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首页> 外文期刊>情報処理学会論文誌 >A Heterogeneous Multihop Wireless Access Network for Multipoint Streaming: A detailed Performance Analysis
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A Heterogeneous Multihop Wireless Access Network for Multipoint Streaming: A detailed Performance Analysis

机译：一种用于多点流的异构多跳无线接入网络：详细的性能分析

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摘要

The current 3G-Cellular radio access network cannot support many concurrent high data rate unicast or multicast flows due to limited radio resources. We have proposed a heterogeneous wireless network architecture intended for point-to-multipoint services, to improve the availability of such services to mobile users. The architecture consists of a 3G-Cellular network, supported by a number of local ad hoc networks that are established on demand. In this framework the 3G multipoint-channel range is reduced while the unicast and signalling connections are maintained. Local ad hoc networks are used to forward the multicast data onto users located outside the shortened 3G multicast-channel range. In this paper we present a performance analysis of multicast streaming on the heterogeneous network architecture. The simulation results are complemented with a sensitivity analysis identifying the impact that parameters like node mobility and traffic patterns will have. The results verify that the architecture and the routing protocol are able to provide multicast services with acceptable quality to the multicast subscribers, while conserving 3G-Cellular radio resources.
机译：由于无线电资源有限，当前的3G蜂窝无线接入网络无法支持许多并发的高数据速率单播或组播流。我们提出了一种用于点对多点服务的异构无线网络架构，以提高此类服务对移动用户的可用性。该架构由一个 3G 蜂窝网络组成，由许多按需建立的本地自组织网络提供支持。在此框架中，3G多点信道范围减小，同时保持单播和信令连接。本地自组网用于将组播数据转发到缩短的 3G 组播信道范围之外的用户。在本文中，我们提出了异构网络架构上组播流的性能分析。仿真结果辅以灵敏度分析，确定节点移动性和流量模式等参数将产生的影响。研究结果验证了该架构和路由协议能够为组播用户提供质量可接受的组播服务，同时节省了3G蜂窝无线电资源。

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