Networking

The Effects of Distributed Packet Losses on LT Codes

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Executive Summary

LT codes are a relatively new class of codes (a sub-class of Fountain Codes) in information theory. One application of LT codes is as a packet erasure code. LT codes are a rateless code and are found to be more computationally efficient than other FEC erasure codes. The authors investigate the effect of LT codes in the face of distributed packet loss with the goal of obtaining results that could apply to real-time streaming media applications. Their results in this paper show that with the use of LT codes packet losses on a network lead to an overall effective drop in mean throughput with no information loss.

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