衛(wèi)星數(shù)據(jù)分發(fā)系統(tǒng)中的分組級(jí)FEC技術(shù)性能分析
The Performance Analysis of Applying Packet Level FEC to Satellite Data Distribution Systems
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摘要: 本文根據(jù)所給出的信道差錯(cuò)模型和里德所羅門刪除碼(RSE)編碼技術(shù)，研究了在衛(wèi)星數(shù)據(jù)分發(fā)系統(tǒng)中采用分組級(jí)前向糾錯(cuò)(FEC)技術(shù)的文件成功分發(fā)概率和吞吐量效率與文件長(zhǎng)度、分組長(zhǎng)度、接收站點(diǎn)數(shù)及RSE碼糾錯(cuò)能力之間的關(guān)系，所得到的結(jié)論對(duì)于衛(wèi)星數(shù)據(jù)分發(fā)系統(tǒng)中的參數(shù)選擇及性能優(yōu)化具有指導(dǎo)意義。
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關(guān)鍵詞:
- 分組級(jí)FEC;衛(wèi)星通信; 數(shù)據(jù)分發(fā)
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. -
張有志. 衛(wèi)星組播通信中的分組級(jí)FEC技術(shù)研究. [碩士論文]，南京：解放軍理工大學(xué)，2004.[2]周坡. Ka頻段衛(wèi)星信道中IP可靠組播協(xié)議研究. [碩士論文]，南京：解放軍理工大學(xué)，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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