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Ambient backscatter communication (AmBC) enables ambient Internet of Things (AIoT) devices to achieve ultra-low-power, low-cost, and massive connectivity. Most existing AmBC studies assume ideal synchronization between the backscatter…

Information Theory · Computer Science 2025-10-06 Yuxin Li , Guangyue Lu , Yinghui Ye , Zehui Xiong , Liqin Shi

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

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) 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 is a newly emerged paradigm, which utilizes the ambient radio frequency (RF) signal as the carrier to reduce the system battery requirement, and is regarded as a promising solution for enabling large scale…

Signal Processing · Electrical Eng. & Systems 2018-04-11 Qin Tao , Caijun Zhong , Hai Lin , Zhaoyang Zhang

The success of Internet-of-Things (IoT) paradigm relies on, among other things, developing energy-efficient communication techniques that can enable information exchange among billions of battery-operated IoT devices. With its technological…

Information Theory · Computer Science 2018-04-26 J. Kartheek Devineni , Harpreet S. Dhillon

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

We study a novel communication mechanism, ambient backscatter, that utilizes radio frequency (RF) signals transmitted from an ambient source as both energy supply and information carrier to enable communications between low-power devices.…

Information Theory · Computer Science 2016-12-26 Jing Qian , Feifei Gao , Gongpu Wang , Shi Jin , Hongbo Zhu

Ambient backscatter communication (AmBC) enables battery-free connectivity by letting passive tags modulate existing RF signals, but reliable detection of multiple tags is challenging due to strong direct link interference, very weak…

Signal Processing · Electrical Eng. & Systems 2025-12-22 Talha Akyildiz , Hessam Mahdavifar

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

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 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) 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

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

Ambient backscatter communication (AmBC) enables radio-frequency (RF) powered backscatter devices (BDs) (e.g., sensors, tags) to modulate their information bits over ambient RF carriers in an over-the-air manner. This technology also called…

Information Theory · Computer Science 2017-04-11 Gang Yang , Ying-Chang Liang , Rui Zhang , Yiyang Pei

This paper focuses on the non-coherent detection in ambient backscatter communication, which is highly appealing for systems where the trade-off between signaling overhead and the actual data transmission is very critical. Modeling the…

Information Theory · Computer Science 2021-04-28 J. Kartheek Devineni , Harpreet S. Dhillon

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

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

Low-power ambient backscatter communication (AmBC) relying on radio-frequency (RF) energy harvesting is an energy-efficient solution for batteryless Internet of things (IoT). However, ambient backscatter signals are severely faded by dyadic…

Information Theory · Computer Science 2018-06-11 Tae Yeong Kim , Dong In Kim

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
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