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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 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

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) enables wireless-powered backscatter devices (BDs) to transmit information over ambient radio-frequency (RF) carriers without using an RF transmitter, and thus has emerged as a promising technology…

Information Theory · Computer Science 2018-05-04 Gang Yang , Dongdong Yuan , Ying-Chang Liang

Ambient backscatter communication (AmBC) has been introduced to address communication and power efficiency issues for short-range and low-power Internet-of-Things (IoT) applications. On the other hand, reconfigurable intelligent surface…

Signal Processing · Electrical Eng. & Systems 2020-12-09 Mahyar Nemati , Jie Ding , Jinho Choi

In bi-static Ambient Backscatter Communications (AmBC) systems, the direct path from the ambient source to the receiver can be several orders of magnitude stronger than the scattered path modulated by the AmBC device. Because of the large…

Information Theory · Computer Science 2019-01-23 Ruifeng Duan , Estifanos Menta , Hüseyin Yiğitler , Riku Jäntti , Zhu Han

Recently, ambient backscatter communications has been introduced as a cutting-edge technology which enables smart devices to communicate by utilizing ambient radio frequency (RF) signals without requiring active RF transmission. This…

Networking and Internet Architecture · Computer Science 2017-12-14 Nguyen Van Huynh , Dinh Thai Hoang , Xiao Lu , Dusit Niyato , Ping Wang , Dong In Kim

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

The rapid growth of the Internet of Things (IoT) devices in the sixth-generation (6G) wireless networks raises significant generality and scalability challenges due to energy consumption, deployment complexity, and environmental impact.…

Systems and Control · Electrical Eng. & Systems 2026-03-06 Boxuan Xie , Yifan Zhang , Kalle Koskinen , Alexis A. Dowhuszko , Jiacheng Wang , Ruichen Zhang , Zehui Xiong , Dusit Niyato , Zhu Han , Riku Jäntti

In the present contribution, we propose a novel opportunistic ambient backscatter communication (ABC) framework for radio frequency (RF)-powered cognitive radio (CR) networks. This framework considers opportunistic spectrum sensing…

Information Theory · Computer Science 2019-02-04 Rajalekshmi Kishore , Sanjeev Gurugopinath , Paschalis C. Sofotasios , Sami Muhaidat , Naofal Al-Dhahir

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 backscatter is an intriguing wireless communication paradigm that allows small devices to compute and communicate by using only the power they harvest from radio-frequency (RF) signals in the air. Ambient backscattering devices…

Information Theory · Computer Science 2016-05-17 Donatella Darsena , Giacinto Gelli , Francesco Verde

The 3GPP has recently conducted a study on the Ambient Internet of Things (AIoT), with a particular emphasis on examining backscatter communications as one of the primary techniques under consideration. Previous investigations into Ambient…

Signal Processing · Electrical Eng. & Systems 2024-02-22 Jingyi Liao , Kalle Ruttik , Riku Jantti , Phan-Huy Dinh-Thuy

Ambient backscatter communications (AmBackComs) have been recognized as a spectrum- and energy-efficient technology for Internet of Things, as it allows passive backscatter devices (BDs) to modulate their information into the legacy…

Information Theory · Computer Science 2020-05-15 Yinghui Ye , Liqin Shi , Xiaoli Chu , Guangyue Lu

In this paper, we study backscatter communication (BC) for power-limited devices that are connected to a network for the Internet of Things (IoT), where joint estimation and detection is carried out at a receiver to detect signals from a…

Information Theory · Computer Science 2019-08-21 Jinho Choi

The probability density function (pdf) of the received signal of an ambient backscatter communication system is derived, assuming that on-off keying (OOK) is performed at the tag, and that the ambient radio frequency (RF) signal is white…

Information Theory · Computer Science 2020-10-28 Sudarshan Guruacharya , Xiao Lu , Ekram Hossain

Long Term Evolution (LTE) signal is ubiquitously present in electromagnetic (EM) background environment, which make it an attractive signal source for the ambient backscatter communications (AmBC). In this paper, we propose a system, in…

Signal Processing · Electrical Eng. & Systems 2023-02-01 Jingyi Liao , Xiyu Wang , Kalle Ruttik , Riku Jantti , Phan-Huy Dinh-Thuy

Ambient backscatter communication (AmBC) has become an integral part of ubiquitous Internet of Things (IoT) applications due to its energy-harvesting capabilities and ultra-low-power consumption. However, the open wireless environment…

Cryptography and Security · Computer Science 2025-06-24 Yifan Zhang , Yongchao Dang , Masoud Kaveh , Zheng Yan , Riku Jäntti , Zhu Han

This paper considers an ambient backscatter communication (AmBC) network in which a full-duplex access point (FAP) simultaneously transmits downlink orthogonal frequency division multiplexing (OFDM) signals to its legacy user (LU) and…

Information Theory · Computer Science 2018-06-19 Gang Yang , Dongdong Yuan , Ying-Chang Liang , Rui Zhang , Victor C. M. Leung

Ambient backscatter communication technology (AmBC) and a novel device category called zero-energy devices (ZED) have recently emerged as potential components for the forthcoming 6th generation (6G) networks. A ZED communicates with a…

Information Theory · Computer Science 2023-09-27 Papis Ndiaye , Dinh-Thuy Phan-Huy , Ayman Hassan , Jingyi Liao , Xiyu Wang , Kalle Ruttik , Riku Jantti