在多路径色通道上对极性编码的OFDM系统进行解码,并提供交错和通道状态信息
Mingbao Wu1, Yi Yu2, Fangying Wan1
1Central South University of Forestry and Technology, Electronic Information and Physics College, Tianxin Area, Changsha City, Hunan Province, 410004, China.
Scientific reports
|December 5, 2024
概括
这项研究增强了在多路径色通道中的极密码直角频率分割多重复合 (OFDM) 系统. 整合通道状态信息和数据包交联显著提高解码性能和错误纠正稳定性.
科学领域:
- 无线通信无线通信
- 信息理论 信息理论
- 信号处理 信号处理
背景情况:
- 直角频率分割多重复合 (OFDM) 系统容易发生多路径色,导致频率选择性色和爆发错误.
- 极点代码提供了强大的错误校正,但在OFDM系统中的频率选择性色下,它们的性能会下降.
- 现有的解码策略难以减轻不同次载波噪声和爆破错误的综合影响.
研究的目的:
- 为了提高在多路径色通道中运行的极性编码OFDM系统的解码性能.
- 开发新的解码策略,以应对子载波噪声变化和爆发错误灵敏度.
- 提高未来无线通信系统的总体传输可靠性和错误纠正能力.
主要方法:
- 将子载波通道状态信息 (CSI) 集成到极性解码器的软信息生成中.
- 实施一个数据包交联方案后极性编码器,以对抗爆破错误.
- 进行模拟,以评估与传统方法对比拟的解码策略.
主要成果:
- 拟议的综合方法在多路径色通道中明显优于传统方案.
- 道状态信息集成有效地减轻了由于子载波SNR变化的性能下降.
- 包串联显示了对频率选择性色引起的爆破误差的增强强性.
结论:
- 组合解码策略对于在多路径色下在Polar-OFDM系统中进行可靠的错误纠正至关重要.
- 这项研究为使用先进的编码和调制的可靠无线通信系统提供了基础.
- 未来的无线系统可以通过同时实现CSI意识解码和数据包交叉实现更高的性能.
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