Implementation of the OBAMP overlay protocol for multicast delivery in OLSR wireless community networks

2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM) Pub Date : 2010-06-14 DOI:10.1109/WOWMOM.2010.5534941

F. Proto, Claudio Pisa

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Abstract

The Optimized Link State Routing (OLSR) protocol is widely employed in Wireless Community Networks (WCNs), where users are connected to a wireless backbone with high bandwidth links. In these networks users can access both the Internet and internal network services. However the routers lack multicast support and users cannot exploit the high capacity of wireless links to stream and receive multimedia services. We implemented an extension to the OLSR protocol to support the delivery of multicast traffic using the Overlay Borovka-based Ad-hoc Multicast Protocol (OBAMP). We present a demo of our implementation that is devised for the GNU/Linux operating system. The implementation has been tested both on standard PCs and on embedded devices running OpenWRT and it is distributed as a plugin within the olsr.org OLSR implementation. This protocol enhancement makes possible to create a multicast distribution tree among a subset of nodes, providing the mesh users with multicast community services.

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OLSR无线社区网络中多播传输的OBAMP覆盖协议的实现

优化链路状态路由(OLSR)协议广泛应用于无线社区网络(Wireless Community network, wcn)中，用户需要连接到具有高带宽链路的无线骨干网。在这些网络中，用户可以访问Internet和内部网络服务。然而，路由器缺乏组播支持，用户无法利用无线链路的高容量进行流传输和接收多媒体业务。我们实现了对OLSR协议的扩展，以支持使用基于Overlay borovka的Ad-hoc多播协议(OBAMP)传输多播流量。我们展示了为GNU/Linux操作系统设计的实现的演示。该实现已经在标准pc和运行OpenWRT的嵌入式设备上进行了测试，并且它作为olsr.org OLSR实现中的插件发布。该协议增强使得在节点子集之间创建组播分布树成为可能，从而为网格用户提供组播社区服务。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2010 IEEE International Symposium on "A World of Wireless, Mobile and Multimedia Networks" (WoWMoM)

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