• Title/Summary/Keyword: Protocol Gateway

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Design and Implementation of VoIP access over ADSL for home services (댁내 서비스를 위한 ADSL-VoIP 게이트웨이 설계 및 구현)

  • 송영호;배장식;김성원;이원석
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.10e
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    • pp.637-639
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    • 2002
  • 현재 인터넷은 저렴한 사용료와 정보에 대한 욕구를 충족시키는 방대한 공개 자료를 바탕으로 그 규모를 더욱 확대하여 가고 있으며, 이러한 인터넷 사용자의 확대는 새로운 서비스에 대한 요구를 창출하게 되었다. 이러한 저렴하고 규모가 큰 인터넷을 이용하여 기존의 통신망을 대체하는 연구가 활발히 이루어지고 있으며, VoIP(Voice over Internet Protocol)가 인터넷의 대표적인 서비스로 등장하고 있다. VoIP 서비스에 대한 연구는 IETF와 ITU가 중심이 되어 이루어지고 있으며 IETF에서 제안한 MGCP, SIP 와 ITU에서 제안한 H.323 과 같은 프로토콜을 기반으로 VoIP 서비스를 위한 다각적인 접근과 연구가 진행중이다. 본 연구는 VoIP 서비스를 위한 여러 프로토콜 중 IETF가 주관하고 있는 MGCP(Media Gateway Control Protocol ) 스팩에 따라 MGCP를 이용한 ADSL-VoIP Gateway를 개발하여 보다 효율적인 망 자원 활용을 가능하게 하며, 향후 제공될 다양한 음성/동영상 서비스에 대한 기반을 마련하고자 한다.

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Security Method for Approval Process of Payment System (지불시스템의 승인단계에서 보안방안)

  • 임인채;위장현
    • Journal of Korea Society of Industrial Information Systems
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    • v.7 no.4
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    • pp.59-65
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    • 2002
  • Payment systems in EC need confidentiality, integrity, non-repudiation. All transactions between cardholders and merchants must be authorized by a payment gateway in SET protocol. RSA secret key operation which requires heavy computation takes the most part of the time for payment authorization. For the reason, a heavy traffic of payment authorization requests from merchants causes the payment gateway to execute excessive RSA secret key operations, which may cause the bottleneck of the whole system. To resolve this problem, One-Time Password technique is applied to payment authorization step of the SET protocol.

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Gateway System Implementation for heterogeneous Protocol relationship Data exchange (이기종 Protocol의 Data교환을 위한 Gateway System 구현)

  • Jung, Hyun-Sik;Kang, Dae-Wook
    • Proceedings of the Korea Information Processing Society Conference
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    • 2007.11a
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    • pp.391-394
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    • 2007
  • 상위(HOST)시스템은 TCP/IP 환경이 적용 되어야 하며, 하위(P/C)시스템은 BSC프로토콜을 그대로 사용가능 해야 한다. G/W시스템은 이 두가지 NETWORK환경을 모두 지원 해야 한다. LAN카드는 TCP/IP프로토콜을 지원할 것이며 BSC카드는 모뎀을 통해서 BSC 프로토콜을 지원할 것이다. 시스템은 산업용 PC보다 성능이 뛰어난 Unix시스템을 사용할것이다. G/W시스템의 역할은 각기 형태가 다른 전문을 재편성 하는 기능을 추가한다. 상위(HOST)시스템으로 부터 받는 지시 데이터의 SIZE를 하위(P/C)시스템에서 적용 가능한 수준으로 재조정 되어야 한다. 반대로 하위(P/C)시스템에서 송신되는 전문 형태를 상위(HOST)시스템에 맞게 재조정 되어야 한다.

Study on Smart Office Functionality Utilizing KEPCO Gateway (한전 Gateway를 활용한 Smart Office 기능 연구)

  • Nam, Kang-Hyun
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.11
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    • pp.1107-1112
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    • 2016
  • This study is the Smart Office features that take advantage of KEPCO eIoT(: energy Internet of Thing) platform, and it's Network configuration is composed of sensing device, gateway, platform, and the service server. The key features are parts for processing protocol data between the gateway and the device using LoRa(: Long Range) technology, Intelligent applications and public safety data connected to the PS-LTE(: Public Safety-Long-Term Evolution) system. And the resource tree provided Smart Office for the service, which commonly used in the application server and the device.

A Study on Distributed Gateway for The Bio-signal Management in U-Healthcare (유 헬스케어에서 생체신호관리를 위한 분산형 게이트웨이에 관한 연구)

  • Lee, Seok-Hee;Woo, Sung-Hee;Ryu, Geun-Taek
    • 전자공학회논문지 IE
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    • v.49 no.2
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    • pp.58-64
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    • 2012
  • In this paper, we proposed a distributed gateway for ubiquitous healthcare system. We also designed and implemented protocol conversion and processing algorithms to exchange a seamless information, the bio signals between the databases and the receiving devices from ZigBee to gateway and from the gateway to database and network. The distributed gateway system consists of the bio signal acquisition, ZigBee modules, distributed databases, and gateways. The bio signals detected by the ZigBee module are sent to the gateway. The distributed gateway analyzes the data being transferred, sends those to the receiving devices, and lets the authorized personnel access. The proposed system can be utilized in various fields including activity analysis for the elderly, security systems, home network service, and so on.

