An LT Coding Scheme with Check Degree Growth Based on Controllable Threshold Abstract: To solve the problem of high error floor for LT codes in additive white gaussian noise (AWGN) channels, an improved coding scheme is designed in this paper.

2023年10月14日 · In this paper, the secondary LT coding anti-eavesdropping scheme for LT code degree-1 is analyzed theoretically from the security capacity, complexity, and decoding overhead.

2016年11月27日 · It describes the various auxiliary systems that require power supply like coal handling, boiler, turbine, cooling water etc. It discusses the classification of auxiliaries based on rating and location to decide the suitable voltage levels. The key voltage levels used are 6.6kV, 3.3kV and 415V.

In this paper, an improved encoding scheme for LT codes is designed to reduce the error floor. The main idea of the proposed LT code is to classify the information nodes according to their degrees. Then the low-degree information nodes will be forced to frequently connect to check nodes, which enables all information nodes to obtain enough ...

Aiming at this problem, this paper proposes a shifted Luby transform (SLT) code security scheme for partial information encryption, which is mainly divided into two stages, partial information encryption transfer and degree distribution adjustment.

目的：无速率lt码旨在为大规模数据分发和可靠广播提供一种理想的传输协议。无速率lt码具有三个优良的特点：（1）链路自适应；（2）码率值可无隙切换；（3）反馈方式较为简单。在无线数据传输中有一类重要的应用场景，即不等差错保护（uep）数据传输。

Abstract: To solve the problem of high error floor for LT codes in additive white gaussian noise (AWGN) channels, an improved coding scheme is designed in this paper. The main idea is to design an expanding window to mark the low-degree information nodes, and these nodes will be selected by the check node preferentially.

LT code is an erasure code applied in the deep-space optical communication system. The LT encoding is done by randomly selecting d packets from k source packets and doing XOR of these

2018年7月13日 · When using the soft iterative-decoding method, the variable nodes that are connected to a degree-1 encoding node can be updated with non-zero log-likelihood ratio (LLR) values at the earliest decoder iteration, providing them with a …

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