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相关论文: Securing Full-Duplex Amplify-and-Forward Relay-Aid…

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Robust transceiver design against unresolvable system uncertainties is of crucial importance for reliable communication. For instance, full-duplex communication suffers from such uncertainties when canceling the self-interference, since the…

信息论 · 计算机科学 2019-01-28 Ali Kariminezhad , Aydin Sezgin

In this paper, we study beamforming in decode-and-forward (DF) relaying using multiple relays, where the source node sends a secret message as well as a non-secret message to the destination node in the presence of multiple non-colluding…

信息论 · 计算机科学 2014-02-03 Sanjay Vishwakarma , A. Chockalingam

Device-to-device (D2D) communication raises new transmission secrecy protection challenges, since conventional physical layer security approaches, such as multiple antennas and cooperation techniques, are invalid due to its resource/size…

信息论 · 计算机科学 2018-11-16 Hui-Ming Wang , Bing-Qing Zhao , Tong-Xing Zheng

This paper make an investigation of a secure unmanned aerial vehicle (UAV)-aided communication network based on directional modulation(DM), in which one ground base station (Alice), one legitimate full-duplex (FD) user (Bob) and one illegal…

信息论 · 计算机科学 2019-04-09 Feng Shu , Zaoyu Lu , Shuo Zhang , Jin Wang , Xiaobo Zhou , Linlin Sun , Jinhui Lu , Jinyong Lin , Wenlong Cai

Full Duplex (FD) technology is considered as one of the next big leap in the evolution of modern WLANs. Allowing a node to simultaneously transmit a data frame while in receive mode, can theoretically double the system throughput. However,…

网络与互联网体系结构 · 计算机科学 2026-05-25 Anastasios C. Politis , Constantinos S. Hilas , Hristos T. Anastassiu

The hybrid half-duplex/full-duplex (HD/FD) relaying scheme is an effective paradigm to overcome the negative effects of the self-interference incurred by the full-duplex (FD) mode. However, traditional hybrid HD/FD scheme does not consider…

信息论 · 计算机科学 2018-02-23 Cheng Li , Bin Xia , Zhiyong Chen

Dual-functional radar communication (DFRC) system has recently attracted significant academic attentions as an enabling solution for realizing radar-communication spectrum sharing. During the DFRC transmission, however, the critical…

信号处理 · 电气工程与系统科学 2019-09-11 Nanchi Su , Fan Liu , Christos Masouros

In this paper, we extend our method [1] for FMCW radar mutual interference mitigation (IM) based on the discrete fractional Fourier transform (DFrFT). Firstly, we propose a radar signal processing chain including our DFrFT-based IM for…

信号处理 · 电气工程与系统科学 2026-05-01 Christian Oswald , Josef Kulmer , Franz Pernkopf

The OTFS (Orthogonal Time Frequency Space) is widely acknowledged for its ability to combat Doppler spread in time-varying channels. In this paper, another advantage of OTFS over OFDM (Orthogonal Frequency Division Multiplexing) will be…

信号处理 · 电气工程与系统科学 2024-08-20 Zijun Gong , Fan Jiang , Yuhui Song , Cheng Li , Xiaofeng Tao

We consider a dual-hop full-duplex relaying system, where the energy constrained relay node is powered by radio frequency signals from the source using the time-switching architecture, both the amplify-and-forward and decode-and-forward…

信息论 · 计算机科学 2014-09-16 Caijun Zhong , Himal A. Suraweera , Gan Zheng , Ioannis Krikidis , Zhaoyang Zhang

Physical layer (PHY) security in decode-and-forward (DF) relay systems is discussed. Based on the types of wiretap links, the secrecy performance of three typical secure DF relay models is analyzed. Different from conventional works in this…

信息论 · 计算机科学 2022-07-12 Chongjun Ouyang , Hao Xu , Xujie Zang , Hongwen Yang

In this paper, relay selection is considered to enhance security of a cooperative system with multiple threshold-selection decode-and-forward (DF) relays. Threshold-selection DF relays are the relays in which a predefined signal-to-noise…

信号处理 · 电气工程与系统科学 2018-03-05 C. Kundu , T. M. N. Ngatched , O. A. Dobre

This paper studies the Degrees of Freedom (DoF) of the two-user multi-antenna Gaussian interference channel with an {\em instantaneous relay}, or relay without delay, where the relay transmitted signal in channel use $t$ can depend on all…

信息论 · 计算机科学 2015-06-23 Tang Liu , Daniela Tuninetti , Sae-Young Chung

A multi-hop two-way relay channel is considered in which all the terminals are equipped with multiple antennas. Assuming independent quasi-static Rayleigh fading channels and channel state information available at the receivers, we…

信息论 · 计算机科学 2008-12-19 Deniz Gunduz , Andrea Goldsmith , H. Vincent Poor

Error propagation and noise propagation at the relay node would highly degrade system performance in two-way relay networks. In this paper, we introduce DNF-AF selection two-way relaying scheme which aims to avoid error propagation and…

信息论 · 计算机科学 2013-05-09 Tian Zhang

A full-duplex (FD) multiple antenna access point (AP) communicating with single antenna half-duplex (HD) spatially random users to support simultaneous uplink (UL)/downlink (DL) transmissions is investigated. Since FD nodes are inherently…

信息论 · 计算机科学 2016-11-18 Mohammadali Mohammadi , Himal A. Suraweera , Yun Cao , Ioannis Krikidis , Chintha Tellambura

This paper proposes a new scheme to secure the transmissions in an untrusted decode-and-forward (DF) relaying network. A legitimate source node, Alice, sends her data to a legitimate destination node, Bob, with the aid of an untrusted DF…

信息论 · 计算机科学 2017-06-13 Ahmed El Shafie , Ahmed Sultan , Asma Mabrouk , Kamel Tourki , Naofal Al-Dhahir

This paper demonstrates the significant gains that multi-access users can achieve from sharing a single amplify-forward relay in slow fading environments. The proposed protocol, namely the multi-access relay amplify-forward, allows for a…

信息论 · 计算机科学 2009-09-29 Deqiang Chen , Kambiz Azarian , J. Nicholas Laneman

The capacity of a relay channel with inter-symbol interference (ISI) and additive colored Gaussian noise is examined under an input power constraint. Prior results are used to show that the capacity of this channel can be computed by…

信息论 · 计算机科学 2011-03-02 Chiranjib Choudhuri , Urbashi Mitra

This paper focuses on energy recycling in full-duplex (FD) relaying multiple-input-multiple-output orthogonal frequency division multiplexing (OFDM) communication. The loop self-interference (SI) due to full-duplexing is seen as an…

信息论 · 计算机科学 2019-03-26 Ali A. Nasir , H. D. Tuan , T. Q. Duong , H. V. Poor