The Experts below are selected from a list of 261 Experts worldwide ranked by ideXlab platform

Zhang Ji - One of the best experts on this subject based on the ideXlab platform.

  • Waveform Development Based on SCA
    Computer Engineering, 2006
    Co-Authors: Zhang Ji
    Abstract:

    This paper introduces how to develop waveform based on Software Communication Architecture (SCA) and summaries waveform developing process and API designing principle. Based on engineering practice experience, a whole designing and developing process of demo waveform is shown, including waveform function analysis, module division, API definition and component design. It provides a reference for waveform development based on SCA.

Yin Zhenyu - One of the best experts on this subject based on the ideXlab platform.

  • SCA-compliant Waveform Implementation and Its Research
    Computer Engineering, 2006
    Co-Authors: Yin Zhenyu
    Abstract:

    This paper studies on Software Communication Architecture,an open system Architecture used for SDR.It realizes an application-specific FM3TR waveform based on the open environment of SCA3.0.From the point of real-time performance of SDR and Software implementation,tests are made on FM3TR waveform under the environment of data and voice Communication.As a result,the SCA-compliant SDR has favorable interoperability and Software portability and can meet the real-time performance requirements such as voice Communication.

George Papadopoulos - One of the best experts on this subject based on the ideXlab platform.

  • Extending OSI protocols to support medical imaging services
    Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 1992
    Co-Authors: George Orphanos, Dimitris Kanellopoulos, Stavros Koubias, Vangelis Kopsahilis, George Papadopoulos
    Abstract:

    The recent advance in the deign of computer-based medical systems offer to a patient the feasibility to be independent on the knowledge of a local doctor. Computer terminals in hospitals are now available to acces and manage one patient's data in order to assure appropriate medication. This paper describes a Software Communication Architecture for medical imaging service. The proposed Architecture comprise of a Communication protocol and an Application Program Interface (API). The implemented protocol was designed in agreement with the full OSI stack of higher layers' protocols already standardized. Based on this notion, an OSI-like interface was developed able to provide Telemedicine Network Services (TNS) to Telemedicine users and facilitate the writing of medical applications. The main aspeb of the interface are provision of a set of services similar to that defined in the standards by CCITT and ISO known as Association Control Service Element (ACSE) and Remote Operation Service Element (ROSE), usage of TCP/IP Communication platform or any other transport protocol, reliability in medical data transmission as a particular implemented Telemedicine File Transfer (TFT) supporb the image-file features. The interface between medical applications and TCP/IP connection-oriented platform is referred to as the TNS interface and can be considered to lie in the application, presentation and session layers. The Software components of the TNS interface were built on the OS/2 operating system which runs on the medical workstations. In the prototype system around 1 Mbit/s throughput was obtained for an image-file transfer implementing a client-server interaction, on an Ethernet 802.3 LAN.

Jin-up Kim - One of the best experts on this subject based on the ideXlab platform.

  • A vertical handover based on Software Communications Architectures
    IEEE 60th Vehicular Technology Conference 2004. VTC2004-Fall. 2004, 1
    Co-Authors: Chan-yong Lee, Yeon-seung Shin, Jin-up Kim
    Abstract:

    We suggest a new Software component, DomainBroker, on the Software Communication Architecture (SCA) of the Software Defined Radio (SDR) Forum for supporting a vertical (intersystem or interdomain) handover between different systems. The recent Software components in the SCA core framework (CF) are incongruent for supporting vertical handover because there is the DomainManager Software component in the highest component concept. Thus, a supervisor component is needed to manage a number of DomainManager components for vertical handover. It is possible to maintain interoperability and independence between different domains by means of our DomainBroker component. We also designed extensible markup language (XML) document type definition (DTD) relationships of domain profile with DomainBroker, and the CF interface definition language (IDL) relationships between DomainBroker and other Software components, such as DomainManager, DeviceManager, FileManager, etc.

