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Integrated Sensing and Communications (ISAC) has garnered significant attention as a promising technology for the upcoming sixth-generation wireless communication systems (6G). In pursuit of this goal, a common strategy is that a unified…

信号处理 · 电气工程与系统科学 2023-10-30 Zhen Du , Fan Liu , Yifeng Xiong , Tony Xiao Han , Weijie Yuan , Yuanhao Cui , Changhua Yao , Yonina C. Eldar

A new method for frequency synchronization based upon Zero-Intermediate Frequency Zero-IF receiver and characteristics of the received signal s power spectrum for MC-DSCDMA Up link system is proposed in this paper. In addition to this,…

网络与互联网体系结构 · 计算机科学 2014-02-18 V. Karthikeyan , V. J. Vijayalakshmi

This paper investigates network-level integrated sensing and communication (ISAC) under two fundamentally different topology configurations: cell-free massive MIMO (CF-mMIMO) and multi-cell massive MIMO (MC-mMIMO). A unified OFDM-based…

信息论 · 计算机科学 2026-05-07 Maryam Darabi , Sergi Liesegang , Emanuele Grossi , Stefano Buzzi

Integrated Sensing and Communications (ISAC) surpasses the conventional frequency-division sensing and communications (FDSAC) in terms of spectrum, energy, and hardware efficiency, with potential for greater enhancement through integration…

信息论 · 计算机科学 2024-07-16 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

The cell-free integrated sensing and communication (CF-ISAC) architecture is a promising enabler for 6G, offering spectrum efficiency and ubiquitous coverage. However, real deployments suffer from hardware impairments, especially nonlinear…

信号处理 · 电气工程与系统科学 2025-08-26 Yue Xiu , Yang Zhao , Ran Yang , Zheng Dong , Wanting Lyu , Zeyuan Zhang , Dusit Niyato , Guangyi Liu , Ning Wei

6G communication systems promise to deliver sensing capabilities by utilizing the orthogonal frequency division multiplexing (OFDM) communication signal for sensing. However, the cyclic prefix inherent in OFDM systems limits the sensing…

信号处理 · 电气工程与系统科学 2025-01-22 Benedikt Geiger , Silvio Mandelli , Marcus Henninger , Daniel Gil Gaviria , Charlotte Muth , Laurent Schmalen

This paper proposes a monostatic wideband system for integrated sensing and communication (ISAC) at millimeter-wave frequencies, based on multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM). The system…

信号处理 · 电气工程与系统科学 2026-02-23 Tommaso Bacchielli , Lorenzo Pucci , Andrea Giorgetti

Next-generation wireless systems will offer integrated sensing and communications (ISAC) functionalities not only in order to enable new applications, but also as a means to mitigate challenges such as doubly-dispersive channels, which…

This correspondence paper studies a network integrated sensing and communication (ISAC) system that unifies the interference channel for communication and distributed radar sensing. In this system, a set of distributed ISAC transmitters…

信息论 · 计算机科学 2022-03-24 Yi Huang , Yuan Fang , Xinmin Li , Jie Xu

Delay alignment modulation (DAM) has been recently proposed to enable manipulable channel delay spread for efficient single- or multi-carrier communications. In particular, with perfect delay alignment, inter-symbol interference (ISI) can…

信号处理 · 电气工程与系统科学 2022-07-11 Zhiqiang Xiao , Yong Zeng

In-band Full-Duplex (FD) Multiple-Input Multiple-Output (MIMO) systems offer a significant opportunity for Integrated Sensing and Communications (ISAC) due to their capability to realize simultaneous signal transmissions and receptions.…

信息论 · 计算机科学 2024-10-10 Besma Smida , George C. Alexandropoulos , Taneli Riihonen , Md Atiqul Islam

The widespread use of unmanned aerial vehicles (UAVs) in low-altitude airspace has raised significant safety and security concerns, motivating the development of reliable non-cooperative UAV surveillance technologies. Integrated sensing and…

信号处理 · 电气工程与系统科学 2026-04-06 Shiyu Bai , Sijia Li , Cunyi Yin , Wenqiu Qu , Li-Ta Hsu , Yuanwei Liu , Wen-Hua Chen

The integrated sensing and communication (ISAC) has been envisioned as one representative usage scenario of sixth-generation (6G) network. However, the unprecedented characteristics of 6G, especially the doubly dispersive channel, make…

信号处理 · 电气工程与系统科学 2025-07-08 Fan Zhang , Zhaocheng Wang , Tianqi Mao , Tianyu Jiao , Yinxiao Zhuo , Miaowen Wen , Wei Xiang , Sheng Chen , George K. Karagiannidis

Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) is a promising transmission scheme for high performance broadband wireless communications. However, this technique suffers from a major drawback which…

信息论 · 计算机科学 2014-12-30 Mouna Sghaier , Fatma Abdelkefi , Mohamed Siala

Achieving effective uplink bistatic ISAC over an OFDM waveform gives rise to challenging interference structures. These are mostly due to unequal direct- and echo-path contributions and Doppler-induced ICI, rendering orthogonal resource…

信号处理 · 电气工程与系统科学 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

The wireless domain is witnessing a flourishing of integrated systems, e.g. (a) integrated sensing and communications, and (b) simultaneous wireless information and power transfer, due to their potential to use resources (spectrum, power)…

信号处理 · 电气工程与系统科学 2024-06-25 Yumeng Zhang , Sundar Aditya , Bruno Clerckx

In integrated sensing and communication (ISAC) systems, pilot signals play a crucial role in enhancing sensing performance due to their strong autocorrelation properties and high transmission power. However, conventional interleaved pilots…

信号处理 · 电气工程与系统科学 2025-04-03 Ahmet Sacid Sumer , Ebubekir Memisoglu , Huseyin Arslan

The high peak-to-average-power ratio (PAPR) of orthogonal frequency-division multiplexing (OFDM) degrades the performance in optical wireless communication systems. This paper proposes a modified asymmetrically clipped optical OFDM…

信息论 · 计算机科学 2015-01-14 W. Xu , M. Wu , H. Zhang , X. You , C. Zhao

An integrated radar and communications system (IRCS) where a monostatic radar transceiver is employed for target classification while simultaneously used as a communications transmitter is considered. The radar combined propagation-target…

信号处理 · 电气工程与系统科学 2019-05-23 Yongjun Liu , Guisheng Liao , Zhiwei Yang

Cooperative communication has been widely used to provide spatial diversity benefits for low-end user equipments, especially in ad hoc and wireless sensor networks. However, the lack of strong authentication mechanisms in these networks…

信号处理 · 电气工程与系统科学 2021-10-19 Muhammad Sohaib J. Solaija , Haji M. Furqan , Zekeriyya Esat Ankaralı , Hüseyin Arslan