• Title/Summary/Keyword: resource reservation protocol

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Resource Reservation Protocol (대역예약 프로토콜(RSVP) 기술)

  • Heo, Chung-Ho
    • Electronics and Telecommunications Trends
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    • v.12 no.5 s.47
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    • pp.14-27
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    • 1997
  • ATM망이 백본으로 구성되고 여기에 라우터들이 접속된 통신망 환경 또는 인접한 라우터간에 ATM망이 접속된 통신망 환경에서, 자원예약 프로토콜의 일종인 RSVP(resource reservation protocol)를 지원하기 위해 필요한 사항들을 검토한다. 수신측에서 보낸 예약 메시지를 ATM망에서의 리소스 확보방식과 RSVP 자원예약을 실시하는 환경에서 가상 커넥션을 설정하는 방식에 대한 내용을 다룬다.

A Cross-layer Link Adaptive HD Video Transmission Scheme in WiMedia D-MAC based UWB Systems

  • Joo, Yang-Ick
    • Journal of Korea Multimedia Society
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    • v.15 no.12
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    • pp.1464-1474
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    • 2012
  • In this paper, we propose a QoS (Quality of Service)-aware and cooperative resource reservation scheme using cross-layer link adaptation for wireless high definition video transmission through UWB (Ultra Wide Band) network with D-MAC (Distributed Medium Access Control). A wireless high definition video transmission system usually requires stable high throughput even without line-of-sight, e.g., a destination device in another room separated by a wall. Since the WiMedia D-MAC supporting DRP (Distributed Reservation Protocol) scheme causes lots of DRP resource reservation conflicts due to failure of beacon detection in wireless channel environment, overall performances of the WiMedia D-MAC can be deteriorated. And the current WiMedia MAC standard has not considered QoS provisioning even though QoS parameters such as a range of service rates are provided to each traffic stream. Therefore, we propose Relay DRP protocol with QoS-based relay node selection criterion, which makes a relay path to avoid DRP resource reservation conflicts and guarantee QoS more stably through cross-layer link adaptation of cooperative relay transmission scheme and is compliant with the current WiMedia D-MAC protocol. Simulation results demonstrate performance improvements of the proposed method for throughput and QoS provisioning.

An NSIS based Resource Reservation Protocol for Hose model VPN Service (Hose 모델 VPN 서비스를 위한 NSIS 기반 자원 예약 프로토콜)

  • Byun, Hae-Sun;Lee, Mee-Jeong
    • The KIPS Transactions:PartC
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    • v.14C no.7
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    • pp.559-570
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    • 2007
  • In this paper, we define a Hose-NSIS-QoSM, which reserves and manages resources according to the hose based resource provisioning mechanisms for supporting the VPN QoS(Quality of Service) using the NSIS(Next Step in Signaling) signaling protocol. Specifically, we specify the NSIS message objects, the structures of QoS NSLP(NSIS Signaling Layer Protocol)/NTLP(NSIS Transport Layer Protocol)/RMF(Resource Management Function) state tables and the processing of the signaling messages in NSIS nodes. Also, we compare the Hose-NSIS-QoSM with the Hose-RSVP-TE-QoSM that supports the hose based VPN QoS in the MPLS networks using the extended RSVP-TE mechanism.

A Resource Reservation Protocol for Mobile Hosts in Wireless Mobile Networks (무선 이동망에서의 이동 호스트를 지원하기 위한 자원 예약 프로토콜)

