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首页> 外文期刊>Nano communication networks >Simultaneous wireless information and power transfer for AF relaying nanonetworks in the Terahertz Band
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Simultaneous wireless information and power transfer for AF relaying nanonetworks in the Terahertz Band

机译：在太赫兹频段内的AF中继纳米网络同时进行无线信息和功率传输

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AbstractA nanonetwork is comprised of nanoscale sensors and communicating devices facilitating communication at the nanoscale, which is a promising technology for application in health applications such as intra-body health monitoring and drug delivery. However, the communication performance within a nanonetwork is substantially limited by the energy loss as the Electromagnetic (EM) wave propagates along the channel. Energy harvesting for nanosensor networks can provide a way to overcome the energy bottleneck without considering the lifetime of batteries. Moreover, relaying protocols for nanoscale communications have been proposed to improve the communication performance and extend the transmission distances among nanosensors within nanonetworks. The combination of energy harvesting and a relaying protocol provides an emerging solution not only to overcome the aforementioned energy issues but also enhance the system performance. Therefore, in this paper, simultaneous wireless information and power transfer nanonetworks in the Terahertz (THz) Band (0.1-10 THz) is proposed. An amplify and forward (AF) relaying nanonetwork in this band is investigated, where the relay harvests energy from the received THz signal which is then consumed to forward the information to the destination. Performance based on both time-switching and power-splitting protocols is analyzed. The numerical results show the optimal power-splitting ratio and time switching ratio that achieves the maximum throughput at the destination as well as the impact of transmission distance on system performance. It is seen that the power-splitting protocol gives greater throughput than that of the time-switching protocol.
机译： 摘要 一个纳米网络由纳米级传感器和促进纳米级通信的通信设备组成，这是一种有前途的技术，可用于健康应用，例如体内健康监测和药物交货。但是，随着电磁（EM）波沿通道传播，纳米网络内的通信性能基本上受到能量损耗的限制。纳米传感器网络的能量收集可以提供一种克服能量瓶颈而无需考虑电池寿命的方法。此外，已经提出了用于纳米级通信的中继协议以提高通信性能并扩展纳米网络内的纳米传感器之间的传输距离。能量收集和中继协议的结合提供了一种新兴的解决方案，不仅可以解决上述能源问题，而且可以提高系统性能。因此，在本文中，提出了同时在太赫兹（THz）频带（0.1-10 THz）中进行无线信息和功率传输的纳米网络。研究了该频带中的放大转发（AF）中继纳米网络，其中中继从接收的THz信号中收集能量，然后将其消耗以将信息转发到目的地。分析了基于时间切换和功率分割协议的性能。数值结果表明，最佳的功率分配比和时间切换比可实现目的地的最大吞吐量，以及传输距离对系统性能的影响。可以看出，功率分割协议的吞吐量比时间切换协议的吞吐量大。

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