  • SCA-based multi-LAN application development
    IEEE 60th Vehicular Technology Conference 2004. VTC2004-Fall. 2004, 1
    Co-Authors: Eunseon Cho, Yeon-seung Shin, Chang-ki Kim, Jin-up Kim
    Abstract:

    The paper introduces a service and system developed on the basis of the Software Communication Architecture (SCA) that is a standard framework for component Software technology. The focus of the study is designing a new SCA-based multi-LAN application system that adopts the same component-based Software Architecture for Software defined radio (SDR). The multi-LAN services provide LAN selection services between Ethernet and wireless LAN connection services with perfect freedom for the user. The assembly and deployment of the components for different LAN services is controlled by the core framework (CF) in the SCA. We propose a competent scheme for the design of components for SCA-based multi-LAN services. It is divided into two parts, an overall deployment Architecture design, including functional component division, and an application program interface (API) for each component generated from the generic building blocks for Communication between the components.

Brian Hobson - One of the best experts on this subject based on the ideXlab platform.

  • Design and rapid prototyping of SCA-compliant public safety P25 waveform and P25–FM3TR–VoIP bridge
    Analog Integrated Circuits and Signal Processing, 2011
    Co-Authors: Per Johansson, Williams Hodgkiss, Wenhua Zhao, Anthony Nwokafor, Jeffrey Cuenco, Brian Hobson
    Abstract:

    Establishing radio Communication between military commanders, soldiers and law enforcement officers is an important enabling capability to facilitate interoperability. The Joint Tactical Radio System (JTRS) program is enabling Communications within the military by implementing different military radio waveforms on Software defined radio (SDR) platforms. It is logical to include a Project 25 (P25) public safety waveform in the JTRS waveform portfolio. This paper describes the rapid development of a P25 waveform on a surrogate JTRS SDR platform. The development process and methodology, which starts from a platform agnostic executable waveform model in Matlab, through an intermediate implementation using open tools on generic platforms, to the final platform-specific implementation, is introduced and discussed. This paper shows that adopting this methodology can speed up waveform development and porting. Furthermore, this paper presents the design and implementation of a three way voice bridge among P25, the future multiband multiwaveform modular tactical radio (FM3TR), and voice over Internet Protocol (VoIP), with Software Communication Architecture (SCA) compliant implementation for both the P25 and FM3TR waveforms. This paper shows that critical issues such as interoperability can be tackled efficiently by leveraging SDR and SCA.

  • Design and rapid prototyping of SCA-compliant public safety P25 waveform and P25---FM3TR---VoIP bridge
    Analog Integrated Circuits and Signal Processing, 2011
    Co-Authors: Zhongren Cao, Per Johansson, Williams Hodgkiss, Wenhua Zhao, Anthony Nwokafor, Jeffrey Cuenco, Brian Hobson
    Abstract:

    Establishing radio Communication between military commanders, soldiers and law enforcement officers is an important enabling capability to facilitate interoperability. The Joint Tactical Radio System (JTRS) program is enabling Communications within the military by implementing different military radio waveforms on Software defined radio (SDR) platforms. It is logical to include a Project 25 (P25) public safety waveform in the JTRS waveform portfolio. This paper describes the rapid development of a P25 waveform on a surrogate JTRS SDR platform. The development process and methodology, which starts from a platform agnostic executable waveform model in Matlab, through an intermediate implementation using open tools on generic platforms, to the final platform-specific implementation, is introduced and discussed. This paper shows that adopting this methodology can speed up waveform development and porting. Furthermore, this paper presents the design and implementation of a three way voice bridge among P25, the future multiband multiwaveform modular tactical radio (FM3TR), and voice over Internet Protocol (VoIP), with Software Communication Architecture (SCA) compliant implementation for both the P25 and FM3TR waveforms. This paper shows that critical issues such as interoperability can be tackled efficiently by leveraging SDR and SCA.