• Title/Summary/Keyword: application QoS

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Design of WQPOA Routing Algorithm for Next Generation Internet Services (차세대 인터넷을 위한 QoS 기반 라우팅 알고리즘)

  • Son, Seung-Won;O, Chang-Seok
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.11S
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    • pp.3229-3242
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    • 1999
  • At recent, the Internet is evolving into the directions which is capable of incorporating stream-type services such as voice and video services due to the remarkable growth of WWW service and the development of new multimedia application services. However, the existing Internet can only support a best-effort delivery model and thus it is difficult to satisfy these requirements as well as to provide the QoS beyond a certain degree. Accordingly, it is imperative to develop QoS-based routing algorithm in order to allow flexible routing by the Internet user's QoS demand and to be applied into wide area networks. In this paper, we presented new routing algorithms for next generation Internet services and made performance evaluations. The proposed algorithms allow the routing by the user's QoS demand level in order to provide the diverse Internet application services based on ATM network environment that is expected to play a role as an infrastructure of next Generation Internet Services.

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DiffServ QoS Support in DSL Broadband Access Networks (DSL 광대역 접속망에서 DiffServ QoS 지원 방안)

  • Park, Seung-Chul
    • The KIPS Transactions:PartC
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    • v.13C no.5 s.108
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    • pp.613-620
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    • 2006
  • From both techlical and economic viewpoints, DiffServ IP QoS architecture is accepted as a more practical solution because of the complexity Problem of the other IntServ architecture. In this paper, we propose several models to support DiffServ QoS in DSL broadband access networks and discuss about migration path from current best-effort DSL networks to DiffServ-enabled ones. Since DSL networks are recently and widely deployed in the world amount ot new investment, compatibility with existing QoS-unaware DSL systems, and compatibility with existing charging systems as well as effective support of various QoS services must be carefully considered when we design DiffServ QoS support models in DSL networks. The DiffServ models proposed in this paper are divided into static DiffServ models and dynamic DiffServ models which are near-term solutions and long-term solutions repecitively. The static DiffServ models include Flat DiffServ which suworts per-subscriber DiffServ QoS and Structured DiffServ which supports per-subscriber and per-service DiffServ QoS. And the dynamic DiffServ models include Direct DiffServ for P2P(Peer to Peer) applications and Indirect DiffServ for ASP(Application Service Provider) applications.

A QoS DAG-based QoS Routing Scheme for Mobile Ad-hoc Networks (무선 Ad-hoc 네트워크를 위한 QoS DAG 기반의 QoS 라우팅 기법)

  • Kang, Yong-Hyeog;Kim, Hyun-Ho;Kim, Jung-Hee;Eom, Young-Ik
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.10A
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    • pp.736-745
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    • 2009
  • The growth of mobile devices and the increase of using them have required the support of realtime multimedia application in wireless environments. Especially, wireless ad-hoc networks without central management system and with dynamically changing network topology need much researches of QoS routing for multimedia applications. However it is impossible to support the hard realtime QoS for these dynamic networks. In this paper, we propose a QoS routing scheme by using QoS DAG that is maintained by each mobile node and contains the QoS information for neighbor nodes. In order to maintain the QoS DAG, each node transmits its QoS information to neighbor nodes by local broadcasting, and the neighbor nodes update their QoS DAGs by the received message. In our proposed scheme, it is possible to search the QoS path efficiently by the QoS DAG without searching it in the whole network.

A Design and Implementation of MPLS Based Wireless Mesh Network (MPLS기반 메쉬 네트워크 설계 및 구현)

  • Kim, Young-Han;Kim, Jeong-Myun
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.10 no.2
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    • pp.103-111
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    • 2011
  • Recently, wireless mesh networks are used in various application areas. However, wireless mesh networks have limited bandwidth by the wireless transmission property, and have severe throughput degradation in multi-hop transmission in single channel wireless mesh networks. To solve this problem and support QoS, a lot of routing protocols have been proposed in mesh networks. In this paper, we propose a wireless mesh networks architecture with MPLS for QoS service. The path and traffic management from the application could be independent from QoS routing protocols by using the MPLS in wirelss mesh networks. In this paper, we design a MPLS-based mesh router with IEEE 802.11e for traffic differentiation and investigate the operation by implementation and test.

A Study of Virtual Private Network On based Environment IP Security Simulations Quality of Service Guarantee (IPSec 기반 환경하에서 QoS 보장 가상 사설망 구현 방안 연구)

  • Kim, Jeong-Hun;Yoe, Hyun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2001.10a
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    • pp.150-153
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    • 2001
  • Today Internet is only Best-Effort service. During the past few years, new types of internet applications which require performance beyond the best-effort service that is provided by the current internet have emerged. These applications required QoS(Quality of Services) guarantee and Security between end-to-end. In this paper simulations Differentiated Services that IETF(Internet Engineering Task Forte) has proposed one of QoS(Quality of Services) guarantee VPN(Virtual private Network) using QoS(Quality of Services) guarantee and IP Security between end-to-end.