  • Kim, Min-Sun;Suh, Young-Joo;An, Syung-Og
    • Journal of KIISE:Information Networking
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    • v.29 no.4
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    • pp.428-436
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    • 2002
  • Providing a mobile host with its required QoS is highly influenced by its mobility. The resource ReSerVation Protocol(RSVP) establishes and maintains a reservation state to ensure a given QoS level along the path from the sender to the receiver. However, RSVP is designed for use in fixed networks and thus it is inadequate in the mobile networking environment where a host changes its point of attachment. In this paper, we propose a new resource reservation protocol, RSVP-RA(RSVP by RSVP Agent) for mobile hosts. Our protocol assumes IETF Mobile IP as a mobility support mechanism. The proposed protocol introduce a new protocol entity - RSVP agent - to manage reservations in a mobile host's current visiting network. RSVP Agent is located in a local network and makes resource reservations in neighboring cells that the mobile host is expected to visit in the future. Thus, the proposed Protocol can provide a seamless QoS to the mobile host and significantly improve the scalability problem of RSVP by reducing the end-to-end signalling messages acrossing the backbone networks. The proposed protocols reduce packet delay, bandwidth overhead and the number of RSVP messages to maintain reservation states. We compared the performance of our proposed protocol with other proposed protocols in terms of signalling overhead, packet delay by simulation.

Reservation Conflict-Free MAC Design for Mobile Wireless USB Devices with Distributed MAC

  • Joo, Yang-Ick;Kwon, Moon Kyu
    • Journal of Korea Multimedia Society
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    • v.15 no.10
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    • pp.1212-1220
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    • 2012
  • In this paper, a collision-free resource reservation scheme for WUSB (Wireless Universal Serial Bus) networks with WiMedia D-MAC (Distributed Medium Access Control). Since distributed characteristic of the WiMedia D-MAC supporting DRP (Distributed Reservation Protocol) scheme may cause lots of conflicts, overall performances of the WUSB with WiMedia D-MAC can be deteriorated. In addition, when we consider multi-hop environment, "mobile" hidden node problem due to mobility of WUSB devices can be happened, and it is a critical problem to mobile WUSB devices transceiving real-time QoS (Quality of Service) traffic. To tackle the problem, we propose a new DRP reservation mechanism to prevent DRP conflicts for multi-hop mobility support in WUSB networks with WiMedia D-MAC and show its improved performance via simulation results.

A Reservation-based HWMP Routing Protocol Design Supporting E2E Bandwidth in TICN Combat Wireless Network (TICN 전투무선망에서의 종단간 대역폭을 보장하는 예약 기반 HWMP 라우팅 프로토콜 설계)

  • Jung, Whoi Jin;Min, Seok Hong;Kim, Bong Gyu;Choi, Hyung Suk;Lee, Jong Sung;Lee, Jae Yong;Kim, Byung Chul
    • Journal of the Korea Institute of Military Science and Technology
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    • v.16 no.2
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    • pp.160-168
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    • 2013
  • In tactical environment, tactical wireless networks are generally comprised of Tactical MANETs(T-MANETs) or Tactical WMNs(T-WMNs). The most important services in tactical network are voice and low rate data such as command control and situation awareness. These data should be forwarded via multi-hop in tactical wireless networks. Urgent and mission-critical data should be protected in this environment, so QoS(Quality of Service) must be guaranteed for specific type of traffic for satisfying the requirement of a user. In IEEE 802.11s, TDMA-based MAC protocol, MCCA(MCF Controlled Channel Access), has a function of resource reservation. But 802.11s protocol can not guarantee the end-to-end QoS, because it only supports reservation with neighbors. In this paper, we propose the routing protocol, R-HWMP(Reservation-based HWMP) which has the resource reservation to support the end-to-end QoS. The proposed protocol can reserve the channel slots and find optimal path in T-WMNs. We analyzed the performance of the proposed protocol and showed that end-to-end QoS is guaranteed using NS-2 simulation.

