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Designing SCA-Based Component Framework for Dynamic Deployment of SDR Components  

김세화 (서울대학교 전기컴퓨터공학부)
홍성수 (서울대학교 전기컴퓨터공학부)
장래혁 (서울대학교 전기컴퓨터공학부)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.9, no.3, 2003 , pp. 241-253 More about this Journal
Abstract
SCA (Software Communication Architecture), which has been adopted as a SDR(Software Defined Radio) Forum standard, provides a framework that successfully exploits common design patterns of embedded systems software. However, the SCA is inadequate as a component framework since it does not explicitly specify (1) a component model that defines how to express a component interface and how to implement it, (2) a package model that defines what and how to package in deployment units, and (3) a deployment model that defines the deployment environment and deployment process. In this paper, we propose a SCA-based component framework for SDR. Specifically, we present (1) a component model that defines a component as a specialized CORBA object that implements object management functionality, (2) a package model exploiting the existing XML descriptors of the SCA, and (3) a deployment model that defines a SCA-based deployment environment, a boot-up process that restores the deployment state, and a deployment process that supports lazy application instantiation and dynamic component replacement.
Keywords
Component-Based Development; Software Framework; Embedded Systems; Software Defined Radio(SDR); Distributed Object Computing;
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