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The era of ubiquitous, affordable wireless connectivity has opened doors to countless practical applications. In this context, ambient backscatter communication (AmBC) stands out, utilizing passive tags to establish connections with readers…

Information Theory · Computer Science 2023-11-16 S. Zargari , A. Hakimi , C. Tellambura , A. Maaref

Tag signal detection is one of the key tasks in ambient backscatter communication (AmBC) systems. However, obtaining perfect channel state information (CSI) is challenging and costly, which makes AmBC systems suffer from a high bit error…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Chang Liu , Zhiqiang Wei , Derrick Wing Kwan Ng , Jinhong Yuan , Ying-Chang Liang

Multiple-antenna backscatter is emerging as a promising approach to offer high communication performance for the data-intensive applications of ambient backscatter communications (AmBC). Although much has been understood about…

Signal Processing · Electrical Eng. & Systems 2019-12-24 Zhiang Niu , Wei Wang , Tao Jiang

Ambient backscatter communication (AmBC) has emerged as a highly attractive paradigm for energy-efficient communication. Full-duplex multi-tag AmBC systems provide the scalability and efficient spectrum utilization essential for next…

Signal Processing · Electrical Eng. & Systems 2025-12-16 Saeed Abdallah , Mahmoud A. Albreem , Bassel Al Homssi , Mohamed Saad , Abdulmalik Alwarafy

Existing tag signal detection algorithms inevitably suffer from a high bit error rate (BER) due to the difficulties in estimating the channel state information (CSI). To eliminate the requirement of channel estimation and to improve the…

Signal Processing · Electrical Eng. & Systems 2020-11-12 Chang Liu , Xuemeng Liu , Zhiqiang Wei , Derrick Wing Kwan Ng , Jinhong Yuan , Ying-Chang Liang

Ambient backscatter communication (AmBC) leverages the existing ambient radio frequency (RF) environment to implement communication with battery-free devices. The key challenge in the development of AmBC is the very weak RF signals…

Signal Processing · Electrical Eng. & Systems 2021-08-24 Wenjing Liu , Shanpu Shen , Danny H. K. Tsang , Ross Murch

Ambient backscatter communication (AmBC) offers low-cost and low-power connectivity for Internet of Things (IoT), where a backscatter tag (BT) modulates incident signals transmitted by an ambient radio frequency (RF) source and reflects…

Information Theory · Computer Science 2025-11-12 Yuxin Li , Guangyue Lu , Yinghui Ye , Liqin Shi , Daniel Benevides da Costa

Ambient backscatter communications (AmBC), where a backscatter transmitter (BT) modulates and reflects ambient signals to a backscatter receiver (BR), have been deemed a low-power communication technology for the Internet of Things.…

Information Theory · Computer Science 2025-12-18 Yinghui Ye , Ying Li , Xiaoli Chu , Gan Zheng , Sumei Sun

Ambient backscatter communication (AmBC) leverages the existing ambient radio frequency (RF) environment to implement communication with battery-free devices. One critical challenge of AmBC systems is signal recovery because the transmitted…

Signal Processing · Electrical Eng. & Systems 2022-10-19 Wenjing Liu , Shanpu Shen , Danny H. K. Tsang , Ranjan K. Mallik , Ross Murch

Ambient Backscatter Communication (AmBC) is an emerging communication technology that can enable green Internet-of-Things deployments. The widespread acceptance of this paradigm is limited by low Signal-to-Interference-Plus-Noise Ratio…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Xiyu Wang , Hüseyin Yiğitler , Ruifeng Duan , Estifanos Yohannes Menta , Riku Jäntti

Internet-of-Things (IoT) is rapidly growing in wireless technology, aiming to connect vast numbers of devices to gather and distribute vital information. Despite individual devices having low energy consumption, the cumulative demand…

Information Theory · Computer Science 2023-12-08 Shayan Zargari , Azar Hakimi , Fatemeh Rezaei , Chintha Tellambura , Amine Maaref

In ambient backscatter communication (AmBC) systems, passive tags connect to a reader by reflecting an ambient radio frequency (RF) signal. However, the reader may not know the channel states and RF source parameters. The traditional energy…

Information Theory · Computer Science 2024-06-13 S. Zargari , C. Tellambura , A. Maaref

In ambient backscatter communication (AmBC), strong direct interference from the ambient source poses a major challenge to reliable symbol detection. Although previous studies have shown that employing a low-noise amplifier (LNA) in…

Information Theory · Computer Science 2026-03-11 Xinyi Wang , Yuxin Li , Yinghui Ye , Gongpu Wang , Guangyue Lu

Ambient backscatter communication (AmBC) is becoming increasingly popular for enabling green communication amidst the continual development of the Internet-of-things paradigm. Efforts have been put into backscatter signal detection as the…

Signal Processing · Electrical Eng. & Systems 2020-08-25 Xiyu Wang , Hüseyin Yiğitler , Riku Jäntti

Ambient Internet of Things networks use low-cost, low-power backscatter tags in various industry applications. By exploiting those tags, we introduce the integrated sensing and backscatter communication (ISABC) system, featuring multiple…

Information Theory · Computer Science 2024-05-01 S. Zargari , D. Galappaththige , C. Tellambura

Ambient backscatter communication (AmBC) enables a passive backscatter device to transmit information to a reader using ambient RF signals, and has emerged as a promising solution to green Internet-of-Things (IoT). Conventional AmBC…

Information Theory · Computer Science 2018-01-08 Gang Yang , Qianqian Zhang , Ying-Chang Liang

We consider an ambient backscatter communication (AmBC) system aided by an intelligent reflecting surface (IRS). The optimization of the IRS to assist AmBC is extremely difficult when there is no prior channel knowledge, for which no design…

Information Theory · Computer Science 2021-07-27 Xiaolun Jia , Xiangyun Zhou

Ambient Internet of Things (AIoT), recently standardized by the 3rd Generation Partnership Project (3GPP), demands a low-power wide-area communication solution that operates several orders of magnitude below the power requirements of…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Jingyi Liao , Tianshu Zhang , Kalle Ruttik , Riku Jäntti , Dinh-Thuy Phan-Huy

In this work, we consider a backscatter communication system wherein multiple asynchronous sources (tags) exploit the reverberation generated by a nearby radar transmitter as an ambient carrier to deliver a message to a common destination…

Signal Processing · Electrical Eng. & Systems 2024-12-30 Luca Venturino , Emanuele Grossi , Jeremy Johnston , Marco Lops , Xiaodong Wang

Ambient backscatter communications (AmBC) are a promising technology for addressing the energy consumption challenge in wireless communications through the reflection or absorption of surrounding radio frequency (RF) signals. However, it…

Signal Processing · Electrical Eng. & Systems 2024-08-19 Shuaijun Ma , Peng Wei , Sa Xiao , Jianquan Wang , Wanbin Tang , Wei Xiang
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