论文标题
硬件障碍对相互合作环境反向散射通信的影响
Impacts of Hardware Impairments on Mutualistic Cooperative Ambient Backscatter Communications
论文作者
论文摘要
在相互合作的环境反向散射通信（AMBC）中，通过调节和反向散射主要信号，同时向主要接收器提供有益的多路径多样性，从而形成了AMBC和AMBC之间的互助关系，从而将其信息发送给所需的接收器。我们注意到，在实用系统中不可避免的硬件障碍（HIS）可能会严重影响主要和AMBC链接的传输速率及其共同性关系，在对互助合作AMBC网络的研究中已被忽略了。在本文中，我们考虑了他的共同性合作AMBC网络，并研究了他对主要链接和AMBC链接的可实现率的影响。特别是，我们从理论上证明，尽管他的每个链接的速率降低了，但AMBC与主要联系之间的互助关系得以维持，即，在没有AMBC链接的情况下，相互合作的AMBC网络中主要链接的速率仍然高。 AMBC和主要链接的闭合率表达式均被得出。提供计算机模拟以验证我们的理论分析。
In mutualistic cooperative ambient backscatter communications (AmBC), Internet-of-Things (IoT) device sends its information to a desired receiver by modulating and backscattering the primary signal, while providing beneficial multipath diversity to the primary receiver in return, thus forming a mutualism relationship between the AmBC and primary links. We note that the hardware impairments (HIs), which are unavoidable in practical systems and may significantly affect the transmission rates of the primary and AmBC links and their mutualism relationships, have been largely ignored in the study of mutualistic cooperative AmBC networks. In this paper, we consider a mutualistic cooperative AmBC network under HIs, and study the impacts of HIs on the achievable rates of the primary link and the AmBC link. In particular, we theoretically prove that although HIs degrades the rate of each link, the mutualism relationship between the AmBC and primary links is maintained, i.e., the rate of the primary link in the mutualistic cooperative AmBC network is still higher than that without the AmBC link. The closed-form rate expressions of both the AmBC and primary links are derived. Computer simulations are provided to validate our theoretical analysis.
