摘 要
随着信息技术的迅猛发展，局域网在各个领域得到广泛应用，数据传输量日益增大，确保数据完整性成为关键问题。本研究旨在探讨局域网环境下数据完整性检验与错误纠正的方法，以提高数据传输可靠性。针对局域网中数据传输易受干扰导致完整性受损的问题，提出基于改进循环冗余校验（CRC）算法结合前向纠错编码（FEC）技术的综合方案。该方案通过优化CRC多项式选择及FEC码率配置，在保证检测效率的同时增强纠错能力。实验结果表明，所提方法能够在不同网络条件下有效降低误码率，平均误码率较传统方法降低约35%，且在高噪声环境下优势更为明显。此外，该方案具有较低的计算复杂度和较好的实时性，适用于多种局域网应用场景。
关键词：局域网数据完整性 循环冗余校验 前向纠错编码
Abstract
With the rapid development of information technology, LAN has been widely used in various fields, and the amount of data transmission is increasing day by day, ensuring data integrity has become a key issue. This study aims to explore the methods of data integrity inspection and error correction in the LAN environment to improve data transmission reliability. In view of the problem of data transmission in LAN, a comprehensive scheme based on improved cycle redundancy checking (CRC) algorithm and forward error correction coding (FEC) technology is proposed. By optimizing the CRC polynomial selection and FEC bit rate configuration, the scheme enhances the error correction ability while ensuring the detection efficiency. The experimental results show that the proposed method can effectively reduce the bit error rate under different network conditions, and the average bit error rate is about 35% lower than the traditional method, and the advantage is more obvious in the high noise environment. Moreover, the proposed scheme has relatively low computational complexity and good real-time performance, which is suitable for various LAN application scenarios.
Keyword:Local Area Network Data Integrity Cyclic Redundancy Check Forward Error Correction Coding
目 录
1绪论 1
1.1局域网数据完整性研究背景与意义 1
1.2国内外研究现状综述 1
1.3本文研究方法与技术路线 2
2局域网数据完整性威胁分析 2
2.1数据传输中的常见错误类型 2
2.2影响数据完整性的因素剖析 3
2.3局域网环境的特殊性分析 3
3数据完整性检验技术研究 4
3.1常用校验算法原理与比较 4
3.2校验码的设计与实现方案 4
3.3检验技术在局域网中的应用 5
4错误纠正机制设计与实现 6
4.1错误纠正的基本原理 6
4.2局域网中纠错编码的应用 6
4.3纠错机制的性能评估与优化 7
结论 7
参考文献 9
致谢 10
随着信息技术的迅猛发展，局域网在各个领域得到广泛应用，数据传输量日益增大，确保数据完整性成为关键问题。本研究旨在探讨局域网环境下数据完整性检验与错误纠正的方法，以提高数据传输可靠性。针对局域网中数据传输易受干扰导致完整性受损的问题，提出基于改进循环冗余校验（CRC）算法结合前向纠错编码（FEC）技术的综合方案。该方案通过优化CRC多项式选择及FEC码率配置，在保证检测效率的同时增强纠错能力。实验结果表明，所提方法能够在不同网络条件下有效降低误码率，平均误码率较传统方法降低约35%，且在高噪声环境下优势更为明显。此外，该方案具有较低的计算复杂度和较好的实时性，适用于多种局域网应用场景。
关键词：局域网数据完整性 循环冗余校验 前向纠错编码
Abstract
With the rapid development of information technology, LAN has been widely used in various fields, and the amount of data transmission is increasing day by day, ensuring data integrity has become a key issue. This study aims to explore the methods of data integrity inspection and error correction in the LAN environment to improve data transmission reliability. In view of the problem of data transmission in LAN, a comprehensive scheme based on improved cycle redundancy checking (CRC) algorithm and forward error correction coding (FEC) technology is proposed. By optimizing the CRC polynomial selection and FEC bit rate configuration, the scheme enhances the error correction ability while ensuring the detection efficiency. The experimental results show that the proposed method can effectively reduce the bit error rate under different network conditions, and the average bit error rate is about 35% lower than the traditional method, and the advantage is more obvious in the high noise environment. Moreover, the proposed scheme has relatively low computational complexity and good real-time performance, which is suitable for various LAN application scenarios.
Keyword:Local Area Network Data Integrity Cyclic Redundancy Check Forward Error Correction Coding
目 录
1绪论 1
1.1局域网数据完整性研究背景与意义 1
1.2国内外研究现状综述 1
1.3本文研究方法与技术路线 2
2局域网数据完整性威胁分析 2
2.1数据传输中的常见错误类型 2
2.2影响数据完整性的因素剖析 3
2.3局域网环境的特殊性分析 3
3数据完整性检验技术研究 4
3.1常用校验算法原理与比较 4
3.2校验码的设计与实现方案 4
3.3检验技术在局域网中的应用 5
4错误纠正机制设计与实现 6
4.1错误纠正的基本原理 6
4.2局域网中纠错编码的应用 6
4.3纠错机制的性能评估与优化 7
结论 7
参考文献 9
致谢 10
