English
Related papers

Related papers: A Novel Pilot Allocation Technique for Uplink OFDM…

200 papers

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…

Signal Processing · Electrical Eng. & Systems 2026-05-22 Bruno F. Costa , Anup Mishra , Israel Leyva-Mayorga , Taufik Abrão , Petar Popovski

Orthogonal time frequency space (OTFS) modulation has been proposed to meet the demand for reliable communication in high-mobility scenarios for future wireless networks. However, in multi-user OTFS systems, conventional embedded pilot…

Information Theory · Computer Science 2025-12-03 Ruizhe Wang , Hong Ren , Cunhua Pan , Ruisong Weng , Jiangzhou Wang

We propose a novel pilot-free multi-user uplink framework for integrated sensing and communication (ISAC) in mm-wave networks, where single-antenna users transmit orthogonal frequency division multiplexing signals without dedicated pilots.…

Signal Processing · Electrical Eng. & Systems 2025-05-05 Sajad Daei , Gabor Fodor , Mikael Skoglund

As the uplink sensing has the advantage of easy implementation, it attracts great attention in integrated sensing and communication (ISAC) system. This paper presents an uplink ISAC system based on multi-input multi-output orthogonal…

Information Theory · Computer Science 2023-10-11 Jinghui Piao , Zhiqing Wei , Xin Yuan , Xiaoyu Yang , Huici Wu , Zhiyong Feng

In the context of communication-centric integrated sensing and communication (ISAC), the orthogonal frequency division multiplexing (OFDM) waveform was proven to be optimal in minimizing ranging sidelobes when random signaling is used. A…

Signal Processing · Electrical Eng. & Systems 2025-05-06 Karim A. Said , Ibraheem Alturki , Husheng Li , Elizabeth Bentley , Lingjia Liu

This letter studies an uplink integrated sensing and communication (ISAC) system using discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) transmission. We try to answer the following fundamental…

Information Theory · Computer Science 2024-12-31 Zhiqiang Xiao , Zhiwen Zhou , Qianglong Dai , Yong Zeng , Fei Yang , Yan Chen

Integrated Sensing and Communications (ISAC) is emerging as a key enabler for 6G networks, with signaling design at the core of its evolution. This paper reviews the paradigm shift of ISAC signaling designs from pilot-aided sensing to data…

Signal Processing · Electrical Eng. & Systems 2025-12-01 Yunxin Li , Ying Zhang , Christos Masouros , Sofie Pollin , Fan Liu

Applying integrated sensing and communication (ISAC) to a cell-free massive multiple-input multiple-output (CF mMIMO) architecture has attracted increasing attention. This approach equips CF mMIMO networks with sensing capabilities and…

Information Theory · Computer Science 2024-05-31 Yifei Fan , Shaochuan Wu , Xixi Bi , Guoyu Li

This paper tackles two key challenges in cell-freemassive multiple input multiple output (CF-mMIMO) systems:efficient pilot allocation and practical receiver design. To thisend, we introduce a novel pilot allocation framework…

Signal Processing · Electrical Eng. & Systems 2025-09-08 Getuar Rexhepi , Kuranage Roche Rayan Ranasinghe , Kengo Ando , Giuseppe Thadeu Freitas de Abreu , David Gonzalez G

The integration of sensing capabilities into communication systems, by sharing physical resources, has a significant potential for reducing spectrum, hardware, and energy costs while inspiring innovative applications. Cooperative networks,…

Signal Processing · Electrical Eng. & Systems 2024-08-26 Zhenkun Zhang , Hong Ren , Cunhua Pan , Sheng Hong , Dongming Wang , Jiangzhou Wang , Xiaohu You

Integrated sensing and communications (ISAC) has attracted tremendous attention for the future 6G wireless communication systems. To improve the transmission rates and sensing accuracy, massive multi-input multi-output (MIMO) technique is…

Signal Processing · Electrical Eng. & Systems 2022-07-20 Liangyuan Xu , Feifei Gao

We propose a pilot-data transmission overlay scheme for multipair massive multiple-input multiple-output (MIMO) relaying systems employing either half- or full-duplex (HD or FD) communications at the relay station (RS). In the proposed…

Information Theory · Computer Science 2016-06-06 Leyuan Pan , Yongyu Dai , Wei Xu , Xiaodai Dong

This paper presents a sensing management frame- work for integrated sensing and communications (ISAC) within cell-free massive multiple-input multiple-output (MIMO) systems to reduce pilot-based channel state information (CSI) acquisition…

Signal Processing · Electrical Eng. & Systems 2026-04-22 Eren Berk Kama , Murat Babek Salman , Isaac Skog , Emil Björnson

A point-to-point integrated sensing and communication (ISAC) system is considered where a transmitter conveys a message to a receiver over a discrete memoryless channel (DMC) and simultaneously estimates the state of the channel through the…

Information Theory · Computer Science 2025-01-14 Homa Nikbakht , Michèle Wigger , Shlomo Shamai , H. Vincent Poor

This letter analyzes the fundamental performance of integrated sensing and communications (ISAC) systems. For downlink and uplink ISAC, the diversity orders are analyzed to evaluate the communication rate (CR) and the high signal-to-noise…

Information Theory · Computer Science 2022-06-17 Chongjun Ouyang , Yuanwei Liu , Hongwen Yang

The ongoing convergence of spectrum and hardware requirements for wireless sensing and communication applications has fueled the integrated sensing and communication (ISAC) paradigm in next-generation networks. Neural-network-based ISAC…

Signal Processing · Electrical Eng. & Systems 2025-09-26 Ziyi Wang , Frederik Zumegen , Christoph Studer

Integrated sensing and communication (ISAC) is a key feature of next-generation wireless networks, enabling a wide range of emerging applications such as vehicle-to-everything (V2X) and unmanned aerial vehicles (UAVs), which operate in…

Signal Processing · Electrical Eng. & Systems 2025-11-03 Haoran Yin , Yanqun Tang , Jun Xiong , Fan Liu , Yuanhan Ni , Qu Luo , Roberto Bomfin , Marwa Chafii , Marios Kountouris , Christos Masouros

Integrated sensing and communication (ISAC) technology is crucial for next-generation underwater networks. However, covering multiple users and targets and balancing sensing and communication performance in complex underwater acoustic (UWA)…

Networking and Internet Architecture · Computer Science 2025-12-16 Wei Men , Longfei Zhao , Yong Liang Guan , Xiangwang Hou , Yong Ren , Dusit Niyato

Integrated sensing and communication (ISAC) will greatly enhance the efficiency of physical resource utilization. The design of ISAC signal based on the orthogonal frequency division multiplex (OFDM) signal is the mainstream. However, when…

Signal Processing · Electrical Eng. & Systems 2023-07-14 Lin Wang , Zhiqing Wei , Liyan Su , Zhiyong Feng , Huici Wu , Dongsheng Xue

A distributed integrated sensing and communication (D-ISAC) system offers significant cooperative gains for both sensing and communication performance. These gains, however, can only be fully realized when the distributed nodes are…

Signal Processing · Electrical Eng. & Systems 2025-03-13 Kawon Han , Kaitao Meng , Christos Masouros