Results 21 to 30 of about 590 (182)

Secrecy Performance Analysis of Energy Harvesting Untrusted Relay Networks with Hardware Impairments

open access: yesInternational Journal of Distributed Sensor Networks
In this work, we focus on the issue of secure communication in energy harvesting untrusted relay networks taking into account the impact of hardware impairments, where an energy-constrained relay, powered by received radio frequency signals, attempts to ...
Dechuan Chen   +5 more
doaj   +2 more sources

Secure Communication via a Wireless Energy Harvesting Untrusted Relay [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2017
The paper has been submitted for possible journal publication.
Sanket S Kalamkar, Adrish Banerjee
exaly   +3 more sources

Joint optimization of beamforming and power allocation for DAJ‐based untrusted relay networks

open access: yesETRI Journal, 2018
Destination‐assisted jamming (DAJ) is usually used to protect confidential information against untrusted relays and eavesdroppers in wireless networks. In this paper, a DAJ‐based untrusted relay network with multiple antennas installed is presented.
Rugui Yao   +4 more
doaj   +2 more sources

Cooperative Jamming-Based Physical-Layer Group Secret and Private Key Generation [PDF]

open access: yesEntropy
This paper explores physical layer group key generation in wireless relay networks with a star topology. In this setup, the relay node plays the role of either a trusted or untrusted central node, while one legitimate node (Alice) acts as the reference ...
Shiming Fu, Tong Ling, Jun Yang, Yong Li
doaj   +2 more sources

Securing Relay Networks with Artificial Noise: An Error Performance-Based Approach

open access: yesEntropy, 2017
We apply the concept of artificial and controlled interference in a two-hop relay network with an untrusted relay, aiming at enhancing the wireless communication secrecy between the source and the destination node.
Ying Liu   +3 more
doaj   +2 more sources

Distributed Matching Algorithms: Maximizing Secrecy in the Presence of Untrusted Relay [PDF]

open access: yesRadioengineering, 2017
In this paper, we propose a secrecy sum-rate maximization based matching algorithm between primary transmitters and secondary cooperative jammers in the presence of an eavesdropper.
B. Ali   +3 more
doaj   +2 more sources

Weak Secrecy in the Multiway Untrusted Relay Channel With Compute-and-Forward [PDF]

open access: yesIEEE Transactions on Information Forensics and Security, 2015
We investigate the problem of secure communications in a Gaussian multi-way relay channel applying the compute-and-forward scheme using nested lattice codes. All nodes employ half-duplex operation and can exchange confidential messages only via an untrusted relay. The relay is assumed to be honest but curious, i.e., an eavesdropper that conforms to the
Johannes Richter   +3 more
openaire   +3 more sources

Physical Layer Security in an Untrusted Energy Harvesting Relay Network [PDF]

open access: yesIEEE Access, 2019
The security performance in an amplify-and-forward dual-hop untrusted relay network is considered. It is assumed that the source and multiple destinations are equipped with multiple antennas, and the information transmission is aided by a single-antenna ...
Hui Shi   +5 more
doaj   +2 more sources

Joint power control for untrusted relay cooperation-based confidential communication [PDF]

open access: yesTongxin xuebao, 2014
The scenario that multiple cell-edge mobile stations (MS) all without direct-links to the base station (BS) but have confidential messages in the uplink in the presence of untrusted relay (UR) cooperation was considered.In order to implement the secure ...
Wen-jiang FENG   +3 more
doaj   +4 more sources

Joint Power Allocation at the Base Station and the Relay for Untrusted Relay Cooperation OFDMA Network [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2015
The secure communication that multiple OFDMA-based cell-edge mobile stations (MS) can only transmit confidential messages to base station (BS) through an untrusted intermediate relay (UR) is discussed.
Weiheng Jiang, Wenjiang Feng
doaj   +2 more sources

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