• Title/Summary/Keyword: Network-based mobility

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Mobility-adaptive QoE Provisioning Solution in Heterogeneous Wireless Access Networks

  • Kim, Moon;Cho, Sung-Joon
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.8B
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    • pp.1159-1169
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    • 2010
  • This paper introduces the mobility-adaptive QoE provisioning solution. The key is placed on the intelligent selection of access network depending on the QoE criteria classified by the user mobility and the bandwidth demand for service. We further focus on the network-based smart handover scheme using the mobility-adaptive handover decision and the enhanced MIH-FMIP framework. The concept is the network-based calm service and the balance in order to facilitate vertical and seamless handover. In result, it is figured out that our solution improves QoE performance by selecting appropriate access network, repressing handover occurrence, and reducing handover delay as well.

Analytical Approach of New Random-walk Based Mobility Management Scheme in IP-based Mobile Networks

  • Song, Myungseok;Cho, Jun-Dong;Jeong, Jongpil
    • International Journal of Advanced Culture Technology
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    • v.2 no.1
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    • pp.1-13
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    • 2014
  • In next-generation wireless networks, provisioning of IP-based network architecture and seamless transmission services are very important issues for mobile nodes. For this reason, a mobility management mechanism to support global roaming is highly regarded. These technologies bring a broader life by using a global roaming account through the connection of multiple devices or technology to mobile users; they also provide real-time multimedia services. This paper presents a comprehensive performance analysis of fast handover for hierarchical mobile IPv6 (F-HMIPv6), hierarchical mobile IPv6 (HMIPv6), Proxy Mobile IPv6 (PMIPv6), and fast Proxy Mobile IPv6 (FPMIPv6) using the fluid-flow model and random-walk model. As a result, the location update cost of the PMIPv6 and FPMIPv6 is better than that of HMIPv6 and F-HMIPv6. These results suggest that the network-based mobility management technology is superior to the hierarchical mobility management technology in the mobility environment.

Performance Analysis of Distance-Based Registration and Selective Paging in IMT-2000 Network (IMT-2000 망에서 거리기준 위치등록 및 선택적 페이징의 성능분석)

  • 유병한;최대우;백장현
    • Journal of the Korean Operations Research and Management Science Society
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    • v.26 no.3
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    • pp.53-63
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    • 2001
  • An efficient mobility management for mobile stations plays an important role in mobile communication network. This paper studies the mobility management scheme that combines a distance-based registration(DBR) and a selective paging (SP). We introduce an analytical model based on 2-dimensional random walk mobility model and evaluate the performance of the proposed mobility management scheme using the model to determine the optimal size of location area that results in the minimum signaling traffic on radio channels. Numerical results are provided to demonstrate the performance of the proposed mobility management scheme under various circumstances. These results can be used effectively in design and evaluation of registration methods considering the system circumstances.

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Performance Evaluation of Mobile Ad Hoc Network Routing Protocols Using Geography Based Mobility Model (지형기반 이동성모델을 이용한 Ad Hoc망에서의 경로배정 프로토콜 성능분석)

  • 박범진;안홍영
    • Proceedings of the IEEK Conference
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    • 2003.07a
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    • pp.153-156
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    • 2003
  • Conventional simulations for mobile ad hoc network so far are based on the "random walk" of the mobile nodes, which are not constrained by their surrounding spatial environments. In this paper, we present a geography-based mobility model, which reflects more realistic movements of the real world. This mobility model is used for performance evaluation of MANET routing protocols.protocols.

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Performance Comparison of Transport vs. Network Layer Mobility Management Mechanisms (트랜스포트 계층과 네트워크 계층 이동성 관리 방안들의 성능비고)

  • Chang, Moon-Jeong;Lee, Mee-Jeong
    • Journal of KIISE:Information Networking
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    • v.33 no.1
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    • pp.28-37
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    • 2006
  • Recently, transport layer mobility supporting approaches based on SCTP, which is a new standard transport layer protocol, are proposed. In this paper, the handover performance and overheads of these transport layer mobility supporting approaches are compared to those of the traditional network layer mobility supporting approaches. Through the simulation results, it is shown that the handover performance of the transport layer mobility supporting approaches is better or at least similar to that of the plain MIPv6, which is the representative network layer mobility supporting approach. With respect to the amount of control packet, the transport layer approaches impose less overhead than any of the network layer approaches.

