论文标题
在环境背散射辅助无线传递中选择模式选择的强盗方法
A Bandit Approach for Mode Selection in Ambient Backscatter-Assisted Wireless-Powered Relaying
论文作者
论文摘要
反向扫描辅助无线驱动的通信将超功率反向散射发射器与能量收集设备相结合。本文研究了混合继电器的传输模式选择问题，该问题通过在主动无线传输和被动环境后散射之间切换来转发数据。它首先提出了混合中继系统模型，并在理论上最佳但实际上不现实的条件下得出了其端到端的成功概率。然后，在不同的环境中，将传输模式选择作为随机的两臂匪徒问题进行配合，在不同的环境中，奖励的分布是非组织的。提出的模型选择方案不认为可以访问任何渠道状态或网络条件，而仅依赖于从过去的传输记录中学习。进行数值分析以验证提出的基于匪徒的模式选择方法。
Backscattering assisted wireless-powered communication combines ultralow-power backscatter transmitters with energy harvesting devices. This paper investigates the transmission mode selection problem of a hybrid relay that forwards data by switching between the active wireless-powered transmission and the passive ambient backscattering. It first presents a hybrid relay system model and derives its end-to-end success probability under theoretically optimal, but practically unrealistic, conditions. The transmission mode selection is then formulated as a stochastic two-armed bandit problem in a varying environment where the distributions of rewards are nonstationary. The proposed model selection scheme does not assume to have access to any channel states or network conditions, but merely relies on learning from past transmission records. Numerical analyses are performed to validate the proposed bandit-based mode selection approach.