QoS-Guaranteed Realtime Multimedia Service Provisioning on Broadband Convergence Network(BcN) with IEEE 802.11e Wireless LAN and Fast/Gigabit Ethernet

  • Kim, Young-Tak;Jung, Young-Chul;Kim, Seong-Woo
    • Journal of Communications and Networks
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    • v.9 no.4
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    • pp.511-523
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    • 2007
  • In broadband convergence network(BcN), heterogeneous broadband wired & wireless subnetworks and various terminal equipments will be interconnected. In order to provide end-to-end realtime multimedia services on such heterogeneous networking environment, as a result, two major problems should be resolved: i) Multimedia session establishment & negotiation that adjusts the differences in the capability of multimedia data processing at the end terminal nodes, ii) quality of service(QoS)-guaranteed connection establishment or resource reservation with connection admission control(CAC) in each heterogeneous subnetworks along the path. The session layer signaling(e.g., SIP/SDP) should be extended for QoS negotiation, and must be tightly cooperating with network layer signaling or resource reservation with CAC function. In this paper we propose a session and connection management architecture for the QoS-guaranteed realtime multimedia service provisioning on BcN, with Q-SIP/SDP, resource reservation protocol with traffic engineering extension, and CAC functions. The detailed interaction scenario and related algorithms for QoS-guaranteed realtime multimedia session, resource reservation and connection establishment are explained and analyzed. From the experimental implementation of the proposed scheme on a small scale BcN testbed, we verified that the proposed architecture is applicable for the realtime multimedia service provisioning. We analyze the network performance and QoS parameters in detail.

A Pre-Resource Reservation Mechanism using NSIS protocol (NSIS 프로토콜을 이용한 사전자원예약 방안)

  • Kim, Sun-Young;Byun, Hae-Sun;Lee, Mee-Jeong
    • Journal of KIISE:Information Networking
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    • v.35 no.6
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    • pp.538-548
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    • 2008
  • In the Internet Engineering Task Force(IETF), Next Step in Signaling(NSIS) working group, proposed a mechanism to discover the Crossover Node(CRN), when the route is changed by Mobile Node(MN) handover. The CRN is divergence or convergence node on old and new path for reserving resources. Trough the CRN discovery mechanism, it possible to reduce a signaling delay and avoid the redundant reservation on the common path between old and new path. However, the QoS(Quality of Service) can be guaranteed continuously while the MN is performing handover, it is needed to pre-reserve the resource on the new path before completion of the handover. When the nodes on the new path try to make a pre-resource reservation before the handover, it is difficult to pre-reserve the resource with the existing CRN discovery mechanism. Therefore, we proposed a Passive CRN(PCRN) discovery scheme and pre-resource reservation mechanism. The PCRN which means an initial common point between the current reserved and the new paths, where the handover can take place.

A Reservation-Based Protocol for Timely Web Services Transaction (시간 요구 웹서비스 트랜잭션을 위한 예약기반 규약)

  • Lin, Qing;Nasridinov, Aziz;Byun, Jeongyong
    • Annual Conference of KIPS
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    • 2010.11a
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    • pp.996-999
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    • 2010
  • Business transactional process is usually long running computation which requests services from multiple enterprises. Web Services Transaction specification (WS-TX) defines a protocol, WS-BusinessActivity which is specifically designed for such lengthy interaction and maintains overall consistency through compensation. However timely web services transaction is prone to compensate due to tasks' missing deadline. Therefore, this paper proposes a reservation-based protocol which is used to select providers who can provide resources promptly and deselect ones who may fail. And this selection happens during resource reservation phase and before real commitment. In this way, we achieve the goal of minimizing transactions' compensation. Finally, we design the framework architecture for the proposed protocol that is extended from WS-BusinessActivity.

A Study on the Multipath Reservation using RSVP (RSVP를 이용한 다중경로 예약에 관한 연구)

  • 한대관;최대우
    • Proceedings of the Korea Multimedia Society Conference
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    • 2002.05c
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    • pp.443-448
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    • 2002
  • 인터넷의 서비스 품질(QoS : Quality of Service)에 대한 요구가 점차 커지고 있다. 본 논문에서는 QoS 보장 방법중의 하나인 RSVP(Resource Reservation Protocol)에 대하여 기술하고 RSVP 사용에 알맞은 edge망에서 네트워크 대역을 예약하는 과정에서 생기는 문제점를 지적하고, 이에 대한 해결방안으로서 다중경로 예약방식을 제안하였으며, 그 성능을 시뮬레이션을 통하여 분석하였다.

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