List decoding with statistical check for semi‐random block‐oriented convolutional code

Lin, Wenchao; Wei, Baodian; Ma, Xiao

doi:10.1049/el.2018.8184

Cited by 8 publications

(6 citation statements)

References 5 publications

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“…Therefore, the comprehensive quality of students in the universities is almost at the same level. Stratified and random sampling methods are used in the survey to ensure the rationality of the data (McConnachie et al, 2018;Lin et al, 2019). Stratified sampling is mainly used to select a certain number of samples in different grades of different universities, while random sampling is used to pick up survey samples of different genders, ages, and majors.…”

Section: Survey Designmentioning

confidence: 99%

Challenges of College Students’ Ideological and Political and Psychological Education in the Information Age

Dong

Liu

et al. 2021

Front. Psychol.

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The purpose of the study is to analyze the current situation of ideological and political education and psychological education of college students, and explore the challenges faced by these two kinds of education in the information age. First, different research methods, such as literature research, questionnaire survey, and interdisciplinary research, are used to investigate and study the current situation of ideological and political education and psychological education of college students. Second, the survey data are analyzed to reveal the challenges they have encountered. The results show that there are many problems in ideological and political education, which need to be improved and strengthened. The Internet has a strong attraction for college students, but the purpose of getting online of many college students is not clear. Although it plays an important role in improving teaching quality by helping college students establish correct attitudes toward their study, values, life, and society, ideological and political education lack strong pertinence and effectiveness due to the professionalism of the teachers. And the negative impact of network information on ideological and political education of college students is also obvious. About 11.4% of the respondents believe that network information affects their physical and mental health. About 8.4% of the respondents believe that harmful information on the network is easy to induce students to behave wrongly. About 41% believe that computer games distract them from learning, which indicates that the negative impact of network information on college students cannot be underestimated, and it is imperative to strengthen the ideological and political education of college students. The research provides a useful reference for the ideological and political and psychological education in the information environment and helps to solve the problem in the ideological and political education and psychological education of college students.

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Section: Survey Designmentioning

confidence: 99%

Challenges of College Students’ Ideological and Political and Psychological Education in the Information Age

Dong

Liu

et al. 2021

Front. Psychol.

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“…The key is then to find an easily computable statistic for testing the difference. Based on the similar methodology, a list decoding algorithm based on statistical threshold is proposed for semi‐random block‐oriented convolutional code in [5].…”

Section: Statistical Learningmentioning

confidence: 99%

Packing additional bits into LDPC coded data

Cai

Zhao²,

2019

Electronics Letters

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In this Letter, the authors proposed a novel scheme, with neither extra transmission energy nor extra bandwidth, to transmit additional bits along with low-density parity-check (LDPC) coded payload data. At the transmitter, additional bits are first transformed into a randomlike sequence, which is then superimposed onto the LDPC coded data, resulting in the transmitted sequence. At the receiver, a statistical learning-based algorithm is employed to detect the additional bits. Then the interference of the additional bits is removed and the payload data is recovered by the conventional LDPC decoder. Simulation results show that, for a (3,6)-regular LDPC code of length 8064, ten additional bits can be transmitted reliably with negligible effect on the reliability of the payload data.

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“…In our previous work [12], we have presented a coding scheme based on random superposition to pack extra bits into LDPC coded data. Similar to [17], the decoding of the superposition transmission is aided by an off-line statistical learning. The basic idea is to distinguish the case without from that with superposition of extra bits by the statistical behavior of the syndrome.…”

Section: A Syndrome Statisticsmentioning

confidence: 99%

Free Ride on LDPC Coded Transmission

Cai¹,

Zhao²,

Ma³

2019

Preprint

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In this paper, we formulate a new problem to cope with the transmission of extra bits over an existing coded transmission link (referred to as coded payload link) without any cost of extra transmission energy or extra bandwidth. This is possible since a gap to the channel capacity typically exists for a practical code. A new concept, termed as accessible capacity, is introduced to specify the maximum rate at which the superposition transmission of extra bits is reliable and has a negligible effect on the performance of the coded payload link. For a binary-input output-symmetric (BIOS) memoryless channel, the accessible capacity can be characterized as the difference between the channel capacity and the mutual information rate of the coded payload link, which can be numerically evaluated for very short payload codes. For a general payload code, we present a simple lower bound on the accessible capacity, given by the channel capacity minus the coding rate of the payload code. We then focus on the scenarios where low-density parity-check (LDPC) codes are implemented for the payload link. We propose to transmit extra bits by random superposition for encoding, and exhaustive search (with the aid of statistical learning) for decoding. We further propose, by establishing an auxiliary channel (called syndrome channel) induced from "zero-forcing" over the binary field, to transmit extra bits with structured codes such as repetition codes and first-order Reed-Muller (RM) codes. Numerical results show that up to 60 extra bits can be reliably transmitted along with a rate-1/2 LDPC code of length 8064.

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List decoding with statistical check for semi‐random block‐oriented convolutional code

Cited by 8 publications

References 5 publications

Challenges of College Students’ Ideological and Political and Psychological Education in the Information Age

Challenges of College Students’ Ideological and Political and Psychological Education in the Information Age

Packing additional bits into LDPC coded data

Free Ride on LDPC Coded Transmission

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