Dynamic Joint PHY-MAC Waveform Design for IoT Connectivity

Dynamic Joint PHY-MAC Waveform Design for IoT Connectivity
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用于物联网连接的动态联合 PHY-MAC 波形设计

DOI:
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发表时间:
2019
期刊:
IEEE International Conference on Acoustics, Speech, and Signal Processing
影响因子:
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通讯作者:
D. Pados
D. Pados
中科院分区:
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文献类型:
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作者:
Konstantinos Tountas;G. Sklivanitis;D. Pados

文献摘要

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我们设想物联网(IoT)连接设备的密集网络部署,这些设备将数据报告给公共基站(BS)。这些设备利用基本整形脉冲的重复,占据设备可访问频谱的整个连续谱。我们提出了一个最佳的算法,自适应地设计稀疏的波形,以及放置的能量,最大化的信号与干扰加噪声比(SINR)在输出端的最大SINR线性滤波器在BS。此外,我们提出了一个计算效率次优波形设计算法相同的问题。仿真研究表明,所提出的波形设计达到上级的预检测SINR性能比传统的二进制,四进制,稀疏二进制/四进制波形设计,从而提供了一个有前途的PHY MAC方法,以保持在过载的网络设置的无线连接。
We envision dense network deployments of Internet-of-Things (IoT) connected devices that report data to a common base station (BS). The devices utilize repeats of a basic shaping pulse occupying the entire continuum of the device-accessible spectrum. We propose an optimal algorithm to adaptively design sparse waveforms with well-placed energy that maximize the signal-to-interference-plus-noise ratio (SINR) at the output of the maximum-SINR linear filter at the BS. Additionally, we propose a computationally efficient suboptimal waveform design algorithm for the same problem. Simulation studies show that the proposed waveform designs attain superior pre-detection SINR performance than conventional binary, quaternary, and sparse-binary/quaternary waveform designs, thus offering a promising PHY-MAC approach to maintain wireless connectivity in overloaded network setups.