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首页> 外文会议>Information Networking: Advances in Data Communications and Wireless Networks; Lecture Notes in Computer Science; 3961 >Network-Initiated Fast Handover Scheme Using Virtual Connection over All-IP-Based Wireless Systems
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Network-Initiated Fast Handover Scheme Using Virtual Connection over All-IP-Based Wireless Systems

机译：通过基于All-IP的无线系统上的虚拟连接的网络启动的快速切换方案

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摘要

Most of mobility protocols use mobile host (MH)-initiated schemes. However they may cause excessive signaling traffic and long latency for packet delivery. We propose cross-layer, i.e., layer-2 (L2) and layer-3 (L3), handover mechanism with network-initiated handover. It makes virtual connection between the home agent (HA) and the next neighboring Access Control Routers (ACRs), called candidate ACRs, which the MH is predicted to be attached to, with information such as required bandwidth, Quality-of-Service (QoS), and estimated handover delay. Proposed scheme searches candidate ACRs using predicted traveling distance of MH for L3 handover and makes virtual connection prior to L2 handover. In this paper, our goals are to decrease packet loss rate and packet delivery latency which occur due to frequent handover over all-IP-based wireless systems. We have evaluated the performance of our scheme through a series of simulations using the Network Simulator 2 (ns-2).
机译：大多数移动协议使用移动主机（MH）启动的方案。但是，它们可能会导致过多的信令流量和较长的数据包传递延迟。我们提出了跨层（即第2层（L2）和第3层（L3）），具有网络启动的切换的切换机制。它在家乡代理（HA）与称为候选ACR的下一个相邻访问控制路由器（ACR）之间进行虚拟连接，并预测MH会附加到该候选连接，并带有诸如所需带宽，服务质量（QoS）之类的信息），以及估计的切换延迟。提议的方案使用MH的预计行进距离来搜索候选ACR以进行L3切换，并且在L2切换之前进行虚拟连接。在本文中，我们的目标是减少由于频繁切换基于全IP的无线系统而导致的丢包率和包传递延迟。我们使用网络仿真器2（ns-2）通过一系列仿真评估了我们方案的性能。

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