Results 21 to 30 of about 118,006 (248)
Super-Activation as a Unique Feature of Secure Communication in Malicious Environments
Information, 2016 The wiretap channel models secure communication between two users in the presence of an eavesdropper who must be kept ignorant of transmitted messages.
Rafael F. Schaefer +2 more
doaj +1 more source
Experimental quantum cryptography scheme based on orthogonal states
, 2010 Since, in general, non-orthogonal states cannot be cloned, any eavesdropping attempt in a Quantum Communication scheme using non-orthogonal states as carriers of information introduces some errors in the transmission, leading to the possibility of ...
Alessio Avella +7 more
core +1 more source
Secure Massive MIMO Transmission in the Presence of an Active Eavesdropper [PDF]
, 2015 In this paper, we investigate secure and reliable transmission strategies for multi-cell multi-user massive multiple-input multiple-output (MIMO) systems in the presence of an active eavesdropper.
Caire, Giuseppe +4 more
core +3 more sources
Information Transmission using the Nonlinear Fourier Transform, Part I: Mathematical Tools
, 2014 The nonlinear Fourier transform (NFT), a powerful tool in soliton theory and exactly solvable models, is a method for solving integrable partial differential equations governing wave propagation in certain nonlinear media.
Kschischang, Frank R. +1 more
core +1 more source
Data Detection and Code Channel Allocation for Frequency-Domain Spread ACO-OFDM Systems Over Indoor Diffuse Wireless Channels [PDF]
, 2014 Future optical wireless communication systems promise to provide high-speed data transmission in indoor diffuse environments. This paper considers frequency-domain spread asymmetrically clipped optical orthogonal frequency-division multiplexing (ACOOFDM)
Chen, Ming +4 more
core +1 more source
Orthogonal Chirp Division Multiplexing
, 2016 Chirp waveform plays a significant role in radar and communication systems for its ability of pulse compression and spread spectrum. This paper presents a principle of orthogonally multiplexing a bank of linear chirp waveforms within the same bandwidth ...
Ouyang, Xing, Zhao, Jian
core +1 more source
Asymptotically optimal cooperative wireless networks with reduced signaling complexity [PDF]
, 2007 This paper considers an orthogonal amplify-and-forward (OAF) protocol for cooperative relay communication over Rayleigh-fading channels in which the intermediate relays are permitted to linearly transform the received signal and where the source and ...
Elia, Petros +2 more
core +2 more sources
, 2007 Cooperative transmission is an emerging communication technique that takes advantages of the broadcast nature of wireless channels. However, due to low spectral efficiency and the requirement of orthogonal channels, its potential for use in future ...
Han, Zhu, Poor, H. Vincent, Zhang, Xin
core +1 more source
Key Generation Scheme Based on Wireless Multipath Channel Parameter [PDF]
Jisuanji gongcheng, 2018 Because of the broadcast characteristics of wirless network,in the process of signal transmission,information leakage often occurs,so that there are hidden dangers of information security.In view of this,an Orthogonal Frequency Division Multiplexing(OFDM)
ZHANG Xinmi,XU Ming
doaj
Capacity Gain from Two-Transmitter and Two-Receiver Cooperation [PDF]
, 2007 Capacity improvement from transmitter and receiver cooperation is investigated in a two-transmitter, two-receiver network with phase fading and full channel state information available at all terminals.
Andrea J. Goldsmith +4 more
core +3 more sources