Results 51 to 60 of about 696 (161)
Secrecy performance analysis on cooperative CR-NOMA network
Tongxin xuebao, 2020 In order to improve the secrecy performance of communication system and make efficient use of limited spectrum,overlay cognitive radio (OCR) technology was combined with non-orthogonal multiple access (NOMA) technology and the communication model was ...
Zhen YANG, Mengyao ZHU, Youhong FENG
doaj
Rate Adaption for Secure HARQ-CC System with Multiple Eavesdroppers
Entropy, 2020 In this paper, we studied the secure transmission of a hybrid automatic repeat request with chase combining (HARQ-CC) system, under the existence of multiple eavesdroppers and limited latency.
Yue Wu +4 more
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Secure Transmission in mmWave Wiretap Channels: On Sector Guard Zone and Blockages
Entropy, 2019 Millimeter-wave (mmWave) communication is one of the key enabling technologies for fifth generation (5G) mobile networks. In this paper, we study the problem of secure communication in a mmWave wiretap network, where directional beamforming and link ...
Yi Song +4 more
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Physical Layer Security Using Two-Path Successive Relaying
Sensors, 2016 Relaying is one of the useful techniques to enhance wireless physical-layer security. Existing literature shows that employing full-duplex relay instead of conventional half-duplex relay improves secrecy capacity and secrecy outage probability, but this ...
Qian Yu Liau, Chee Yen Leow, Zhiguo Ding
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On Physical Layer Security Over the Fisher-Snedecor
IEEE Access, 2018 In this paper, we initially investigate the physical layer security over device-to-device communications, where the channel is modeled from the Fisher-Snedecor .T distribution.
Long Kong, Georges Kaddoum
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Security–reliability tradeoff analysis of untrusted energy harvesting relay networks
International Journal of Distributed Sensor Networks, 2018 We investigate secure communications in untrusted energy harvesting relay networks, where the amplify-and-forward relay is an energy constrained node powered by the received radio frequency signals, and try to unauthorizedly decode the confidential ...
Dechuan Chen +4 more
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IEEE Access, 2016 We investigate the secrecy outage performance of spectrum sharing multiple-input multiple-output networks using generalized transmit antenna selection with maximal ratio combining over Nakagami-m channels.
Yuzhen Huang +4 more
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Physical layer security of NOMA-D2D cooperative wireless system
Dianxin kexue, 2022 Aiming at the physical layer security (PLS) application requirement of massive user equipments access in the future, the PLS model combining with non-orthogonal multiple access (NOMA), device-to-device (D2D) and relay cooperation was proposed.The model ...
Yifan DING, Guangqiu LI, Hui LI
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Secure Transmission in mmWave NOMA Networks With Cognitive Power Allocation
IEEE Access, 2019 Millimeter wave (mmWave) and non-orthogonal multiple access (NOMA) are two key technologies for future wireless networks. In this paper, secure communication in mmWave NOMA networks based on cognitive power allocation scheme is studied by preferentially ...
Yi Song +4 more
doaj +1 more source
Outage probability of selective decode and forward relaying with secrecy constraints
CoRR, 2011 We study the outage probability of opportunistic relay selection in decode-and-forward relaying with secrecy constraints. We derive the closed-form expression for the outage probability. Based on the analytical result, the asymptotic performance is then investigated. The accuracy of our performance analysis is verified by the simulation results.
Xiaojun Sun, Chunming Zhao
openaire +2 more sources