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A study of solving random time delay of teleoperation with internet using QoS (QoS를 이용한 인터넷 원격제어의 임의 시간 지연 문제 해결 방법에 대한 연구)

  • 심현승;허경무;김장기
    • 제어로봇시스템학회:학술대회논문집
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    • 2000.10a
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    • pp.433-433
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    • 2000
  • In this paper, we propose a development of internet teleoperation method applying QoS model, which has the real time control capability and the time-delay predicting capability, The QoS model gives a constant bandwidth to a specified application and makes the dynamically irregular time-delay to be predictable and fined so that it can have real-time capability.

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Design of Interworking Control System between QoS Parameters and QoE Items to Control Multimedia Services Quality (멀티미디어 서비스 품질 제어를 위한 QoS 파라미터와 QoE 요소간의 연동 제어 시스템 설계)

  • Kim, Hyun-Jong;Yun, Dong-Geun;Choi, Seong-Gon
    • The Journal of the Korea Contents Association
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    • v.10 no.4
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    • pp.45-54
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    • 2010
  • In this paper, we propose a quality interworking control system to enhance user's quality satisfaction in NGN environment by controling QoS parameters related with QoE in network layer when service user's QoE using variance multimedia service is poor. The proposed system gathers QoS parameter information in network layer through control packet such as RTCP, and evaluates QoE of multimedia service using these QoS parameter information. Comparing the evaluated QoE with the measured QoE in application layer, QCS judges quality degradation, deduces related QoS parameters and decides relative importance of each parameter when QoE is lower than threshold value. QCS generates QoS control values which is based on routing and switching policy in service quality control system(SCS) and forwards them to SCS. Through this proposed system, service and network providers can provide multimedia services of enhanced quality to service users taking account of service characteristic and network performance.

Advanced QoS Provisioning Scheme using CDMA Traffic Measurement in All-IP Networks (All-IP 네트워크에서 CDMA트래픽 측정기술을 이용한 고급 QoS 제공 기법에 관한 연구)

  • Kim Seok-Hoon;Ryoo In-Tae
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.29 no.1B
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    • pp.125-132
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    • 2004
  • In this paper, we propose an advanced QoS provisioning scheme (AQPS) that can provide satisfied QoS for multimedia applicatios based on accurate traffic measurements. We first consider the 1xEV-DV system as a target system, extract QoS requirements or the system, and then develop a corresponding QoS provisioning method using CDMA traffic measurement. The AQPS has been verified to outperform the existing system used in the current 1xEV-DV network and to efficiently manage network resources by computer simulations.

Conceptual Design of Networking Node with Real-time Monitoring for QoS Coordination of Tactical-Mesh Traffic (전술메쉬 트래픽 QoS 조율을 위한 네트워킹 노드의 개념 설계 및 실시간 모니터링)

  • Shin, Jun-Sik;Kang, Moonjoong;Park, Juman;Kwon, Daehoon;Kim, JongWon
    • Smart Media Journal
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    • v.8 no.2
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    • pp.29-38
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    • 2019
  • With the advancement of information and communication technology, tactical networks are continuously being converted to All-IP future tactical networks that integrate all application services based on Internet protocol. Futuristic tactical mesh network is built with tactical WAN (wide area network) nodes that are inter-connected by a mesh structure. In order to guarantee QoS (quality of service) of application services, tactical service mesh (TSM) is suggested as an intermediate layer between infrastructure and application layers for futuristic tactical mesh network. The tactical service mesh requires dynamic QoS monitoring and control for intelligent QoS coordination. However, legacy networking nodes used for existing tactical networks are difficult to support these functionality due to inflexible monitoring support. In order to resolve such matter, we propose a tactical mesh WAN node as a hardware/software co-designed networking node in this paper. The tactical mesh WAN node is conceptually designed to have multi-access networking interfaces and virtualized networking switches by leveraging the DANOS whitebox server/switch. In addition, we explain how to apply eBPF-based traffic monitoring to the tactical mesh WAN node and verify the traffic monitoring feasibility for supporting QoS coordination of tactical-mesh traffic.

A Study on Reliability for Application QoS in Distributed Multimedia (분산 멀티미디어에서 응용 QoS를 위한 신뢰성에 관한 연구)

  • Ko, Eung-Nam;Bae, Cheol-Soo
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.8 no.1
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    • pp.18-22
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    • 2015
  • The relationship of information collection and utility is relationship of man to man, but is developed object to object by information communication and control system. This paper suggests a multimedia collaboration environment based on M2M(Machine to machine). We propose a study on reliability for application QoS in distributed multimedia. When it recovers, the characteristic of this system is to use the same method to get back again it as it creates a session.