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Backscatter communication is a promising technology to enhance the signal strength received by the receiver in straight tunnel environments. The impact of the number of tags and their phase adjustment on system performance remains a…

Signal Processing · Electrical Eng. & Systems 2026-01-06 Yunping Mu , Gongpu Wang , Ruisi He , Theodoros A. Tsiftsis , Saman Atapattu , Chintha Tellambura

Networked integrated sensing and communication (ISAC) has gained significant attention as a promising technology for enabling next-generation wireless systems. To further enhance networked ISAC, delegating the reception of sensing signals…

Signal Processing · Electrical Eng. & Systems 2025-10-14 Meidong Xia , Zhenyao He , Wei Xu , Yongming Huang , Derrick Wing Kwan Ng , Naofal Al-Dhahir

We study a backscatter communication protocol over a AWGN channel, where a transmitter illuminates a tag with a directional multi-antenna. The tag performs load modulation on the signal while hiding its physical presence from a warden. We…

Information Theory · Computer Science 2022-02-09 Roberto Di Candia , Saneea Malik , Huseyin Yiğitler , Riku Jäntti

The idea of Media-based Modulation (MBM) is to embed information in the variations of the transmission media (channel states). Using an RF closure with $w$ RF walls, MBM creates a set of $2^w$ select-able states for the end-to-end channel.…

Information Theory · Computer Science 2022-02-08 Ehsan Seifi , Amir K. Khandani

Recent advances in backscatter open a promising direction for ultra-low power communication. However, the state-of-art ZigBee backscatter system, Interscatter, has several drawbacks to deploy. Its backscatter tag and exciting source,…

Signal Processing · Electrical Eng. & Systems 2021-11-23 Zhaoyuan Xu , Wei Gong

In this letter, we study the reference signal-aided channel estimation concept which is a crucial requirement to address the realistic performance of spatial media-based modulation (SMBM) systems where the radio frequency mirrors are…

Signal Processing · Electrical Eng. & Systems 2020-09-29 Akif Kabacı , Mehmet Başaran , Hakan Ali Çırpan

Integrated sensing and communication (ISAC) is a promising paradigm for future wireless systems due to spectrum reuse, hardware sharing, and joint waveform design. In dynamic scenes, Doppler shifts degrade both sensing and communication,…

Signal Processing · Electrical Eng. & Systems 2025-12-04 Yuan Liu , Wen-Xuan Long , M. R. Bhavani Shankar , Marco Moretti , Rui Chen , Björn Ottersten

With the commencement of the 5G of wireless networks, researchers around the globe have started paying their attention to the imminent challenges that may emerge in the beyond 5G (B5G) era. Various revolutionary technologies and innovative…

Signal Processing · Electrical Eng. & Systems 2021-02-23 Syed Junaid Nawaz , Shree Krishna Sharma , Babar Mansoor , Mohmammad N. Patwary , Noor M. Khan

Continued progress towards energy-neutral Internet of Things (IoT) nodes expose the wireless communication link as the dominant energy bottleneck. While low-power wide-area network (LPWAN) technologies achieve long-range communication with…

Signal Processing · Electrical Eng. & Systems 2026-05-13 Tijl Schepens , Gilles Callebaut , Liesbet Van der Perre

Orthogonal frequency-division multiplexing (OFDM) backscatter system, such as Wi-Fi backscatter, has recently been recognized as a promising technique for the IoT connectivity, due to its ubiquitous and low-cost property. This paper…

Networking and Internet Architecture · Computer Science 2018-10-30 Xiaoxue Zhang , Nanhuan Mi , Xin He , Panlong Yang , Haohua Du , Jiahui Hou , Peng-Jun Wan

Integrated sensing and communication holds great promise for low-altitude economy applications. However, conventional downtilted base stations primarily provide sectorized forward lobes for ground services, failing to sense air targets due…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Lingyi Zhu , Zhongxiang Wei , Fan Liu , Jianjun Wu , Xiao-Wei Tang , Christos Masouros , Shanpu Shen

Attaining the vision of Smart Cities requires the deployment of an enormous number of sensors for monitoring various conditions of the environment. Backscatter-sensors have emerged to be a promising solution due to the uninterruptible…

Information Theory · Computer Science 2018-01-11 Guangxu Zhu , Seung-Woo Ko , Kaibin Huang

Backscatter WiFi provides a novel solution to IoT device's energy consumption. Different from other backscatter WiFi solutions, MOXcatter works with multiple spatial streams, making it appliable in 802.11n and beyond. In this paper, we…

Networking and Internet Architecture · Computer Science 2023-05-18 Yucong Gao

This paper introduces a random modulation technique that is decoupled from the channel matrix, allowing it to be applied to arbitrary norm-bounded and spectrally convergent channel matrices. The proposed random modulation constructs an…

Information Theory · Computer Science 2026-01-01 Lei Liu , Yuhao Chi , Shunqi Huang

In this paper, we consider a simple coding scheme for spatial modulation (SM), where the same set of active transmit antennas is repeatedly used over consecutive multiple transmissions. Based on a Gaussian approximation, an approximate…

Information Theory · Computer Science 2019-01-01 Jinho Choi

Backscatter communication has attracted significant attention for Internet-of-Things applications due to its ultra-low-power consumption. The state-of-the-art backscatter systems no longer require dedicated carrier generators and leverage…

Networking and Internet Architecture · Computer Science 2024-08-30 Qiwei Wang , Wei Gong

Atmospheric turbulence severely limits the coupling of received optical wavefronts into single-mode fibers in satellite-to-ground free-space optical links. Spatial demultiplexing receivers address this challenge by distributing the incoming…

Optics · Physics 2026-03-20 Nicolas Barré

Spatial Modulation (SM) is a recently developed low-complexity Multiple-Input Multiple-Output scheme that uses antenna indices and a conventional signal set to convey information. It has been shown that the Maximum-Likelihood (ML) detection…

Information Theory · Computer Science 2013-01-17 Rakshith Rajashekar , K. V. S. Hari

Future wireless networks targeted for improving spectral and energy efficiency, are expected to simultaneously provide sensing functionality and support low-power communications. This paper proposes a novel net-zero integrated sensing and…

Signal Processing · Electrical Eng. & Systems 2025-03-04 Yu Zhang , Tongyang Xu , Christos Masouros , Zhu Han

Movable antennas (MAs) have attracted growing interest for their ability to improve channel conditions via adaptive antenna movement. Nevertheless, such movement inevitably introduces mutual coupling (MC), whose impact has been largely…

Information Theory · Computer Science 2026-04-30 Tianyi Liao , Wei Guo , Jun Qian , Zixin Wang , Shenghui Song , Jun Zhang , Khaled B. Letaief
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