• Title/Summary/Keyword: Technical protocol

Search Result 235, Processing Time 0.022 seconds

Investigation of CDMA Air Interface and Protocols

  • Kim, Sun-Young;Song, Pyeong-Jung;Kim, Jin-Up;Lee, Hyuck-Jae
    • ETRI Journal
    • /
    • v.19 no.3
    • /
    • pp.303-315
    • /
    • 1997
  • This appendix deals with the Korean air interface standard, TTA-62, for CDMA Mobile Systems, (CMS) [1]-[2]. The standard has been set up by Telecommunications Technology Association (TTA) which is a standardization organization in Korea [3]. This standard is an important specification that should be determined prior to the development of a digital cellular system. The CMS has been developed on the basis of this standard and the papers published in this special issue are the results of the CMS development. This appendix also describes the technical commonality of these papers. It covers the outline of the air interface and protocol specifications. The outline includes its major characteristics, radio protocol architecture, functionalties, and call processing. A comparison is also given between TTA-62 and IS-95[4], a North American digital cellular standard.

  • PDF

Signaling and Control Procedures Using Generalized MPLS Protocol for IP over an Optical Network

  • Um, Tai-Won;Choi, Jun-Kyun;Kim, Young-Ae;Lee, Hyeong-Ho;Jung, Hae-Won;Jong, Sang-Gug
    • ETRI Journal
    • /
    • v.24 no.2
    • /
    • pp.69-81
    • /
    • 2002
  • This paper reviews the existing research activities on signaling and control procedures for IP over optical networks. We focus on the IP-centric signaling and control architecture based on the generalized multi-protocol label switching (GMPLS) protocol and analyze various scenarios and technical issues for deploying the IP over an optical network. We analyze the signaling and operations and administration and maintenance requirements for integrating an IP network and an optical network in order to cope with the high bandwidth and poor resource granularity of the optical network, including the optical cross-connect system. On the basis of network architecture and a reference configuration model, we investigate the GMPLS-based control architecture and interconnection model appropriate for controlling IP bandwidth and optical lambda resources. The signaling and control procedure based on GMPLS on optical user-network interface and network-network interface are comparatively investigated to provide the optical lightpath. We also study protection and restoration procedures to protect link failure when it applies to generalized MPLS signaling.

  • PDF

Resource Adaptive QoS Management for Q-MOTP in MPLS Network (MPLS망에서 Q-MOTP를 위한 자원 적응적 QoS 관리)

  • Choi, Won-Keun
    • Journal of the Institute of Electronics and Information Engineers
    • /
    • v.51 no.12
    • /
    • pp.204-209
    • /
    • 2014
  • This paper has described a QoS mechanism and management for multimedia object transport protocol. Resource manager reports the system resource information to the QoS manager. Based on the combination of two informations, the more effective QoS management can be achieved by organic combination between them on the protocol time domain. Therefore, it is possible for QoS manager to decide call admission control quickly and detect and react the performance fluctuations in protocol time domain.

New protocol for simplified reduction and fixation of subcondylar fractures of the mandible: a technical note

  • Kamat, Saurabh Mohandas;Dhupar, Vikas;Akkara, Francis
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.47 no.5
    • /
    • pp.403-406
    • /
    • 2021
  • The dilemma regarding the management of condylar fractures generally revolves around the surgical approach, implant design, and the surgeon's experience. Zide and Kent's guidelines streamlined the decision making process for condylar fractures. However, there exists no standardized protocol for reduction and fixation of condylar fractures. Here, we have described a detailed and stepwise protocol, common to any surgical approach, that would lead to predictable, reproducible, and repeatable results in every surgeon's hands.

ebXML Transport, Routing & Packaging Specification

  • 박찬규
    • Proceedings of the CALSEC Conference
    • /
    • 2001.02a
    • /
    • pp.427-444
    • /
    • 2001
  • ㆍ ebXML Message Services Requirements Specification - Working Draft 26-May-2000, v0.96 · ebXML Message Services Specification - Working Draft 13-Sep-2000, v0.21 ㆍ ebXML Collaboration Protocol Profile and Agreement Specification - Working Draft 24-Jan-2001, v0.29 · ebXML Technical Architecture Security Specification - Working Draft 5-Feb-2001, vl.02(Under development) ㆍ ebXML Message Service Interface Specification - Under development.(omitted)

  • PDF

Pre-immigration Screening for Tuberculosis in South Korea: A Comparison of Smear- and Culture-Based Protocols

  • Lee, Sangyoon;Ryu, Ji Young;Kim, Dae-Hwan
    • Tuberculosis and Respiratory Diseases
    • /
    • v.82 no.2
    • /
    • pp.151-157
    • /
    • 2019
  • Background: Tuberculosis (TB) is the most important disease screened for upon patient history review during preimmigration medical examinations as performed in South Korea in prospective immigrants to certain Western countries. In 2007, the U.S. Centers for Disease Control and Prevention (CDC) changed the TB screening protocol from a smear-based test to the complete Culture and Directly Observed Therapy Tuberculosis Technical Instructions (CDOT TB TI) for reducing the incidence of TB in foreign-born immigrants. Methods: This study evaluated the effect of the revised (as compared with the old) protocol in South Korea. Results: Of the 40,558 visa applicants, 365 exhibited chest radiographic results suggestive of active or inactive TB, and 351 underwent sputum tests (acid-fast bacilli smear and Mycobacterium tuberculosis culture). To this end, using the CDOT TB TI, 36 subjects (88.8 per $10^5$ of the population) were found to have TB, compared with only seven using the older U.S. CDC technical instruction (TI) (p<0.001). In addition, there were six drug-resistant cases which were identified (16.7 per $10^5$ of the population), two of whom had multidrug-resistance (5.6 per $10^5$ of the population). Conclusion: The culture-based 2007 TI identified a great deal of TB cases current to the individuals tested, as compared to older U.S. CDC TI.

