• 제목/요약/키워드: BcN 망

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The core information protection mechanism in the BcN(Broadband Convergence Network) (BcN(Broadband Convergence Network) 환경에서의 중요정보에 대한 도청방지 메카니즘)

  • Oh, Sek-Hoan;Lee, Jae-Yong;Kim, Byung-Chul
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.45 no.1
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    • pp.14-26
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    • 2008
  • IP over Ethernet technology widely used as Internet access uses the ARP(Address Resolution Protocol) that translates an ip address to the corresponding MAC address. recently, there are ARP security attacks that intentionally modify the IP address and its corresponding MAC address, utilizing various tools like "snoopspy". Since ARP attacks can redirect packets to different MAC address other than destination, attackers can eavesdrop packets, change their contents, or hijack the connection. Because the ARP attack is performed at data link layer, it can not be protected by security mechanisms such as Secure Shell(SSH) or Secure Sockets Layer(SSL). Thus, in this paper, we classify the ARP attack into downstream ARP spoofing attack and upstream ARP redirection attack, and propose a new security mechanism using DHCP information for acquisition of IP address. We propose a "DHCP snoop mechanism" or "DHCP sniffing/inspection mechanism" for ARP spoofing attack, and a "static binding mechanism" for ARP redirection attack. The proposed security mechanisms for ARP attacks can be widely used to reinforce the security of the next generation internet access networks including BcN.

The Interoperability Issue in Broadband Convergence network Implementation (광대역통합망 구축에서 상호운용성 이슈)

  • Lee, Jae-Jeong;Ryu, Han-Yang;Nam, Ki-Dong;Kim, Chang-Bong
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.48 no.2
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    • pp.57-64
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    • 2011
  • The NGN (Next Generation Network) means the kernel infrastructure technology to provide information and communication services which are able to be used at present and future when a ubiquitous computing era has been realized. In other words, NGN can be the frame providing the same information and communication services anytime and anywhere regardless of wire and wireless. The broadband convergence network that has been built in the public institution has established a broadband multimedia communication network supporting voice telephone, task net, internet network, video conference network, voice over IP (VoIP) network and etc. It is possible for a requested bandwidth and services to be served, only if a broadband convergence network provide the interoperability between the various classes which include a transport network layer, network control layer, service control layer and other layers. In this paper, we analyzed the interoperability issues of the present broadband convergence network and propose a guideline for the future one.

A study of interconnection cost settlement for Broadband network (광대역통신망의 상호 정산 기법 연구)

  • Jeong Byung-ho;Yim Hwa-young
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.5B
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    • pp.324-329
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    • 2005
  • In the traditional telephone services, the settlement method for usage of facilities has been systematically and reasonably arranged based on the cost. Through the advanced technology, the telecommunication services such as the convergence of voice-data, wire-wireless, communication-broadcasting, etc are offering. So, new settlement method in the broadband convergence network (BCN) should be necessary. This paper suggests inter-companies settlement method in the broadband network using interconnection bandwidth and transmission distance factor. By reflecting the facility cost weight on each BCN level, the cost settlement for various services can be easily done. As the settlement model for BCN, the inter-companies interconnection and settlement can be normalized by interconnection bandwidth and transmission distance factors.

A Study on Success Model of Broadband convergence Network for rural area (농어촌 광대역 가입자망 서비스의 성공모형에 관한 연구)

  • Shin, Sun-young;Suh, Chang-Kyo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.17 no.1
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    • pp.41-51
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    • 2017
  • Recently, Broadband Internet service in the rural area is deployed actively so it will be needed to identify the factors influencing success for continuous spread. In this paper, we explain the users'satisfaction of BcN for rural area and verify success factors such as obstacles the digital divide through the empirical analysis. We select basic variables from Information System (IS) Success Model and add specific variables from former research about overcoming digital divide. The results show that system quality has a significant influence on satisfaction. Use and satisfaction have an impact on eliminating the digital divide in rural area. Based on the findings, academic and practical implications for establishing Broadband Service in rural area are also discussed.

A Study on the Aspects and Counter Systems of the Cyber Terrorism in the Era of Changing Information Circumstances (정보환경변화시대의 사이버테러 양상 및 대응체계에 관한 연구)

  • Cho, Kwang-Rae
    • Korean Security Journal
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    • no.9
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    • pp.237-260
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    • 2005
  • Development of IT technology as well as arrival of information-oriented society raise the curtain of 'the era of Ubiquitous Computing', implying accessing computers beyond boundary of time and space. In this era, it is expected that IT paradigms and life-styles would be transformed immensely above the experiences of 20th century. However, improvement of technology summons a new risk of cyber terrorism which have not been in the past. Thus, it is urgent to prepare for the threats in the national level. This paper point out five major threats relating to 'the security in the era of Ubiquitous Computing'. : First, spread of threats in connection with BcN establishment, second, vulnerable information-security for wireless communication, third, leakage of private information, fourth, cyber terror and deterioration of security, fifth, security problems of Korea including the drain of military information and solutions in the views of organization, personnel, technology and budget, comparing with other countries.

