在DVB-RCS2链路上传输TCP流量的突发方法

2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD) Pub Date : 2015-09-01 DOI:10.1109/CAMAD.2015.7390504

A. Salam, M. Luglio, C. Roseti, F. Zampognaro

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引用次数: 17

摘要

DVB-RCS2旨在提高卫星信道的灵活性，以支持广泛的应用。特别是，带宽随需应变(BoD) MAC配置文件允许用于典型的Internet应用程序的批量传输。根据对以前DVB-RCS系统的评估，TCP性能在这种情况下严重受损，主要是因为大延迟，而BoD访问延迟进一步膨胀。此外，Web流量变得越来越突发，使得TCP连接结果的数量增加，而每个连接管理的数据量却很少。TCP Wave是一种以突发传输方式代替滑动窗口的新协议，其目的是为了加快短时间传输的速度。本文通过Ns-3上实际的DVB-RCS2实现，评估了TCP Wave与标准TCP机制(即TCP NewReno)的性能。本文的主要贡献是首次分析了TCP-IP协议上DVB-S2/DVB-RCS2的实际操作。

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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A burst-approach for transmission of TCP traffic over DVB-RCS2 links

DVB-RCS2 is conceived to improve satellite channel flexibility in supporting a vast gamut of applications. In particular, a Bandwidth on Demand (BoD) MAC profile is allowed for bulk transfers typical of Internet applications. As assessed for previous DVB-RCS systems, TCP performance is seriously impaired in this context mainly because of large latency, further inflated by BoD access delay. In addition, Web traffic became more and more bursty, so that the number of TCP connections results increased, while each connection manages a small amount of data. TCP Wave is a new protocol designed to transmit in burst instead of using Sliding Window concept with the objective to accelerate transmission of short transfers. This paper assesses TCP Wave performance in comparison with standard TCP mechanisms (i.e. TCP NewReno) over a realistic DVB-RCS2 implementation on the Ns-3. The main contribution herein provided is a first analysis of the actual DVB-S2/DVB-RCS2 operations on TCP-IP protocols.

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2015 IEEE 20th International Workshop on Computer Aided Modelling and Design of Communication Links and Networks (CAMAD)

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