卫星数据分发系统中的分组级FEC技术性能分析
The Performance Analysis of Applying Packet Level FEC to Satellite Data Distribution Systems
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摘要: 本文根据所给出的信道差错模型和里德所罗门删除码(RSE)编码技术，研究了在卫星数据分发系统中采用分组级前向纠错(FEC)技术的文件成功分发概率和吞吐量效率与文件长度、分组长度、接收站点数及RSE码纠错能力之间的关系，所得到的结论对于卫星数据分发系统中的参数选择及性能优化具有指导意义。
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关键词:
- 分组级FEC;卫星通信; 数据分发
Abstract: Based on the given channel error model and Reed-Soloman Erasure (RSE) coding scheme, the relation between file successful distribution probability as well as throughput efficiency versus length of file, length of packet, number of receiving stations and the error correcting capacity of RSE is studied in the paper. The results are valuable for the parameter selection and performance optimization in satellite data distribution systems. -
张有志. 卫星组播通信中的分组级FEC技术研究. [硕士论文]，南京：解放军理工大学，2004.[2]周坡. Ka频段卫星信道中IP可靠组播协议研究. [硕士论文]，南京：解放军理工大学，2004.[3]McAuley A. Reliable broadband communication using a burst erasure correcting code[J].Computer Communication Review.1990, 20(4):297-[4]Nonnenmacher J, Biersack E, Towsley D. Parity-based loss recovery for reliable multicast transmission[J].IEEE/ACM Trans. on Networking.1998, 6(4):349-[5]Huitema C. The case for packet level FEC. Proc. IFIP 5th Int. Workshop on Protocols for High Speed Networks (PfHSN96), Sophia Antipolis, France, Oct. 1996: 110120. -
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