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BATS code with unequal error protection

Authors: Xiaoli Xu 0001; Yong Zeng 0001; Yong Liang Guan 0001; Lei Yuan 0002;

BATS code with unequal error protection

Abstract

Batched sparse (BATS) coding is a class of sparse random linear network coding scheme that achieves near-optimal tradeoff between temporal coding length and network throughput for file delivery over erasure networks. Existing BATS codes are mostly designed for equal error protection only. In practice, there are many applications that favor unequal error protection (UEP) for classifying and protecting the packets with different priorities. In this paper, we propose two classes of BATS code with UEP property, named weighted and expanding window BATS code. The asymptotic decoding probabilities of various types of input packets with the proposed coding schemes are analyzed via And-Or tree evaluation. Furthermore, the degree distributions for UEP BATS codes are optimized with linear programming and their performance is verified by computer simulations.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
11
Top 10%
Top 10%
Top 10%
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