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Toplam kayıt 33, listelenen: 21-30
Enhancing physical-layer security in wireless communications using signal space diversity
(Institute of Electrical and Electronics Engineers Inc., 2016)
In this paper, we enhance the security of OFDM systems in frequency selective fading channels using signal space diversity. In rich multipath environments, spatially separated channels are independent to each other. Hence, ...
In vivo wireless channel modeling
(Institution of Engineering and Technology, 2016)
Technological advances in biomedical engineering have significantly improved the quality of life and increased the life expectancy of many people. In recent years, there has been increased interest inwireless body area ...
Secure multiple-users transmission using multi-path directional modulation
(Institute of Engineers and Everyone Else, 2016)
This work introduces a physical-layer secure multiple-users communication scheme. Our scheme employs the multi-path nature of the wireless channel to provide a different secure communication link for each of the legitimate ...
Suppressing alignment: Joint PAPR and out-of-band power leakage reduction for OFDM-based systems
(Ieee-Inst Electrical Electronics Engineers Inc, 2016)
Orthogonal frequency division multiplexing (OFDM) inherently suffers from two major drawbacks: high out-of-band (OOB) power leakage and high peak-to-average power ratio (PAPR). This paper proposes a novel approach called ...
NACRP: A connectivity protocol for star topology wireless sensor networks
(Ieee-Inst Electrical Electronics Engineers Inc, 2016)
Wireless sensor networks (WSNs) are an ever growing field of applications and one constituent of the future Internet-of-Things (IoT). In this work, we investigate star topology sensor networks compliant with the recent ...
High-gain pattern reconfigurable MIMO antenna array for wireless handheld terminals
(The Institute of Electrical and Electronics Engineers, 2016)
The analysis, design, experimental development, and test results of a high-gain pattern reconfigurable antenna array are presented. Unlike traditional phased arrays, the proposed array has a compressed footprint making it ...
Time-domain iterative multiregion technique for 3-D scattering and radiation problems
(Ieee-Inst Electrical Electronics Engineers Inc, 2016)
Integration of the finite-difference time-domain (FDTD) method into the iterative multiregion (IMR) technique, an iterative approach used to solve large-scale electromagnetic scattering and radiation problems, is presented ...
Extending depth of field and dynamic range from differently focused and exposed images
(Springer, 2016)
Focus stacking and high dynamic range (HDR) imaging are two paradigms of computational photography. Focus stacking aims to produce an image with greater depth of field (DOF) from a set of images taken with different focus ...
IEEE Standard 802.19.1 for TV white space coexis tence
(Institute of Electrical and Electronics Engineers Inc., 2016)
Understanding of the need to provide coexistence solutions for different cognitive radio systems operating in white space frequency bands, in December 2009 the IEEE 802 Executive Committee started project 802.19.1 to develop ...
Blind super-resolution restoration with frame-by-frame nonparametric blur estimation
(Springer, 2016)
In this paper, we investigate super-resolution image restoration from multiple images, which are possibly degraded with large nonparametric motion blur. The blur kernel for each input image is separately estimated. This ...