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Joint Beamforming Design for Integrated Sensing and Communication Systems with Hybrid-Colluding Eavesdroppers

IEEE Transactions on Communications 2025年

作者： Liu, Meiding Zhou, Zhengchun Shi, Qiao Li, Guyue Liu, Zilong Fan, Pingzhi Lee, Inkyu Southwest Jiaotong University School of Information Science and Technology Chengdu611756 China Key Laboratory of Analytical Mathematics and Applications China Southeast University School of Cyber Science and Engineering Nanjing210096 China Purple Mountain Laboratories for Network and Communication Security Nanjing210096 China University of Essex School of Computer Science and Electronics Engineering ColchesterCO4 3SQ United Kingdom Southwest Jiaotong University Key Laboratory of Information Coding and Transmission Chengdu611756 China Korea University School of Electrical Engineering Seoul02841 Korea Republic of

In this paper, we consider the physical layer security (PLS) problem for integrated sensing and communication (ISAC) systems in the presence of hybrid-colluding eavesdroppers, where an active eavesdropper (AE) and a passive eavesdropper (PE) collude to intercept the confidential information. To ensure the accuracy of sensing while preventing the eavesdropping, a base station transmits a signal consisting of information symbols and sensing waveform, in which the sensing waveform can be also used as artificial noise to interfere with eavesdroppers. Under this setup, we propose an alternating optimization-based two stage scheme (AO-TSS) for improving the sensing and communication performance. In the first stage, based on the assumptions that the perfect channel state information (CSI) of the AE and statistical CSI of the PE are known, the communication and sensing beamforming problem is formulated with the objective of minimizing the weighted sum of the beampattern matching mean squared error (MSE) and cross-correlation, subject to the secure transmission constraint. To tackle the non-convexity, we propose a semi-definite relaxation (SDR) algorithm and a reduced-complexity zero-forcing (ZF) algorithm. Then, the scenarios are further extended to more general cases with imperfect AE CSI and unknown PE CSI. To further improve the communication performance, the second-stage problem is developed to optimize the secrecy rate threshold under the radar performance constraint. Finally, numerical results demonstrate the superiority of the proposed scheme in terms of sensing and secure communication. © 1972-2012 IEEE.

关键词： Mean square error

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Joint Beamforming Design for Integrated Sensing and Communication Systems with Hybrid-Colluding Eavesdroppers

arXiv

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arXiv 2025年

作者： Liu, Meiding Zhou, Zhengchun Shi, Qiao Li, Guyue Liu, Zilong Fan, Pingzhi Lee, Inkyu School of Information Science and Technology Southwest Jiaotong University Chengdu611756 China Key Laboratory of Analytical Mathematics and Applications [Fujian Normal University Ministry of Education China Purple Mountain Laboratories for Network and Communication Security Nanjing210096 China School of Cyber Science and Engineering Southeast University Nanjing210096 China School of Computer Science and Electronics Engineering University of Essex ColchesterCO4 3SQ United Kingdom Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu611756 China School of Electrical Engineering Korea University Seoul02841 Korea Republic of

关键词： Mean square error

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On a Hybrid Preamble/Soft-Output Demapper Approach for Time Synchronization for IEEE 802.15.6 Narrowband WBAN

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China Communications 2015年第2期12卷 1-10页

作者： Imen Nasr Leila Najjar Atallah Sofiane Cherif YANG Jianxiao WANG Kunlun Unité d'Informatique et d'Ingènierie des Systemes(U2IS) Ecole Nationale Supérieure de Techniques Avancées(ENSTA Paris Tech) Communication Signal and Image(COSIM) LaboratoryHigher School of Communications of Tunis(Sup'Com) Network Coding and Transmission Laboratory Shanghai Jiao Tong University

In this paper,we present a maximum likelihood(ML) based time synchronization algorithm for Wireless Body Area networks(WBAN).The proposed technique takes advantage of soft information retrieved from the soft demapper for the time delay *** algorithm has a low complexity and is adapted to the frame structure specified by the IEEE 802.15.6standard[1]for the narrowband *** results have shown good performance which approach the theoretical mean square error limit bound represented by the Cramer Rao Bound(CRB).

关键词： WBAN IEEE 802.15.6 time synchronization ML estimation soft demapping

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NPS: Non-periodic sensing for opportunistic spectrum access

NPS: Non-periodic sensing for opportunistic spectrum access

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2010 International Conference on Wireless Communications and Signal Processing, WCSP 2010

作者： Zhang, Ning Wang, Wei Zhang, Zhaoyang Department of Information Science and Electronic Engineering Key Laboratory of Integrate Information Network Technology Zhejiang University Hangzhou 310027 China Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu 610031 China

ISBN: (纸本)9781424475551

One of the most challenging issues in cognitive radio networks is when and how often to sense the availability of licensed spectrum. Adopting the fixed sensing period to detect signals, the conventional periodic spectrum sensing method is inefficient or even not able to satisfy the various demands of secondary users. In this paper, we propose a non-periodic sensing (NPS) mechanism, which reduces the sensing overhead based on the users' data rate requirement and the spectrum availability statistics. Based on the theoretic framework of NPS, we propose three specific NPS methods-Demand-oriented method, Max-oriented method and Mix method-to schedule the spectrum sensing adaptively. The simulation results shows the improvement on the sensing efficiency compared with the periodic sensing approach. ©2010 IEEE.

