在流环境中的多用户配对UWOC-NOMA系统的联合SIC和功率分配
概括
本研究介绍了使用非对角多重接入的水下光通信系统的新型优化方案. 提出的方法有效地降低了系统中断的可能性,并且即使有更多的用户,也很快地趋同.
科学领域:
- 水下无线光通信 (UWOC) 是指水下无线光通信.
- 非对角的多重访问 (NOMA)
背景情况:
- 水下无线光通信系统面临多用户干扰的挑战.
- 非对角多重接入 (NOMA) 为提高UWOC的光谱效率提供了一个潜在的解决方案.
研究的目的:
- 为具有多用户配对的UWOC-NOMA系统提出和评估一个楼梯联合优化方案 (SJOS).
- 降低平均中断概率,并确保这些系统的快速融合.
主要方法:
- 一个楼梯联合优化方案 (SJOS) 使用交替对角干扰取消和功率分配.
- 定向代以优化干扰取消和功率分配子问题.
- 一个单向排序算法和结合梯度方法用于解决子问题.
主要成果:
- 拟议的SJOS有效地降低了UWOC-NOMA系统的平均中断概率.
- 该算法表现出快速收,即使对接用户数量增加.
- 成功优化了干扰取消和功率分配.
结论:
- 在多用户的UWOC-NOMA系统中,SJOS提供了一种有效的解决方案来管理干扰和功率.
- 拟议的优化技术提高了系统性能和可扩展性.
- 这种方法对未来的水下通信网络有希望.
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