一个基于极点代码的新型嵌入式侧面信息传输方案,用于在水下声学OFDM通信系统中降低峰值至平均功率比率
Siyu Xing1,2, Bo Wei1,2, Yanting Yu1,2,3
1Institute of Oceanographic Instrumentation, Qilu University of Technology (Shandong Academy of Sciences), Qingdao 266100, China.
Sensors (Basel, Switzerland)
|November 27, 2024
概括
这项研究引入了一种新的方法,用于水下声通信系统,以减少峰值与平均功率比 (PAPR) 使用嵌入式侧面信息 (SI) 在极点代码中. 这提高了数据完整性和实时性能,而不会牺牲数据速率.
科学领域:
- 电气工程 电气工程
- 信号处理 信号处理
- 水下通信是指水下通信.
背景情况:
- 水下声学 (UWA) 直角频率分割多重复合 (OFDM) 系统面临着峰值到平均功率比 (PAPR) 的挑战.
- 侧面信息 (SI) 对接收器性能至关重要,但传统方法可能是低效的.
- 极地代码提供灵活的代码速率和适合嵌入信息的嵌套结构.
研究的目的:
- 提出一个嵌入式侧信息 (SI) 传输方案,以减少UWA OFDM系统中的PAPR.
- 为了利用极性代码属性,在不影响数据速率的情况下,有效地嵌入SI.
- 为了在接收器上实现盲点SI检测,以提高系统性能.
主要方法:
- 开发了一个嵌入式SI传输方案,利用极性代码构造.
- 整合了阶段转移 (PTS) 计划以减少PAPR.
- 在极点代码单词中嵌入SI位,并使用m序列作为指示向量.
- 实现了一个盲目SI探测器,用于自主SI歧视.
主要成果:
- 拟议的方案大大降低了由SI错误引起的全符号错误的可能性.
- 该PTS方案允许实时获取SI,避免数据存储浪费.
- 在UAC OFDM系统中实现了符号级实时计算.
- 模拟和坦克实验验证实了拟议方案的有效性.
结论:
- 嵌入式SI传输方案有效地降低了PAPR,并提高了UWA OFDM系统中的数据可靠性.
- 使用极点代码和盲目SI检测可确保高效的实时通信.
- 这种方法为提高水下声通信性能提供了一个有希望的解决方案.
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