DeepWiFi: Cognitive WiFi with Deep Learning
DeepWiFi: Cognitive WiFi with Deep Learning
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DeepWiFi：支持深度学习的认知WiFi
DOI：
10.1109/tmc.2019.2949815
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发表时间：
2021-02-01
影响因子：
7.9
通讯作者：
Sagduyu, Yalin E.
中科院分区：
文献类型：
--
作者：
Davaslioglu, Kemal;Soltani, Sohraab;Sagduyu, Yalin E.
我们提出了DeepWiFi协议，该协议通过深度学习强化了基线WiFi（IEEE 802.11ac），并通过减轻网络外干扰来维持高吞吐量。DeepWiFi可与基线WiFi互操作，并建立在现有WiFi的PHY收发器链上，而无需更改MAC帧格式。用户运行DeepWiFi用于：i）RF前端处理; ii）频谱感测和信号分类; iii）信号认证; iv）信道选择和接入; v）功率控制; vi）调制和编码方案（MCS）适配;以及vii）路由。DeepWiFi减轻了概率、基于感知和自适应干扰的影响。RF前端处理应用基于深度学习的自动编码器来提取频谱代表性特征。然后训练深度神经网络，将波形可靠地分类为空闲、WiFi或干扰。利用信道标签，用户可以有效地访问空闲或堵塞的信道，同时避免干扰合法的WiFi传输（通过基于机器学习的RF指纹识别进行认证），从而提高吞吐量。用户优化其发射功率以降低拦截/检测概率，并优化其MCS以最大化背压算法用于路由的链路速率。在嵌入式平台实现的支持下，与基线WiFi和另一种抗干扰协议相比，DeepWiFi提供了主要的吞吐量增益，特别是当信道可能被干扰并且信号与干扰加噪声比较低时。
We present the DeepWiFi protocol, which hardens the baseline WiFi (IEEE 802.11ac) with deep learning and sustains high throughput by mitigating out-of-network interference. DeepWiFi is interoperable with baseline WiFi and builds upon the existing WiFi's PHY transceiver chain without changing the MAC frame format. Users run DeepWiFi for: i) RF front end processing; ii) spectrum sensing and signal classification; iii) signal authentication; iv) channel selection and access; v) power control; vi) modulation and coding scheme (MCS) adaptation; and vii) routing. DeepWiFi mitigates the effects of probabilistic, sensing-based, and adaptive jammers. RF front end processing applies a deep learning-based autoencoder to extract spectrum-representative features. Then a deep neural network is trained to classify waveforms reliably as idle, WiFi, or jammer. Utilizing channel labels, users effectively access idle or jammed channels, while avoiding interference with legitimate WiFi transmissions (authenticated by machine learning-based RF fingerprinting) resulting in higher throughput. Users optimize their transmit power for low probability of intercept/detection and their MCS to maximize link rates used by backpressure algorithm for routing. Supported by embedded platform implementation, DeepWiFi provides major throughput gains compared to baseline WiFi and another jamming-resistant protocol, especially when channels are likely to be jammed and the signal-to-interference-plus-noise-ratio is low.