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A Scalable Video Coding(SVC) and Balanced Selection Algorithm based P2P Streaming Technique for Efficient Military Video Information Transmission (효율적인 국방 영상정보 전송을 위한 확장비디오코딩(SVC) 및 균형선택 알고리즘 기반의 피투피(P2P) 비디오 스트리밍 기법 연구)

  • Shin, Kyuyong;Kim, Kyoung Min;Lee, Jongkwan
    • Convergence Security Journal
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    • v.19 no.4
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    • pp.87-96
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    • 2019
  • Recently, with the rapid development of video equipment and technology, tremendous video information is produced and utilized in military domain to acquire battlefield information or for effective command control. Note that the video playback devices currently used in the military domain ranges from low-performance tactical multi-functional terminals (TMFT) to high-performance video servers and the networks where the video information is transmitted also range from the low speed tactical information and communication network (TICN) to ultra-high speed defense broadband converged networks such as M-BcN. Therefore, there is a need for an efficient streaming technique that can efficiently transmit defense video information in heterogeneous communication equipment and network environments. To solve the problem, this paper proposes a Scalable Video Coding (SVC) and balanced selection algorithm based Peer-to-Peer (P2P) streaming technique and the feasibility of the proposed technique is verified by simulations. The simulation results based on our BitTorrent simulator show that the proposed balanced selection scheme outperforms the sequential or rarest selection algorithm.

QoS guaranteed IP multicast admission control mechanism (품질 보장형 IP 멀티캐스트 수락 제어 메커니즘)

  • Song, kang-ho;Rhee, wooo-Seop
    • Proceedings of the Korea Contents Association Conference
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    • 2008.05a
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    • pp.51-55
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    • 2008
  • Request High-Images, High-quality, duplex transmission, BcN Voice telephone, Broadcast, Data internet service came to be all possible and demolished original communication service area. Also, The quality is guaranteed stablely to new business and ISP the requirement comes to become a multicasting quality guarantee mechanism which there is the reliability for a information communication and High-quality multimedia service. Like this, a multicast mechanism to be guaranteed must become air control End-to-End QoS for a service supply, a transmission delay a packet loss or requirement which the user requests guarantee and multicast Path-NET which there is the reliability must be provided. Therefor, we proposed IP base multicast new join the present the multicast mechanism of Probing packet foundation which there is the efficiently a linking acceptance, we used ns-2 simulator for the performance evaluation of the proposed.

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강유전체의 Tunable RF회로 및 시스템 응용

  • Kim Jeong-Pil
    • The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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    • v.16 no.4 s.56
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    • pp.76-83
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    • 2005
  • 다양한 무선서비스를 기반으로 한 광대역 통합망(BcN: Broadband convergence Network) 네트워크 사회로의 진화와 더불어 승가하고 있는 Cognitive Ra-dio 기술에 요구는 모바일 컨버전스(융합) 단말기 (Mobile Convergence Terminal) 개발을 필수적으로 요구하고 있고, 이를 위한 핵심 기술은 Tunable RE 회로 설계 기술이다. 이를 위해서는 고성능, 저가격의 Tunable 소자들의 개발이 급선무이다. 반도체 Varactor와 MEMS 스위치를 이용하는 기술이 보편화내지는 준성숙 단계로 접어들고 있는 상황이지만 강유전체(Ferroelectric)에는 기존 반도체 Varactor와 MEMS 스위치로 얻을 수 없는 특성들을 얻을 수 있다고 알려지면서 이에 대한 관심과 연구가 증대되고 있다. 본 논문에서는 강유전체의 개요와 특성, 연구 경향, Tunable 소자 및 회로, 더 나아가 시스템 응용에 대하여 살펴보고, 앞으로 해결해야 할 문제점들에 대하여 언급하고자 한다.

A Tabu Search Heuristic Algorithm for Hierarchical Location Allocation Problem (광대역 융합 가입자 망 설계를 위한 타부서치 알고리즘 개발)

  • Park, Gi-Gyeong;Lee, Yeong-Ho;Kim, Yeong-Uk
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2008.10a
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    • pp.131-135
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    • 2008
  • In this paper, we deal with a hierarchical location-allocation problem in designing the broadband convergence networks (BcN). The objective is to minimize the total cost of switch and cable while satisfying the quality of service (QoS). We formulate the problem as an integer programming model and develop the Tabu Search (TS) heuristic algorithm to find a good feasible solution within a reasonable time limit. Initial solution is obtained by using the tree structure. Three neighborhood generation mechanisms are used by local search heuristic: insertion, switch up, and switch down. In order to demonstrate the effectiveness of the proposed algorithm, we generate lower bounds from nonlinear QoS relaxation problem. We present promising computational results of the proposed solution procedures.

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A Study of Data Security System Based PKI on Wireless Internet Environment (무선 인터넷 환경에서의 PKI 기반 데이터 보호 시스템에 대한 연구)

  • Kim, Young-Ho;Chae, Cheol-Joo;Choi, Sang-Wook;Lee, Jae-Kwang
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2008.05a
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    • pp.233-236
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    • 2008
  • Wire wireless integrated service of BcN(Broadband convergence Network) is expanding. Information Security issue is highlighted for opposing attack of getting information illegally on wire wireless network. The user of PKI(Public Key Infrastructure) cipher system among Information security technology receives various security services about authentication, confidentiality, integrity, non-repudiation and access control etc. A mobile client and server are loaded certificate and wireless internet cryptography module for trusted data send receive. And data sends receives to each other after certification process through validity check of certificate. Certificate and data security system is researched through PKI on wireless network environment and data security system in this paper.

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