Abstract This paper presents a novel multi-patient biomedical data transmission scheme using coded polarization shift keying (CPoLSK) modulation in a visible light communication (VLC) link. Considering the importance of accurate and reliable multiple patient data transmission in an interference-prone indoor hospital environment, the proposed CPoLSK having inherent properties of the code shift keying (CSK) presents a salient feature of interference mitigation. In the CSK, the codes are generated from the circular phase shift of a single maximal length pseudorandom (PRN) code that is capable of mitigating the interference effect. Each circular shifted code is mapped to each patient biomedical data and then transmitted using the polarization shift keying (PoLSK) modulation. In the proposed study, two orthogonal states of polarization at the same frequency for the two information bits (0 and 1) are used. The system design and operation mechanism of the proposed CPoLSK scheme are discussed. Analytical expressions are also derived and validated using simulations. The proposed scheme exhibits interference mitigation capability and high reliability, compared with existing multiple patient data transmission schemes.

中文翻译：

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使用 CPoLSK 调制技术的新型多患者生物医学数据传输

摘要 本文提出了一种在可见光通信 (VLC) 链路中使用编码偏振移键控 (CPoLSK) 调制的新型多患者生物医学数据传输方案。考虑到在易受干扰的室内医院环境中准确可靠地传输多位患者数据的重要性，所提出的具有码移键控 (CSK) 固有特性的 CPoLSK 具有显着的抗干扰特性。在 CSK 中，代码是从能够减轻干扰影响的单个最大长度伪随机 (PRN) 代码的循环相移生成的。每个循环移位代码都映射到每个患者的生物医学数据，然后使用偏振移位键控 (PoLSK) 调制进行传输。在拟议的研究中，对于两个信息位（0 和 1），使用相同频率的两个正交极化状态。讨论了所提出的CPoLSK 方案的系统设计和运行机制。还可以使用模拟来导出和验证分析表达式。与现有的多患者数据传输方案相比，所提出的方案具有干扰抑制能力和高可靠性。