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In this paper, we explore an integrated sensing and communication (ISAC) system with backscattering RFID tags. In this setup, an access point employs a communication beam to serve a user while leveraging a sensing beam to detect an RFID…

Signal Processing · Electrical Eng. & Systems 2024-02-02 Hao Luo , Umut Demirhan , Ahmed Alkhateeb

This study introduces and investigates the integration of a cell-free architecture with bistatic backscatter communication (BiBC), referred to as cell-free BiBC or distributed access point (AP)-assisted BiBC, which can enable potential…

Information Theory · Computer Science 2023-10-03 Diluka Galappaththige , Fatemeh Rezaei , Chintha Tellambura , Amine Maaref

In this paper, a novel transmissive reconfigurable meta-surface (RMS) transceiver enabled multi-tier computing network architecture is proposed for improving computing capability, decreasing computing delay and reducing base station (BS)…

Signal Processing · Electrical Eng. & Systems 2022-10-28 Zhendong Li , Wen Chen , Ziwei Liu , Hongying Tang , Jianmin Lu

This paper considers the joint transceiver design in a wireless sensor network where multiple sensors observe the same physical event and transmit their contaminated observations to a fusion center, with all nodes equipped with multiple…

Information Theory · Computer Science 2015-06-22 Yang Liu , Jing Li , Xuanxuan Lu , Chau Yuen

Ambient backscatter communications have been introduced as low-power communications for green networking. This technology is very promising as it recycles ambient radio frequency waves, however such systems have limitations and suffer from…

Signal Processing · Electrical Eng. & Systems 2021-11-04 Romain Fara , Nada Bel-Haj-Maati , Dinh-Thuy Phan-Huy , Nadine Malhouroux , Marco Di Renzo

Bistatic backscatter communication (BackCom) allows passive tags to transmit over extended ranges, but at the cost of having carrier emitters either transmitting at high powers or being deployed very close to tags. In this paper, we examine…

Information Theory · Computer Science 2021-11-09 Xiaolun Jia , Xiangyun Zhou , Dusit Niyato , Jun Zhao

This paper studies the performance trade-off in a multi-user backscatter communication (BackCom) system for integrated sensing and communications (ISAC), where the multi-antenna ISAC transmitter sends excitation signals to power multiple…

Information Theory · Computer Science 2024-06-04 Yuanming Tian , Dan Wang , Chuan Huang , Wei Zhang

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 communication is an emerging and promising low-energy technology for the Internet of Things. In such a system, a tag sends a binary message to a reader by backscattering a radio frequency signal generated by an ambient…

In this paper, we consider a novel ambient backscatter multiple-access system, where a receiver (Rx) simultaneously detects the signals transmitted from an active transmitter (Tx) and a backscatter Tag. Specifically, the…

Information Theory · Computer Science 2024-10-30 Wanchun Liu , Ying-Chang Liang , Yonghui Li , Branka Vucetic

Bistatic backscatter communication facilitates ubiquitous, massive connectivity of passive tags for future Internet-of-Things (IoT) networks. The tags communicate with readers by reflecting carrier emitter (CE) signals. This work addresses…

Information Theory · Computer Science 2024-07-29 S. Zargari , D. Galappaththige , C. Tellambura

This work studies inference-based resource allocation in ultra low-power, large-scale backscatter sensor networks (BSNs). Several ultra-low cost and power sensor devices (tags) are illuminated by a carrier and reflect the measured…

Information Theory · Computer Science 2019-07-18 Panos N. Alevizos , Aggelos Bletsas

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

Many real-world sensing tasks require co-located, multi-modal measurements at a single site, typically a bundle of two to five sensors, for example, in plant stress sensing and blood pressure estimation. RF-backscatter devices have emerged…

Networking and Internet Architecture · Computer Science 2025-11-17 Yijie Li , Weichong Ling , Taiting Lu , Bao Dao , Yi-Chao Chen , Vaishnavi Ranganathan , Lili Qiu , Jingxian Wang

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

Future wireless networks are expected to connect large-scale low-powered communication devices using the available spectrum resources. Backscatter communications (BC) is an emerging technology towards battery-free transmission in future…

Signal Processing · Electrical Eng. & Systems 2022-08-03 Wali Ullah Khan , Eva Lagunas , Asad Mahmood , Zain Ali , Symeon Chatzinotas , Björn Ottersten , Octavia A. Dobre

Symbiotic radio (SR) is emerging as a spectrum- and energy-efficient communication paradigm for future passive Internet-of-things (IoT), where some single-antenna backscatter devices, referred to as Tags, are parasitic in an active primary…

Information Theory · Computer Science 2020-06-25 Xihan Chen , Hei Victor Cheng , Kaiming Shen , An Liu , Min-Jian Zhao

In this paper, we consider the problem of joint transceiver design for millimeter wave (mmWave)/Terahertz (THz) multi-user MIMO integrated sensing and communication (ISAC) systems. Such a problem is formulated into a nonconvex optimization…

Information Theory · Computer Science 2024-02-01 Peilan Wang , Jun Fang , Xianlong Zeng , Zhi Chen , Hongbin Li

This paper considers the joint transceiver design for downlink multiuser multiple-input single-output (MISO) systems with coordinated base stations (BSs) where imperfect channel state information (CSI) is available at the BSs and mobile…

Optimization and Control · Mathematics 2013-11-26 Tadilo Endeshaw , Luc Vandendorpe , Batu Krishna Chalise

Relay-enabled backscatter communication (BC) is an intriguing paradigm to alleviate energy shortage and improve throughput of Internet-of-Things (IoT) devices. Most of the existing works focus on the resource allocation that considered the…

Information Theory · Computer Science 2023-07-27 Rui Xu , Liqin Shi , Yinghui Ye , Haijian Sun , Gan Zheng