A quickly deployable platform for multi-user communications over satellite links

2009 International Workshop on Satellite and Space Communications Pub Date : 2009-10-13 DOI:10.1109/IWSSC.2009.5286321

R. Boreli, T. Iyer, Christoph Dwertmann, Golam Sarwar, F. Klok

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引用次数: 2

Abstract

We describe the research outcomes and resulting implementation and validation of a prototype IP telephony and data acceleration system for satellite communications. The system has been designed as a quickly deployable solution for generic use with fixed or mobile satellite services on land or sea. It has been developed in NICTA within the Office in a Box project and is currently being commercialised in 7-ip. Our main research contribution is a TCP proxy for long delay links, based on a novel congestion control and scheduling algorithm which incorporates lossless data compression. Additional contribution is in proposing and developing a silence suppression enhancement to the Asterisk IP telephony gateway. We describe the system and software architecture and software modules which include the satellite modem controller for the management of Inmarsat broadband satellite services. The system has been tested on a number of satellite services including Inmarsat BGAN, IPSTAR and VSAT systems. We present results of validation testing for multi-user IP telephony and data services and show performance improvement compared to standard solutions.

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通过卫星链路进行多用户通信的快速部署平台

我们描述了一个用于卫星通信的原型IP电话和数据加速系统的研究成果和最终实现和验证。该系统被设计为一种快速部署的解决方案，用于陆地或海上的固定或移动卫星服务。它已经在NICTA的Office in a Box项目中开发，目前正在7-ip中商业化。我们的主要研究贡献是基于一种新的拥塞控制和调度算法的长延迟链路TCP代理，该算法包含无损数据压缩。另外的贡献是在建议和开发沉默抑制增强Asterisk IP电话网关。介绍了该系统的软件架构和软件模块，其中包括用于管理Inmarsat宽带卫星业务的卫星调制解调器控制器。该系统已在若干卫星业务上进行了测试，包括Inmarsat BGAN、IPSTAR和VSAT系统。我们展示了多用户IP电话和数据服务的验证测试结果，并显示了与标准解决方案相比性能的改进。

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2009 International Workshop on Satellite and Space Communications

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