使用 DPSK 调制对指向错误下的透皮光学无线通信性能的影响

Yazeed Suleiman Al-Rbeihat, Omar M. Hasan
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引用次数: 0

摘要

本文从平均信噪比(SNR)、中断概率(OP)、中断率(OR)和平均啮合容量(AEC)等方面探讨了收发器之间的不对准(称为指向误差(PE))对透皮光无线(TOW)技术性能的影响。这项研究的灵感来自差分相移键控(DPSK)在提高自由空间光通信(FSO)链路可靠性方面的有效性。此外,还考虑到指向误差的影响,对这种增强效果进行了研究和分析。本文特别提出了一种数学分析方法,考虑了信道的某些特性、机身内部的限制、收发器之间的指向误差(PE)以及光学装置的其他特定方面。结果表明,PE 对 TOW 链路的可靠性有重大影响,并突出了 DPSK 技术带来的改进,即与开关键控(OOK)调制技术相比,性能提高了 3 分贝。最后,这项研究证明了无线光学技术在 800-1300 nm 波长范围内的医疗领域的实际应用,在 1100 nm 波长附近观察到了最佳性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Impact of Using DPSK Modulation on the Performance of Transdermal Optical Wireless Communications under Pointing Errors
The current paper explores the impact of misalignment between transceivers (referred to as pointing error (PE)) on the performance of transdermal optical wireless (TOW) technology, as indicated by average signal-to-noise ratio (SNR), outage probability (OP), outage rate (OR), and average ergodic capacity (AEC). This study was inspired by the effectiveness of differential phase shift keying (DPSK) in enhancing the reliability of the link in free-space optical communications (FSO). Furthermore, this enhancement was studied and analyzed in consideration of the impact of pointing errors. In particular, this paper presents a mathematical analysis that considers certain characteristics of the channel, limitations within the body, the pointing errors (PEs) between the transceivers, and other specific aspects of the optical unit. The results demonstrate the significant impact of PEs on the reliability of the TOW link and highlight the improvement provided by the DPSK technique. i.e., 3 dB better performance compared to the on-off keying (OOK) modulation technique. Finally, this research demonstrates the practical application of wireless optical technology in the medical field within the wavelength range of 800–1300 nm, with optimal performance observed around 1100 nm.
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