Development of Communication Module for a Mobile Integrated SNS Gateway (모바일 통합 SNS 게이트웨이 통신 모듈 개발)

  • Lee, Shinho;Kwon, Dongwoo;Kim, Hyeonwoo;Ju, Hongtaek
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.39B no.2
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    • pp.75-85
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    • 2014
  • Recently, mobile SNS traffic has increased tremendously due to the deployment of smart devices such as smart phones and smart tablets. In this paper, mobile integrated SNS gateway is proposed to cope with massive SNS traffic. Most of mobile SNS applications update the information with individual connection to the corresponding servers. The proposed gateway integrates these applications. It is for reducing SNS traffic caused by continuous data request and improving the mobile communication performance. The key elements of the mobile integrated SNS gateway are the synchronization, cache and integrated certification. The proposed protocol and gateway system have implemented on the testbed which deployed on the real network to evaluate the performance of the proposed gateway. Finally, we present the caching performance of gateway system implementation.

Design of IoT Gateway based Event-Driven Approach for IoT related Applications (IoT 게이트웨이 기반의 이벤트 중심 접근 방식 응용프로그램 설계)

  • Nkenyereye, Lionel;Jang, Jong-Wook
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.20 no.11
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    • pp.2119-2124
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    • 2016
  • The Internet of things (IoT) needs to be an event-driven approach for efficient related time response and processing. The growth of mobile devices in Internet of Things (IoT) leads to a number of intelligent buildings related IoT applications. For instance, home automation controlling system uses client system such web apps on smartphone or web service to access the home server by sending control commands. The gateway based RESTful technology responsible for handling clients'requests attests an internet latency in case a large number of clients' requests submit toward the gateway increases. In this paper, we propose the design tasks of the IoT gateway for handling concurrency events. The gateway based event-driven architecture is designed for building IoT gateway using node.js on one side and communication protocol based message-oriented middleware known as XMPP to handle communications of intelligent building control devices connected to the gateway through a centralized hub.

A Route Optimization Mechanism using an Extension Header in the IPv6 Multihoming Environment (IPv6 멀티호밍 환경에서 확장 헤더를 이용한 경로 최적화 메커니즘)

  • Huh, Ji-Young;Lee, Jae-Hwoon
    • Journal of KIISE:Information Networking
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    • v.34 no.1
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    • pp.33-40
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    • 2007
  • A multihomed enterprise or AS(Autonomous System) improves reliability and performance by acquiring its Internet connectivity from more than two ISP(Internet Service Provider). Multihoming protocol must allow a multihomed site whose connectivity through one of the ISPs fails to keep its Internet connectivity As one of mechanisms to do this, tunneling mechanism through Non-direct EBGP(Exterior Border Gateway Protocol) is defined. This mechanism makes connectivity to the Internet more reliable, but causes the problem that makes the communication route non-optimal. In this paper, we propose the route optimization mechanism using an extension header in the IPv6 multihoming environment.

Security System using Protocol-Based Security Module for Secure Data Transmission in Web Environment (웹 환경에서 안전한 데이타 전송을 보장하는 프로토콜 기반의 보안 모듈에 근거한 보안 시스템)

  • 장승주;임동훈
    • Journal of KIISE:Information Networking
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    • v.29 no.6
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    • pp.635-644
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    • 2002
  • We propose the PBSM(Protocol-Based Security Module) system which guarantees the secure data transmission under web environments. There are two modules in the PBSM architecture. One is Web Server Security Module(WSSM) which is working on a web server, the other is the Winsock Client Security Module(WSCSM) which is working on a client. The WSCSM security module decrypts the encrypted HTML document that is received from the security web server. The decrypted HTML document is displayed on the screen of a client. The WSSM module contains the encryption function for HTML file and the decryption function for CGI(Common Gateway Interface). The formal analysis methodology is imported from format theory for analyzing the data flow of the PBSM system. The formal analysis methodology is based on the order theory.

A VoIP Service Provisioning Architecture Based on MEGACO (MEGACO 기반 VoIP 서비스 제공 구조)

  • 박정환;정성호;이일진;강신각
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.11a
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    • pp.844-848
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    • 2002
  • In this paper, we present a VoIP service provisioning architecture based on MEGACO/H.248 which is one of the key protocols for VoIP services. MEGACO/H.248 is a media gateway control protocol standardized by both ITU-T and IETF, and many ITSPs, carriers, and vendors currently have a lot of interest in the protocol. MEGACO/H.248 is used by a softswitch a key component of the next generation VoIP network, in order to control various media gateways and provide seamless interworking between PSTN and Yon networks.

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