Interference Steering to Manage Interference in IoT
Interference Steering to Manage Interference in IoT
复制标题
用于管理物联网干扰的干扰引导
DOI：
10.1109/jiot.2019.2939255
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发表时间：
2019-12
影响因子：
10.6
通讯作者：
Jia Liu
中科院分区：
文献类型：
--
作者：
Zhao Li;Jiamin Ding;Xiaoqin Dai;Kang G. Shin;Jia Liu
物联网(IoT)是一种新的范式，涉及数千台设备和家用电器的互联。由于适用于无线电磁传输的频谱稀缺，许多通信系统和设备彼此接近，甚至频谱重叠，从而导致复杂的干扰情况。因此，物联网中的干扰值得深入调查，应该得到很好的解决。在干扰发送器或被干扰发送器/接收器处已经单独或协作地提出了许多干扰管理(IM)建议。此外，现有的IM方案主要依赖于使用信道状态信息(CSI)。然而，在一些通信场景中，没有调整干扰器的选项，并且在下行传输的情况下，被干扰的接收器总是很难甚至不可能获得IM所需的信息。基于上述观察，我们首先提出了一种新的IM技术，称为干扰导向(IS)。通过利用相对于干扰信号的CSI和干扰信号中携带的数据，IS生成信号以修改原始干扰的空间特征，使得在被干扰接收器处引导的干扰与其预期信号是正交的。然后，我们将其应用于基于无线局域网(WLAN)的物联网，其中相同的频段被具有重叠区域的相邻基本服务集(BSS)重用。有了IS，附近的多个接入点(AP)可以同时在同一信道上向它们的移动站(STA)传输数据，从而增强了频谱重用。我们的深入仿真结果表明，与现有的IM方案相比，IS显著改善了网络的SE。
Internet of Things (IoT) is a new paradigm that involves the interconnection of thousands of devices and home appliances. Due to the scarcity of the spectrum suitable for wireless electromagnetic transmission, many communication systems and devices are close to each other, or even overlapping in spectrum, thus incurring complicated interference situations. Therefore, interference in IoT is worthy of thorough investigation and should be well addressed. There have been numerous interference management (IM) proposals at the interfering transmitter or the interfered transmitter/receiver separately or cooperatively. Moreover, the existing IM schemes rely mainly on the use of channel state information (CSI). However, in some communication scenarios, the option to adjust the interferer is not available, and, in the case of downlink transmission, it is always difficult or even impossible for the interfered receiver to acquire necessary information for IM. Based on the above observations, we first propose a novel IM technique, called interference steering (IS). By making use of both CSI with respect to and data carried in the interfering signal, IS generates a signal to modify the spatial feature of the original interference, so that the steered interference at the interfered receiver is orthogonal to its intended signal. We then apply IS to a wireless local area network (WLAN)-based IoT in which the same frequency band is reused by adjacent basic service sets (BSSs) with overlapping areas. With IS, multiple nearby access points (APs) could simultaneously transmit data on the same channel to their mobile stations (STAs), thus enhancing spectrum reuse. Our in-depth simulation results show that IS significantly improves network SE over existing IM schemes.
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DOI：
10.1109/allerton.2008.4797595
发表时间：
2008-12
期刊：
2008 46th Annual Allerton Conference on Communication, Control, and Computing
影响因子：
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作者：
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发表时间：
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期刊：
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影响因子：
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影响因子：
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作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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DOI：
10.1145/1859995.1859999
发表时间：
2010-09
期刊：
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影响因子：
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作者：
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通讯作者：
Souvik Sen;Romit Roy Choudhury;Srihari Nelakuditi