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首页> 外文期刊>Parallel and Distributed Systems, IEEE Transactions on >A Cross-Layer Approach-Based Gnutella for Collaborative Virtual Environments over Mobile Ad Hoc Networks
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A Cross-Layer Approach-Based Gnutella for Collaborative Virtual Environments over Mobile Ad Hoc Networks

机译：移动自组织网络上基于层方法的Gnutella用于协作虚拟环境

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摘要

Collaborative Virtual Environments (CVEs) such as military training programs, emergency preparedness simulations, and online games place strict requirements on network performance when participating users share the 3D virtual environment through their mobile devices in an ad hoc network. However, most support systems for existing CVEs are confined to a desktop setting, thus preventing collaboration while users are mobile. In this work, we propose and evaluate a Gnutella peer-to-peer network over mobile ad hoc networks (MANETs) to support Mobile Collaborative Virtual Environment (MCVE) applications. Both architectures share some common features such as decentralization, self-reorganization, and self-healing. However, peer-to-peer networks and MANETs operate on different network layers, and thus, cause poor performance. To address this problem, we explore a novel cross-layer approach to improve the overall performance of CVEs over MANETs. The network layer should be aware of the user's physical position in the virtual environment (VE) in order to minimize network traffic and cope with a moderate workload between nodes. In this paper, we present a cross-layer approach model for collaborative virtual environment over MANET. We describe its implementation and evaluate its performance using NS2 simulator.
机译：当参与的用户通过自组织网络中的移动设备共享3D虚拟环境时，诸如军事训练计划，应急准备模拟和在线游戏之类的协作虚拟环境（CVE）对网络性能提出了严格的要求。但是，现有CVE的大多数支持系统都限于台式机设置，因此在用户移动时无法进行协作。在这项工作中，我们提出并评估了基于移动自组织网络（MANET）的Gnutella对等网络，以支持移动协作虚拟环境（MCVE）应用程序。两种体系结构都具有一些共同的特征，例如分散，自我重组和自我修复。但是，对等网络和MANET在不同的网络层上运行，因此会导致性能下降。为了解决这个问题，我们探索了一种新颖的跨层方法来提高MANET上CVE的整体性能。网络层应了解用户在虚拟环境（VE）中的物理位置，以最大程度地减少网络流量并应对节点之间的中等工作量。在本文中，我们提出了一种用于MANET上的协作虚拟环境的跨层方法模型。我们描述它的实现并使用NS2模拟器评估其性能。

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