可重新配置的智能表面辅助N-ary Alamouti
Hongjun Xu1, Narushan Pillay2, Vinoth Babu Kumaravelu3
1School of Engineering, University of KwaZulu-Natal, King George V Ave, Durban, 4001, KwaZulu-Natal, Republic of South Africa.
Scientific reports
|November 3, 2025
概括
本研究介绍了N-ary RIS辅助的Alamouti (N-RIS-Alamouti) 计划,提高了无线通信的频谱效率. 新的N-RIS-Alamouti方案可以在不影响错误性能的情况下增强数据传输.
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:
- 可重新配置的智能表面 (RIS) 正在成为未来无线网络的关键技术.
- 现有的RIS-Alamouti计划为改善无线传输提供了基础.
- 传统的阿拉木图计划是RIS-阿拉木图的基础,使用多个发射和接收天线.
研究的目的:
- 提出一个基于多输入多输出 (MIMO) 的新型方案,称为N-ary RIS辅助阿拉木图计划 (N-RIS-Alamouti).
- 为了提高RIS辅助无线通信的频谱效率.
- 与现有的RIS-Alamouti方案相比,保持或改善错误性能.
主要方法:
- 在N-RIS-Alamouti方案中,使用N-ary相位转换密钥 (NPSK) 符号在四个时间段中传输额外的信息位.
- 它将NPSK符号对作为通道的额外相位组件建成模型.
- 该计划利用MIMO配置和RIS技术.
主要成果:
- N-RIS-Alamouti方案通过在不牺牲可靠性的情况下通过每通道使用额外的比特传输来提高频谱效率.
- 可实现的光谱效率尺度与接收天线的数量.
- 模拟显示128-RIS-Alamouti和256-RIS-Alamouti实现了与RIS-Alamouti相似的BER,通过额外的传输比特 (分别为7和8位).
结论:
- N-RIS-Alamouti方案在无线通信效率方面取得了重大进展.
- 它提供了一种通过提高频谱效率来提高数据速率的方法.
- 该计划的绩效效益随着接收天线数量的增加而增加.
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