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首页> 外文期刊>Wireless Communications Letters, IEEE >Secrecy Rate Analysis of Open-Loop Analog Collaborative Beamforming Under Position Estimation Error of Virtual Antenna Array
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Secrecy Rate Analysis of Open-Loop Analog Collaborative Beamforming Under Position Estimation Error of Virtual Antenna Array

机译:虚拟天线阵列位置估计误差下开环模拟协同波束形成的保密率分析

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摘要

As the importance to guarantee confidentiality against security attacks by eavesdroppers has attracted significant attention, there has been much effort to enhance the security performance through cooperative beamforming (CB) in the context of physical layer security (PLS). In particular, analog CB (ACB), which requires vastly lower overhead compared to digital CB, can provide significantly higher secrecy rate compared to the PLS methods with co-located array. In this letter, we focus on ACB with open-loop architecture that requires low complexity, and consider phase offsets across multiple virtual antenna array (VAA) elements for ACB, which are caused by position estimation error of VAA. We investigate the impact of the phase offsets in ACB in terms of the secrecy throughput loss.
机译:由于保护窃听者免受安全攻击的机密性的重要性已引起广泛的关注,因此在物理层安全性(PLS)的背景下,人们已经进行了很多努力来通过协作波束成形(CB)来增强安全性能。特别是,与数字CB相比,其开销要低得多的模拟CB(ACB)与具有共置阵列的PLS方法相比,可以提供更高的保密率。在这封信中,我们关注具有低复杂度的开环架构ACB,并考虑ACA的多个虚拟天线阵列(VAA)元件之间的相位偏移,这是由VAA的位置估计误差引起的。我们根据保密吞吐量损失调查了ACB中相移的影响。

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