在弱海洋动荡条件下进行多用户调度的合作NOMA UWOC系统中断概率分析
概括
本研究介绍了用于水下光通信的合作性非对角多重访问 (NOMA) 系统. 拟议的系统提高了远程用户的性能,优于传统方法.
科学领域:
- 水下无线光学通信 (UWOC) 是指水下无线光学通信.
- 合作的非对角多重访问系统 (NOMA)
背景情况:
- 水下物联网需要强大的通信系统.
- 水下通道面临着吸收,散射和流等挑战.
- 现有的系统可能无法满足各种水下应用的需求.
研究的目的:
- 为多用户UWOC提出和分析一个下链合作的NOMA系统.
- 调查解码转发和放大转发中继协议的性能.
- 评估系统在改善远程用户通信方面的有效性.
主要方法:
- 用高斯-拉格尔二次方程式推导的中断概率的分析表达式.
- 考虑水下通道损害:吸收,散射和流.
- 在不同参数下 (水类,数据速率,用户,接收器大小,功率分配) 系统分析断电性能.
主要成果:
- 合作NOMA技术显著提高了远程用户的性能.
- 拟议的系统的性能优于传统的直角多重访问 (OMA) 和非合作的NOMA系统.
- 蒙特卡洛模拟验证了衍生分析表达式的准确性.
结论:
- 合作NOMA是增强多用户UWOC系统的一个有前途的技术.
- 拟议的转换策略有效地减轻了水下运河的退化.
- 这种方法为水下物联网提供了可行的解决方案.
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