Results 61 to 70 of about 1,433 (285)

Exploiting Uplink NOMA to Improve Sum Secrecy Throughput in IoT Networks

Wireless Communications and Mobile Computing, 2018
This paper exploits nonorthogonal multiple access (NOMA) to enhance the uplink secure transmission in Internet of Things (IoT) networks. Considering the different intercept ability of eavesdroppers (Eve), secrecy performances of both strong and weak Eve wiretap scenarios have been investigated. In strong Eve wiretap scenario (SWS), Eve is assumed to be
Zhongwu Xiang, Weiwei Yang 0001, Yueming Cai, Yunpeng Cheng, Heng Wu, Meng Wang   +5 more
openaire   +1 more source

Secrecy analysis in SWIPT systems over generalized-K fading channels

, 2019
In this letter, we investigate the secrecy performance of the simultaneous wireless information and power transfer (SWIPT) system over generalized-K fading channels.
Zhao, Hui, Alouini, Mohamed-Slim, Wang, Zhijie, Wang, Shuai, Zhang, Jiankang   +4 more
core   +2 more sources

Secrecy & Rate Adaptation for secure HARQ protocols

, 2013
International audienceThis paper is dedicated to the study of HARQ protocols under a secrecy constraint. An encoder sends information to a legitimate decoder while keeping it secret from the eavesdrop-per. Our objective is to provide a coding scheme that
Labeau, Fabrice, Fabrice Labeau, Le Treust, Maël, Mael Le Treust, Leszek Szczecinski, Szczecinski, Leszek   +5 more
core   +1 more source

Large‐Scale and Cost‐Effective Fabrication of Ultra‐Thin, Biodegradable Microelectrode Arrays and Pressure Sensors Using Laser Micromachining

Advanced Materials Technologies, EarlyView.
A mask‐free and cost‐effective UV‐pico‐second laser‐based microfabrication method is proposed to fabricate large‐area biodegradable microelectrode arrays and pressure sensors. These devices demonstrate low impedance, good conformability, excellent biocompatibility, and rapid degradation, providing a new route for next‐generation transient electronics ...
Bhavani Prasad Yalagala, Asfand Tanwear, María Cerezo‐Sánchez, Hossein Parvizi, Morteza Amjadi, Hadi Heidari   +5 more
wiley   +1 more source

Secure Transmission for Differential Quadrature Spatial Modulation With Artificial Noise

IEEE Access, 2019
In this paper, we investigate the secure transmission for differential quadrature spatial modulation (DQSM) with artificial noise (AN) in multiple-input single-output wiretap networks, where a cooperative jammer helps the secure transmission between ...
Yong Wang, Tao Zhang, Weiwei Yang, Jibin Guo, Yongxiang Liu, Xiaohui Shang   +5 more
doaj   +1 more source

On the Achievable Secrecy Throughput of Block Fading Channels with No Channel State Information at Transmitter [PDF]

2007 41st Annual Conference on Information Sciences and Systems, 2007
We study the block fading wire-tap channel, where a transmitter sends confidential messages to a legitimate receiver over a block fading channel in the presence of an eavesdropper, which listens to the transmission through another independent block fading channel.
Xiaojun Tang 0001, Ruoheng Liu, Predrag Spasojevic   +2 more
openaire   +1 more source

Improving Secrecy Performance of a Wirelessly Powered network [PDF]

, 2017
This paper considers the secrecy communication of a wirelessly powered network, where an energy constrained legitimate transmitter (Alice) sends message to a legitimate receiver (Bob) with the energy harvested from a dedicated power beacon (PB), while an
Dai, Xuchu, Zhiguo Ding, Chen, Zhuo, Ding, Zhiguo, Zhuo Chen, Lucinda Hadley, Hadley, Lucinda, Xuchu Dai   +7 more
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Additive Manufacturing of Patient‐Specific Intracranial Aneurysm Cell Culture Models

Advanced Materials Technologies, EarlyView.
Patient‐specific intracranial aneurysm models were fabricated using chocolate moulding, 3D printed water‐soluble cores, and direct resin 3D printing. Moulding PDMS around sacrificial cores made of chocolate or 3D printed water‐soluble resin yielded accurate, expandable, and endothelializable models that outperformed resin‐based approaches.
Chloe M. de Nys, Jaimee‐Lee Wood, James I. Novak, Danilo Carluccio, Craig D. Winter, Ashley R. Murphy, Mark C. Allenby   +6 more
wiley   +1 more source

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