model of an interoperable communication system to serve as a design framework that (1) supports effective public safety communication and (2) incorporates cognitive radio capabilities to ensure optimal semantic interoperability.
Abstract
              The need for interoperability in emergency communication systems has hastened the development of cognitive radio technology. However, even though a cognitive radio system technically interconnects participating agencies, interoperability depends not only on technical matters, but also organizational issues related to the different individuals, working contexts and types of cooperative work involved. To support public safety workers such as police, firefighters, and Emergency Medical Service (EMS) providers appropriately, it is vital to consider the dynamics of the way they interact in any collaborative situation. a series of studies was conducted. The first was a qualitative exploratory study that identified how the concept of interoperability is manifested in the public safety work domain. Using semi-structured interviews, communication patterns in terms of interoperability were placed in a real-world context. The responses from the participants were categorized in terms of the dimensions of interoperability and reinterpreted using sensemaking as a theoretical framework. The dimensions of interoperability identified consisted of information sharedness, communication readiness, operational awareness, adaptiveness, and coupledness. Based on these findings, a new instrument was proposed to measure interoperability for communication systems. This instrument was then statistically validated. The second study identified the effects of different types of operation and types of organization on interoperability, as well as investigating the relationships among interoperability, task routineness and information processing using Structural Equation Modeling (SEM). Based on this understanding and theoretical perspective, a new interoperable communication structure was delineated in the model. A prototype of a public safety cognitive radio communication system was then developed based on the proposed framework and examined using a focus group to validate the proposed model and design framework and highlight any usability issues that may affect the prototype's operational effectiveness. (Published abstract provided)
      
  
          Additional Details
Grant Number(s)
        2009-SQ-B9-K011


  
  
        
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        NIJ-Sponsored


  
  
        
  Award
        A Public Safety Cognitive Radio for Universal Interoperability: Transition to DSP Implementation for Manufacture
    
  
  
Date Published: August 1, 2010
    
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