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SWIPT-Enabled D2D Communication Underlaying NOMA-Based Cellular Networks in Imperfect CSI
IEEE Transactions on Vehicular Technology ( IF 6.8 ) Pub Date : 2021-01-05 , DOI: 10.1109/tvt.2021.3049185
Ishan Budhiraja , Neeraj Kumar , Sudhanshu Tyagi , Sudeep Tanwar , Mohsen Guizani

Device-to-Device (D2D) communication is an emerging paradigm which enhances the coverage, capacity, and spectral efficiency of the network using cooperative communication in an underlay of cellular networks. In spite of these advantages, it suffers from large bandwidth and energy loss due to usage of half-duplex relaying and limited energy storage devices. To solve these issues, we integrate the full-duplex (FD) relaying and time splitting simultaneous wireless information and power transfer (SWIPT) technique at the D2D transmitters (DDTs). Moreover, to support the ubiquitous connectivity and reduce the latency, non-orthogonal multiple access is used at the base station. The SWIPT-FD-based DDTs and SWIPT-based cell user equipment (CUE) harvest the energy from the base station, after that the DDTs and CUEs decode the desired signal from the multiplexed signal using successive interference cancellation technique, and forward the desired signal to the D2D user equipment (DUE) to improve their QoS. In this paper, ergodic capacity at the DDTs and DUEs & closed-form expressions of the outage probabilities are derived with imperfect CSI. The results demonstrate that the proposed scheme achieves better performance as compared to that of the existing SWIPT-FD-OMA based scheme.

中文翻译:

不完善的CSI中支持基于SWIPT的D2D通信支持基于NOMA的蜂窝网络

设备到设备(D2D)通信是一种新兴的范例,它通过在蜂窝网络底层中使用协作通信来增强网络的覆盖范围,容量和频谱效率。尽管具有这些优点,但是由于使用半双工中继和有限的能量存储设备,它仍遭受较大的带宽和能量损失。为了解决这些问题,我们在D2D发射器(DDT)上集成了全双工(FD)中继和时分同步无线信息与功率传输(SWIPT)技术。此外,为了支持无处不在的连接并减少等待时间,在基站使用了非正交多址访问。基于SWIPT-FD的DDT和基于SWIPT的小区用户设备(CUE)从基站获取能量,之后,DDT和CUE使用连续干扰消除技术从多路复用信号中解码所需信号,并将所需信号转发到D2D用户设备(DUE)以改善其QoS。本文利用不完善的CSI推导了DDT和DUE的遍历容量以及中断概率的闭式表达式。结果表明,与现有的基于SWIPT-FD-OMA的方案相比,该方案具有更好的性能。
更新日期:2021-02-16
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