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The fast deployment of cognitive radar to counter jamming remains a critical challenge in modern warfare, where more efficient deployment leads to quicker detection of targets. Existing methods are primarily based on evolutionary…

人工智能 · 计算机科学 2026-01-06 Wencheng Cai , Xuchao Gao , Congying Han , Mingqiang Li , Tiande Guo

With the rapid development of radar jamming systems, especially digital radio frequency memory (DRFM), the electromagnetic environment has become increasingly complex. In recent years, most existing studies have focused solely on either…

信号处理 · 电气工程与系统科学 2025-06-10 Huake Wang , Xudong Han , Bairui Cai , Guisheng Liao , Yinghui Quan

Wireless power transfer and energy harvesting have attracted a significant research attention in terms of their application in cooperative relaying systems. Most of existing works in this field focus on the half-duplex (HD) relaying…

信号处理 · 电气工程与系统科学 2018-08-09 Galymzhan Nauryzbayev , Mohamed Abdallah , Khaled M. Rabie

In-band full-duplex (FD) communications have been optimistically promoted to improve the spectrum utilization and efficiency. However, the penetration of FD communications to the cellular networks domain is challenging due to the imposed…

信息论 · 计算机科学 2016-07-12 Ahmad AlAmmouri , Hesham ElSawy , Osama Amin , Mohamed-Slim Alouini

Faster-than-Nyquist non-orthogonal frequency-division multiplexing (FTN-NOFDM) is robust against the steep frequency roll-off by saving signal bandwidth. Among the FTN-NOFDM techniques, the non-orthogonal matrix precoding (NOM-p) based FTN…

信号处理 · 电气工程与系统科学 2023-12-07 Peiji Song , Zhouyi Hu , Yizhan Dai , Yuan Liu , Chao Gao , Chun-Kit Chan

In this paper we address a sum secrecy rate maximization problem for a multi-carrier and MIMO communication system. We consider the case that the receiver is capable of full-duplex (FD) operation and simultaneously sends jamming signal to a…

信息论 · 计算机科学 2018-02-19 Tianyu Yang , Omid Taghizadeh , Rudolf Mathar

In energy harvesting (EH) relay networks, the coherent communication requires accurate estima- tion/tracking of the instantaneous channel state information (CSI) which consumes extra power. As a remedy, we propose two noncoherent EH…

信息论 · 计算机科学 2015-06-15 Peng Liu , Saeed Gazor , Il-Min Kim , Dong In Kim

The inherent vulnerability of wireless communication necessitates strategies to enhance its security, particularly in the face of jamming attacks. This paper uses the collaborations of multiple sensing nodes (SNs) in the wireless network to…

信息论 · 计算机科学 2025-09-16 Amir Mehrabian , Georges Kaddoum

With conventional anti-jamming solutions like frequency hopping or spread spectrum, legitimate transceivers often tend to "escape" or "hide" themselves from jammers. These reactive anti-jamming approaches are constrained by the lack of…

网络与互联网体系结构 · 计算机科学 2019-04-09 Nguyen Van Huynh , Diep N. Nguyen , Dinh Thai Hoang , Eryk Dutkiewicz

In this paper, a novel full-duplex non-coherent (FD-NC) transmission scheme is developed for massive multiple-input multiple-output (mMIMO) systems using analog beamforming (ABF). We propose to use a structured Grassmannian constellation…

信息论 · 计算机科学 2022-02-01 Asil Koc , Ahmed Masmoudi , Tho Le-Ngoc

Federated learning (FL) offers a decentralized learning environment so that a group of clients can collaborate to train a global model at the server, while keeping their training data confidential. This paper studies how to launch…

机器学习 · 计算机科学 2022-01-17 Yi Shi , Yalin E. Sagduyu

Virtual full-duplex (VFD) is a powerful solution to compensate the rate loss of half-duplex relaying without the need to full-duplex capable nodes. Inter-relay interference (IRI) challenges the operation of VFD relaying systems. Recently,…

信息论 · 计算机科学 2017-02-15 Mohamed Gaafar , Osama Amin , Rafael F. Schaefer , Mohamed-Slim Alouini

In fading channels, power allocation over channel state may bring a rate increment compared to the fixed constant power mode. Such a rate increment is referred to power allocation gain. It is expected that the power allocation gain varies…

信息论 · 计算机科学 2014-12-25 Zhengchuan Chen , Pingyi Fan , Dapeng Wu , Liquan Shen

Quantize-Map-and-Forward (QMF) relaying has been shown to achieve the optimal diversity-multiplexing trade-off (DMT) for arbitrary slow fading full-duplex networks as well as for the single-relay half-duplex network. A key reason for this…

信息论 · 计算机科学 2016-11-18 Ayan Sengupta , I-Hsiang Wang , Christina Fragouli

In this paper, a novel cooperative non-orthogonal multiple access (NOMA) system is proposed, where one near user is employed as decode-and-forward (DF) relaying switching between full-duplex (FD) and half-duplex (HD) mode to help a far…

信息论 · 计算机科学 2018-12-19 Xinwei Yue , Yuanwei Liu , Shaoli Kang , Arumugam Nallanathan , Zhiguo Ding

In this paper, we study covert communications between {a pair of} legitimate transmitter-receiver against a watchful warden over slow fading channels. There coexist multiple friendly helper nodes who are willing to protect the covert…

信息论 · 计算机科学 2021-05-13 Tong-Xing Zheng , Ziteng Yang , Chao Wang , Zan Li , Jinhong Yuan , Xiaohong Guan

The effectiveness of frequency hopping for anti-jamming protection of wireless channels is analyzed from an information-theoretic perspective. The sender can input its symbols into one of several frequency subbands at a time. Each subband…

信息论 · 计算机科学 2015-12-22 Moritz Wiese , Panos Papadimitratos

This paper studies secrecy transmission with the aid of a group of wireless energy harvesting (WEH)-enabled amplify-and-forward (AF) relays performing cooperative jamming (CJ) and relaying. The source node in the network does simultaneous…

信息论 · 计算机科学 2015-11-13 Hong Xing , Kai-Kit Wong , Arumugam Nallanathan , Rui Zhang

Network assisted full-duplex (NAFD) is a spatial-division duplex technique for future wireless networks with cell-free massive multiple-input multiple-output (CF massive MIMO) network, where a large number of remote antenna units (RAUs),…

信息论 · 计算机科学 2019-05-28 Dongming Wang , Menghan Wang , Pengcheng Zhu , Jiamin Li , Jiangzhou Wang , Xiaohu You

In this paper, a cooperative relay network consisting of a single-antenna source, a multi-antenna relay, and a multi-antenna destination is considered. The relay operates in decode-and-forward (DF) mode under frequency-selective fading. To…

信号处理 · 电气工程与系统科学 2025-03-17 Farshad Dizani , Ali Olfat