Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels
This paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals. Compared with terrestrial wireless counterparts, the wake-up signal detection design for UA...
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doaj-a0743bb4ce184c90813fb8f5b0bbd0282021-03-29T23:32:46ZengIEEEIEEE Access2169-35362019-01-017938069381910.1109/ACCESS.2019.29265318754667Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic ChannelsDeqing Wang0Haiyu Li1Yongjun Xie2Xiaoyi Hu3Liqun Fu4https://orcid.org/0000-0002-5234-9429Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education, Xiamen, ChinaKey Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education, Xiamen, ChinaKey Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education, Xiamen, ChinaKey Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education, Xiamen, ChinaKey Laboratory of Underwater Acoustic Communication and Marine Information Technology, Xiamen University, Ministry of Education, Xiamen, ChinaThis paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals. Compared with terrestrial wireless counterparts, the wake-up signal detection design for UAC terminals is challenged by the severe underwater acoustic channels, which is characterized as doubly selective fading and low signal-to-noise ratio (SNR). This paper proposes a wake-up signal detection approach called channel-adaptive detection and location-assisted joint decision (ChAD-LaJD), for UAC terminals. ChAD-LaJD applies a group of linear frequency modulation (LFM) signals as a wake-up signal. In order to increase the detection probability while keeping a low false alarm rate, ChAD-LaJD consists of two procedures: channel-adaptive detection (ChAD) and location-assisted joint decision (LaJD). Besides a pre-determined threshold, ChAD procedure defines two special parameters which reflect instantaneous channel states to detect wake-up signals adaptively. LaJD procedure further exploits the location relationships of LFM signals detected by ChAD to achieve a joint decision. The simulations and field experiments are conducted to evaluate the performance of ChAD-LaJD. The results show that ChAD-LaJD outperforms the conventional methods that consider a fixed threshold (FixTh) and/or constant false alarm rate (CFAR).https://ieeexplore.ieee.org/document/8754667/Underwater acoustic channelswake-uplinear frequency modulationchannel-adaptive |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Deqing Wang Haiyu Li Yongjun Xie Xiaoyi Hu Liqun Fu |
spellingShingle |
Deqing Wang Haiyu Li Yongjun Xie Xiaoyi Hu Liqun Fu Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels IEEE Access Underwater acoustic channels wake-up linear frequency modulation channel-adaptive |
author_facet |
Deqing Wang Haiyu Li Yongjun Xie Xiaoyi Hu Liqun Fu |
author_sort |
Deqing Wang |
title |
Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels |
title_short |
Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels |
title_full |
Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels |
title_fullStr |
Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels |
title_full_unstemmed |
Channel-Adaptive Location-Assisted Wake-up Signal Detection Approach Based on LFM Over Underwater Acoustic Channels |
title_sort |
channel-adaptive location-assisted wake-up signal detection approach based on lfm over underwater acoustic channels |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2019-01-01 |
description |
This paper focuses on the wake-up signal detection design for underwater acoustic communication (UAC) terminals. A wake-up signal detection unit can considerably reduce the power consumption of the terminals. Compared with terrestrial wireless counterparts, the wake-up signal detection design for UAC terminals is challenged by the severe underwater acoustic channels, which is characterized as doubly selective fading and low signal-to-noise ratio (SNR). This paper proposes a wake-up signal detection approach called channel-adaptive detection and location-assisted joint decision (ChAD-LaJD), for UAC terminals. ChAD-LaJD applies a group of linear frequency modulation (LFM) signals as a wake-up signal. In order to increase the detection probability while keeping a low false alarm rate, ChAD-LaJD consists of two procedures: channel-adaptive detection (ChAD) and location-assisted joint decision (LaJD). Besides a pre-determined threshold, ChAD procedure defines two special parameters which reflect instantaneous channel states to detect wake-up signals adaptively. LaJD procedure further exploits the location relationships of LFM signals detected by ChAD to achieve a joint decision. The simulations and field experiments are conducted to evaluate the performance of ChAD-LaJD. The results show that ChAD-LaJD outperforms the conventional methods that consider a fixed threshold (FixTh) and/or constant false alarm rate (CFAR). |
topic |
Underwater acoustic channels wake-up linear frequency modulation channel-adaptive |
url |
https://ieeexplore.ieee.org/document/8754667/ |
work_keys_str_mv |
AT deqingwang channeladaptivelocationassistedwakeupsignaldetectionapproachbasedonlfmoverunderwateracousticchannels AT haiyuli channeladaptivelocationassistedwakeupsignaldetectionapproachbasedonlfmoverunderwateracousticchannels AT yongjunxie channeladaptivelocationassistedwakeupsignaldetectionapproachbasedonlfmoverunderwateracousticchannels AT xiaoyihu channeladaptivelocationassistedwakeupsignaldetectionapproachbasedonlfmoverunderwateracousticchannels AT liqunfu channeladaptivelocationassistedwakeupsignaldetectionapproachbasedonlfmoverunderwateracousticchannels |
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1724189336612634624 |