In this study, we propose a non-coherent over-the-air computation scheme to calculate the majority vote (MV) reliably in fading channels. The proposed approach relies on modulating the amplitude of the elements of complementary sequences based on the sign of the parameters to be aggregated. Since it does not use channel state information at the nodes, it is compatible with time-varying channels. To demonstrate the efficacy of our method, we employ it in a scenario where an unmanned aerial vehicle is guided by distributed sensors, relying on the MV computed using our proposed scheme. We show that the proposed scheme notably reduces the computation error rate with a longer sequence length in fading channels while maintaining the peak-to-mean-envelope power ratio of the transmitted orthogonal frequency division multiplexing signals to be less than or equal to 3 dB.

翻译：本研究提出一种非相干空中计算方案，用于在衰落信道中可靠地计算多数投票。该方法基于待聚合参数的符号，对互补序列元素的幅度进行调制。由于无需在节点处获取信道状态信息，该方案适用于时变信道。为验证所提方法的有效性，我们在一架由分布式传感器引导的无人机场景中进行了验证，该无人机依赖于基于我们方案计算出的多数投票进行导航。研究表明，所提方案在保持正交频分复用传输信号的峰均包络功率比不超过3dB的同时，通过增加序列长度可显著降低衰落信道中的计算错误率。