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Membrane lipids such as phosphatidylinositol (PI) are precursors for several membrane-bound and soluble second messengers. Specific kinases phosphorylate PI and produce phosphorylated inositol phospholipids. One such inositol phospholipids are the  phosphatidylinositol-4,5 bisphosphate [PI(4,5)P2], present in the inner half of the lipid bilayer. Upon ligand binding, GPCR stimulates Gq proteins to turn on phospholipase Cꞵ. Activated phospholipase Cꞵ cleaves PI(4,5)P2 and...
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在DAF的支持下,ISAC用于多节点V2V网络的空间散射调制.

Yajun Fan1,2, Jiaqi Wu2, Yabo Guo1,2

  • 1The Key Laboratory of Grain Information Processing and Control (Henan University of Technology), Ministry of Education, Zhengzhou 450001, China.

Sensors (Basel, Switzerland)
|October 16, 2025
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的空间散射调制,用于多节点车辆网络中的综合传感和通信 (ISAC). 新方案提高了能源效率和通信可靠性,优于现有方法.

关键词:
检测-放大-并向前传输.能源效率是指能效的能源效率.集成传感和通信系统.多节点V2V网络的V2V网络.空间散射调制的空间分散.

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科学领域:

  • 智能运输系统 智能运输系统
  • 无线通信无线通信
  • 信号处理 信号处理

背景情况:

  • 综合传感和通信 (ISAC) 是智能运输的关键.
  • 现有的基于索引调制 (IM) 的ISAC方案在多跳车到车辆 (V2V) 网络中存在局限性,包括能源消耗和噪声.
  • 在当前的IM-ISAC系统中,毫米波频道的空间复杂化潜力往往被忽视.

研究的目的:

  • 为多节点V2V网络提出一种基于空间散射调制的ISAC (ISAC-SSM) 方案.
  • 在复杂的车辆环境中应对能源消耗和噪声积累的挑战.
  • 为了利用传感信息来改进中继选择和多普勒补偿.

主要方法:

  • 开发了一个基于空间散射调制的ISAC (ISAC-SSM) 方案,用于多节点V2V网络.
  • 采用检测放大和转发 (DAF) 协议来减轻噪声传播.
  • 使用传感器定位和角度数据进行中继选择和多普勒补偿,分别.
  • 衍生闭式比特错误率 (BER) 和切诺夫上限表达式.

主要成果:

  • 与现有替代方案相比, DAF 提出的 ISAC-SSM 方案显示出优越的能源效率 (EE) 和错误性能.
  • 在双跳网络中,相对于传统的空间多重复,最大束形和随机束形,分别实现了1.5 dB,2 dB和4 dB的编码收益.
  • 在多普勒位移下显示出强大的性能,在多普勒位移下误差降解小于1.5dB,验证了实际应用.

结论:

  • 该DAFISAC-SSM方案有效地提高EE和多节点V2V网络的通信可靠性.
  • 拟议的方案克服了在复杂的车辆环境中基于IM的现有ISAC系统的局限性.
  • 空间散射调制为智能运输中的未来ISAC系统提供了一个有希望的方法.