Effect of OPRC-HNS Protocol on Industry (OPRC-HNS 의정서 가입이 국내 산업계에 미치는 영향)

  • Lee, B.G.;Park, H.S.;Choi, J.W.;Cho, D.O.;Choi, D.H.;Lee, S.H.
    • Proceedings of KOSOMES biannual meeting
    • /
    • 2007.05a
    • /
    • pp.1-7
    • /
    • 2007
  • OPRC-HNS Protocol places the responsibility for having on-board a pollution incident emergency plan, notifying other States the incident facts in case of being affected by that incident, development of national contingency plan, international co-operation in pollution response, research and development, technical co-operation, promotion of bilateral and multilateral co-operation in preparedness and response, providing of information service, promotion of education and training, providing of technical services and technical assistance, etc. on parties to pursue their goals. After joining OPRC-HNS protocol, the government is required to inspect current status of matters related to HNS for its relevance on any laws. Additional items including establishment of component organization playing a role of managing response institution, manpower and resources, purchase response resource, development of response technique, and those also to enforce education and training to promote the party's duty. The facts described above drive up to analyze the benefits and burdens of relevant industry which appears in those procedure.

  • PDF

Design of Effective Architecture for Massive Push Transmission (대용량 푸시 전송을 위한 효율적인 아키텍처 설계)

  • Kim, Wook;Kang, Mi-Ae;Lee, Sang-Hoon
    • Proceedings of the Korean Society of Computer Information Conference
    • /
    • 2014.07a
    • /
    • pp.105-106
    • /
    • 2014
  • 본 논문에서는 대용량 푸시 전송을 위한 효율적인 아키텍처를 제안한다. MINA 프레임워크 상에서 XMPP 프로토콜을 이용한 푸시 전송은 세션이 연결된 환경에서 실시간 메시지를 전달하는 기술로 최근 푸시 전송 서버에서 많이 활용되고 있다. 하지만 웹 어플리케이션에서 전송함에 있어 WAS위에 푸시 모듈이 위치함으로 서버의 메모리 사용량이 오버로드 되는 부담을 안고 있다. 따라서 본 논문에서 제안하는 아키텍처는 서버를 이중화 하여 WAS와 MINA를 분리시켜 하나의 서버가 감당해야 하는 메모리 사용량을 감소 시키도록 하며 멀티큐와 프록시를 사용하여 대량의 푸시 전송시의 메시지 큐의 병목형상을 해결하고자 한다.

  • PDF

Trustworthy Mutual Attestation Protocol for Local True Single Sign-On System: Proof of Concept and Performance Evaluation

  • Khattak, Zubair Ahmad;Manan, Jamalul-Lail Ab;Sulaiman, Suziah
    • KSII Transactions on Internet and Information Systems (TIIS)
    • /
    • v.6 no.9
    • /
    • pp.2405-2423
    • /
    • 2012
  • In a traditional Single Sign-On (SSO) scheme, the user and the Service Providers (SPs) have given their trust to the Identity Provider (IdP) or Authentication Service Provider (ASP) for the authentication and correct assertion. However, we still need a better solution for the local/native true SSO to gain user confidence, whereby the trusted entity must play the role of the ASP between distinct SPs. This technical gap has been filled by Trusted Computing (TC), where the remote attestation approach introduced by the Trusted Computing Group (TCG) is to attest whether the remote platform integrity is indeed trusted or not. In this paper, we demonstrate a Trustworthy Mutual Attestation (TMutualA) protocol as a proof of concept implementation for a local true SSO using the Integrity Measurement Architecture (IMA) with the Trusted Platform Module (TPM). In our proposed protocol, firstly, the user and SP platform integrity are checked (i.e., hardware and software integrity state verification) before allowing access to a protected resource sited at the SP and releasing a user authentication token to the SP. We evaluated the performance of the proposed TMutualA protocol, in particular, the client and server attestation time and the round trip of the mutual attestation time.

Sparse DTMNs routihg protocol for the M2M environment (Sparse M2M 환경을 위한 DTMNs 라우팅 프로토콜)

  • Wang, Jong Soo;Seo, Doo Ok
    • Journal of Korea Society of Digital Industry and Information Management
    • /
    • v.10 no.4
    • /
    • pp.11-18
    • /
    • 2014
  • Recently, ICT technology has been evolving towards an M2M (Machine to Machine) environment that allows communication between machine and machine from the communication between person and person, and now the IoT (Internet of Things) technology that connects all things without human intervention is receiving great attention. In such a network environment, the communication network between object and object as well as between person and person, and person and object is available which leads to the sharing of information between all objects, which is the essential technical element for us to move forward to the information service society of the era of future ubiquitous computing. On this paper, the protocol related to DTMNs in a Sparse M2M environment was applied and the improved routing protocol was applied by using the azimuth and density of the moving node in order to support a more efficient network environment to deliver the message between nodes in an M2M environment. This paper intends to verify the continuity of the study related to efficient routing protocols to provide an efficient network environment in the IoT and IoE (Internet of Everything) environment which is as of recently in the spotlight.