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同效的基于矢量差分分布的近直角空间时间频率编码
Nnamdi Nwanekezie1, Oluyomi Simpson1, Gbenga Owojaiye1
1School of Physics, Engineering and Computer Science (SPECS), University of Hertfordshire, College Lane Campus, Hatfield AL10 9AB, UK.
Sensors (Basel, Switzerland)
|September 9, 2023
概括
本研究介绍了一种用于合作网络的新型差分分布式近直角空间时间频率编码 (DQSTFC) 方案. 这种新方法在不需要通道状态信息的情况下,在移动环境中增强了信号恢复,在具有挑战性的条件下提高了性能.
科学领域:
- 无线通信工程 无线通信工程
- 信息理论是信息理论.
- 信号处理 信号处理
背景情况:
- 合作性宽带网络在高度移动的环境中面临性能恶化.
- 在这些移动场景中,获取通道状态信息 (CSI) 是不切实际的.
- 分布式时空频率编码 (DSTFC) 的现有差异设计通常仅限于特定的中继协议.
研究的目的:
- 提出一个新的系数向量差分布式近直角空间时间频率编码 (DQSTFC) 方案.
- 为了在解码和转发合作网络中实现信号恢复,而不需要在中继器或目的地进行CSI.
- 为了减少频率选择性和时间选择性色环境中的性能退化.
主要方法:
- 为DQSTFC开发了一种新的系数向量差异设计.
- 放松了在时间和频率维度上对恒定通道增益的要求.
- 分析了代码的性能,使用对式错误概率分析来推导设计标准.
主要成果:
- 拟议的DQSTFC方案在各种道条件下显示了改进的性能.
- 该方案有效地减少了在具有挑战性的移动和色环境中的性能退化.
- 为新代码推出了完全多样化的设计标准.
结论:
- 系数向量差异DQSTFC方案为移动环境中的合作宽带网络提供了强大的解决方案.
- 这种方法克服了传统的DSTFC方案的局限性,通过在中继节点实现差分解码.
- 衍生的设计标准有助于优化DQSTFC以提高可靠性和性能.
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