Bibliographic Details
| Title: |
Finite Block-Length Analog Fountain Codes for Ultra-Reliable Low Latency Communications. |
| Authors: |
Zhang, Ke, Jiao, Jian, Huang, Zixuan, Wu, Shaohua, Zhang, Qinyu |
| Source: |
IEEE Transactions on Communications; Mar2020, Vol. 68 Issue 3, p1391-1404, 14p |
| Subject Terms: |
FOUNTAINS, PARTICLE size determination, CIPHERS, KNOWLEDGE transfer, SIGNAL-to-noise ratio |
| Abstract: |
In this paper, a theoretical framework for the design and evaluation of finite block-length analog fountain codes (AFC) towards ultra-reliable low latency communications (URLLC) is proposed. First, based on the achievable rate analysis and extrinsic information transfer (EXIT) analysis for AFC, we propose a weight adaptive (WA) AFC transmission scheme by introducing a limited feedback link, which can realize the lowest complexity AFC over a wide range SNRs. Further, by combining the conventional EXIT analysis and the dispersion perspective of mutual information, we propose a modified weight selection scheme for short block length WA-AFC (SWA-AFC) scheme. Simulation results show that our SWA-AFC scheme can achieve a superior performance than the existing AFC schemes, and approaching to the Polyansky-Poor-Verdu (PPV) bound. [ABSTRACT FROM AUTHOR] |
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