Optimal Header Compression of MIPv6 and NEMO Protocol for Mobility Support in 6LoWPAN (6LoWPAN의 이동성 지원을 위한 MIPv6와 NEMO Protocol의 최적 헤더 압축)

  • Ha, Min-Keun;Hong, Sung-Min;Kim, Young-Joo;Kim, Dae-Young
    • Journal of KIISE:Computing Practices and Letters
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    • v.16 no.1
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    • pp.55-59
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    • 2010
  • Currently in a Ubiquitous Sensor Network (USN) research field, supporting mobility is recognized as an important technology. MIPv6 and Network Mobility(NEMO) Basic Support Protocol are standard protocols to support mobility in the Internet. However, if they are applied to USN with no modification, handoff performance decreases due to the size of their binding message. An existing lightweight protocol for NEMO protocol has a compatibility problem of Sequence Num. and does not optimally compress binding messages considering 6LoWPAN network structure and addressing. This paper proposes optimal header compression which supports node-based mobility and network-based mobility. Our optimal compression technique compresses a 32bytes binding update(BU) message and a 12bytes binding ACK(BA) message of MIPv6 into 13bytes and 3bytes, and a 40bytes BU message and a 12bytes BA message of NEMO protocol into 13bytes and 3bytes. The result shows that our protocol compresses 15bytes (NEMO-BU) and 1byte (NEMO-BA) more than the existing protocol and achieves 8.72% handoff performance improvement.

Implementation of Node Transition Probability based Routing Algorithm for MANET and Performance Analysis using Different Mobility Models

  • Radha, Sankararajan;Shanmugavel, Sethu
    • Journal of Communications and Networks
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    • v.5 no.3
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    • pp.202-214
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    • 2003
  • The central challenge in the design of ad-hoc networks is the development of dynamic routing protocol that efficiently finds route between mobile nodes. Several routing protocols such as DSR, AODV and DSDV have been proposed in the literature to facilitate communication in such dynamically changing network topology. In this paper, a Node Transition Probability (NTP) based routing algorithm, which determines stable routes using the received power from all other neighboring nodes is proposed. NTP based routing algorithm is designed and implemented using Global Mobile Simulator (GloMoSim), a scalable network simulator. The performance of this routing algorithm is studied for various mobility models and throughput, control overhead, average end-to-end delay, and percentage of packet dropped are compared with the existing routing protocols. This algorithm shows acceptable performance under all mobility conditions. The results show that this algorithm maximizes the bandwidth utilization during heavy traffic with lesser overhead.

Paging extensions for HMIPv6: P-HMIPv6 (페이징 서비스를 위한 HMIPv6의 확장: P-HMIPv6)

  • 이준섭
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2003.05a
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    • pp.222-225
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    • 2003
  • IP-based mobility management is a core technology in the next generation network environment. MIPv6 is introduced to support for mobility in global network, and HMIPv6 is being considered as a local mobility management protocol to reduce signaling overhead for mobility management in the global network. Also, the paging technology is introduced to IP-based network to reduce signaling overhead and power consumption for mobility management. In this paper, we propose P-HMIPv6 which enables IP paging service in HMIPv6 to reduce signaling overhead for local mobility management in MAP domain of HMIPv6.

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Delay Tolerant Network Routing Algorithm based on the Mobility Pattern of Mobile Nodes (이동 노드의 이동 패턴을 고려한 Delay Tolerant Network 라우팅 알고리즘)

  • So, Sang-Ho;Park, Man-Kyu;Park, Se-Chul;Lee, Jae-Yong;Kim, Byung-Chul;Kim, Dae-Young;Shin, Min-Su;Chang, Dae-Ig;Lee, Ho-Jin
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.46 no.4
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    • pp.13-28
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    • 2009
  • Routing protocols in Delay/Disruption Tolerant Networks(DTN) are important to enhance the performance of transmission delay and delivery success ratio. In this paper, we propose an efficient DTN routing algorithm, called "Nobility Pattern based Routing(MPR)", that controls the total number of transferred message copies based on mobility patterns of mobile nodes. We consider a realistic "Levy walk" mobility pattern that has a super-diffusive property which well represents human mobility pattern. We implemented a DTN simulator using ONE simulator for the proposed MPR algorithm and Levy walk mobility pattern. Simulation results show that mobility patterns are very important for accurate evaluation of DTN routing performance, and the proposed MPR enhances the routing performance of delivery delay and success delivery ratio under realistic mobility pattern.

A Fault-tolerant Network-based Mobility Management Scheme for Supporting Multi-media Services (방통융합 멀티미디어 서비스를 제공하기 위한 안정된 네트워크 기반의 이동성 관리 기술)

  • Lee, Sung-Kuen;Lee, Kyoung-Hee;Hong, Kang-Woon;Um, Tai-Won;Lee, Hyun-Woo;Ryu, Won;Park, Jin-Woo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.3B
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    • pp.526-535
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    • 2010
  • In this paper, we propose the fault-tolerant network-based mobility management scheme for supporting multimedia services of broadcasting & communications convergence in fixed mobile convergence (FMC) networks. The proposed scheme is based on AIMS (Access Independent Mobility Service) which is developed for the mobility support among heterogeneous access networks. To support stable location management and handover control for a MN, the proposed scheme supports stable management of binding information by sensing network attachment and detachment of a mobile node (MN). In addition, the proposed fault-tolerant (FT) AIMS supports a function of message retransmission for the support of handover control message and a function of heartbeat message transmission for the support of stable access network environments to a mobile node. We evaluate and analyze the performance of the proposed scheme through the implementation of AIMS system test-bed.