关键词： Cognitive radio

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Optimal resource allocation for cognitive radio networks with imperfect spectrum sensing

Optimal resource allocation for cognitive radio networks wit...

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2010 IEEE 71st Vehicular Technology Conference, VTC 2010-Spring

作者： Wu, Kejian Wang, Wei Luo, Haiyan Yu, Guanding Zhang, Zhaoyang Department of Information Science and Electronic Engineering Key Laboratory of Integrate Information Network Technology Zhejiang University Hangzhou310027 China Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu610031 China

In this paper, an optimal resource allocation scheme is proposed for multi-user multi-channel cognitive radio networks under imperfect spectrum sensing. The channel dynamic model and the sensing errors are considered together to derive the metric of mean delay for each user-channel combination based on the vacation queueing model. Finally, the optimal resource allocation is determined according to the average system delay by bipartite graph matching. The simulation results indicate that the proposed mean delay metric can represent the transmission performance successfully. © 2010 IEEE.

关键词： Queueing theory

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Rate region for deterministic multiple access relay channel

Rate region for deterministic multiple access relay channel

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IEEE Conference on Wireless Communications and networking

作者： Yang Yu Wen Chen Network Coding and Transmission Laboratory Shanghai Jiao Tong University Shanghai China

ISBN: (纸本)9781467359382

Recently, a network equivalence theory has been proposed by Koetter et al. to model the behavior of wireless and noisy wireline network components in terms of noiseless wireline models in combinatorial essence. Meanwhile the truncated deterministic model is proposed by Avestimehr et al. to approximate Gaussian relay network. In this paper, we utilize the deterministic approximation to model Multiple Access Relay Channel (MARC), gives the admissible rate regions for deterministic MARC (D-MARC) and designs simplified transmission schemes for MARC. Moreover, by allowing source cooperation, we give an algebraic formulation with non-fixed adjacency matrix to guarantee an proper code construction for DMARC and interpret the set of demands by an efficient deterministic transmission. Results in this paper can be extended to more complicated equivalent networks by seeing MARC as a component network.

关键词： Relays network coding Encoding Wireless communication Equations Ports (Computers)

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Sensing error aware delay-optimal channel allocation scheme for cognitive radio networks

Sensing error aware delay-optimal channel allocation scheme ...

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作者： Wang, Wei Wu, Kejian Luo, Haiyan Yu, Guanding Zhang, Zhaoyang Department of Information Science and Electronic Engineering Zhejiang Provincial Key Laboratory of Information Network Technology Zhejiang University Hangzhou 310027 China Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu 610031 China

Spectrum sensing is not always perfect in practical cognitive radio networks. In this paper, two kinds of sensing errors are considered into the channel allocation scheme. Our work focuses on the cases that the channel availability varies fast during a channel allocation period, in which case the channel dynamics needs to be considered. The sensing errors are modeled to derive the metric of mean delay for each user-channel combination using the vacation queueing model. Further, the optimal resource allocation is determined based on the mean delay metric by bipartite graph matching. The simulation results indicate that the proposed mean delay metric can represent the transmission performance successfully, and the proposed resource allocation scheme is robust to sensing errors. © 2011 Springer Science+Business Media, LLC.

关键词： Cognitive radio

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Cooperative Decoder Design for Non-binary LDPC Code with Coefficients Selection

Cooperative Decoder Design for Non-binary LDPC Code with Coe...

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IEEE Global Communications Conference

作者： Yang Yu Wen Chen Jun Li Benoit Geller Network Coding and Transmission Laboratory Shanghai Jiao Tong University School of Electrical and Information Engineering The University of Sydney UEI ENSTA ParisTech

ISBN: (纸本)9781479913510

In this paper we design novel decoders for non-binary low density parity check (LDPC) codes. For a non-binary LDPC code C over the field F_q of size q for some q > 0, we propose two novel cooperative decoders, each composed of a binary component decoder and a q-ary component decoder in a concatenated manner, to obtain excellent decoding performance. Specifically to reduce the complexity of the cooperative decoders, we design a hybrid q-ary component decoder. Then, we propose an algorithm to construct the parity check matrix to eliminate the bit-level cycles. Simulations show that the decoding performance of the proposed algorithm approaches the capacity limit within 0.2dB at BER 0~(-4).

关键词： Non-binary LDPC EXIT chart Binary erasure channel Binary Gaussian channel decoders low density parity check codes check matrix Codes

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NPS: Non-periodic sensing for opportunistic spectrum access

NPS: Non-periodic sensing for opportunistic spectrum access

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Ning Zhang Wei Wang Zhaoyang Zhang Department of Information Science and Electronic Engineering Key Laboratory of Integrate Information Network Technology University of Zhejiang Hangzhou China Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu China

关键词： Sensors Cognitive radio Schedules Simulation Laboratories Availability

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Optimal Resource Allocation for Cognitive Radio networks with Imperfect Spectrum Sensing

Optimal Resource Allocation for Cognitive Radio Networks wit...

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IEEE Conference on Vehicular Technology (VTC)

作者： Kejian Wu Wei Wang Haiyan Luo Guanding Yu Zhaoyang Zhang Department of Information Science and Electronic Engineering Key Laboratory of Integrate Information Network Technology University of Zhejiang Hangzhou China Key Laboratory of Information Coding and Transmission Southwest Jiaotong University Chengdu China

关键词： Resource management Cognitive radio Laboratories Delay estimation Bipartite graph Availability Measurement Switches Information science Computer errors

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