Results 71 to 80 of about 1,153 (147)

Flexible Multi-Group Single-Carrier Modulation: Optimal Subcarrier Grouping and Rate Maximization

, 2017
Orthogonal frequency division multiplexing (OFDM) and single-carrier frequency domain equalization (SC-FDE) are two commonly adopted modulation schemes for frequency-selective channels. Compared to SC-FDE, OFDM generally achieves higher data rate, but at
Lie, Joni Polili, Yang, Yifei, Zhang, Rui, Zhang, Shuowen   +3 more
core   +1 more source

Log-Domain Current-mode Quadrature Sinusoidal Oscillator [PDF]

, 2011
A log-domain current-mode quadrature sinusoidal oscillator based on lossless integrators is presented. The circuit is a direct realization of a first-order differential equation for obtaining the lossy and lossless integrators.
Prapakorn, Nattawit, Prommee, Pipat, Swamy, M. N. S.   +2 more
core   +1 more source

On Channel Transforms to Enhance Reciprocity and Quantization in Physical-Layer Secret Key Generation

IEEE Access
Ensuring reliable and secure communications in the increasingly pervasive beyond $5{^{\text {th}}}$ generation (B5G) wireless networks is one of the key research challenges.
Ghalib Hussain, Syed Junaid Nawaz, Shurjeel Wyne, Mohammad N. Patwary   +3 more
doaj   +1 more source

Cognitive Information Processing [PDF]

, 1983
Contains reports on four research projects.Associated Press (Grant)Providence Gravure, Inc ...
Schreiber, William F., Troxel, Donald E.
core  

THE REDUCTION OF PAPR IN OFDM BY USING NEW COMPANDING TRANSFORM

International Journal of Power System Operation and Energy Management, 2014
The main drawback of the OFDM is its high peak to average power ratio(PAPR).There are several PAPR reduction techniques. Among the various PAPR reduction techniques, companding transform is attractive for its simplicity and effectiveness. This paper proposes a new companding algorithm.
T. NAGARAJU, K. RAMANAIDU
openaire   +1 more source

Cognitive Information Processing [PDF]

, 1985
Contains goals, background, research activities on one research project and reports on three research projects.Center for Advanced Television StudiesAmerican Broadcasting CompanyAmpex CorporationColumbia Broadcasting SystemsHarris CorporationHome Box ...
Allen, Jonathan, Benton, S., Bernstein, J., Cassereau, Philippe M., Chan, David S. K., Chao, Yao-Ming, Chen, T. M., Christian, Kevin G., Clemens, D., Corteselli, S., Du, Qiding, Fortino, R., Garcia, Armando, Hamilton, G., Hinman, Brian L., Holzbach, M., Hsu, S., Huang, Shiao-Li, Isnardi, M., Khan, Malik M. A., Kirkland, Anne M., Krause, E., Lang, Jeffrey H., Lee, C., Lim, J., Lynn, C. W., MacDonald, H., Malvar, Henrique S., Marshall, S., Martinez, D., Pan, D., Pian, D., Picard, Leonard, Prasanna, G. N. Srinivasa, Sara, Jason, Saussy, G., Schott, Jean-Pierre, Schreiber, William F., Staelin, David H., Szabo, Bernard I., Tom, Adam S., Troxel, Donald E., Ulichney, R., Vachon, G., Vinciguerra, Ralph, Wacks, K. P., Wang, J., Ward, J.   +47 more
core  

A Novel Hybrid Precoding-Companding Technique for Peak-to-Average Power Ratio Reduction in 5G and beyond. [PDF]

Sensors (Basel), 2021
Mounir M, El Mashade MB, Berra S, Gaba GS, Masud M.   +4 more
europepmc   +1 more source

Intelligent OFDM telecommunication system. Part 1. Model of complex and quaternion systems [PDF]

, 2019
In this paper, we aim to investigate the superiority and practicability of many-parameter transforms (MPTs) from the physical layer security (PHY-LS) perspective. We propose novel Intelligent OFDM-telecommunication systems based on complex and quaternion
Labunets, V. G., Ostheimer, E. V.
core  

Cognitive Information Processing [PDF]

, 1982
Contains reports on five research projects.Associated Press (Grant)Taylor Publishing Company (Grant)Providence Gravure, Inc ...
Schreiber, William F., Troxel, Donald E.
core  

Underlying Security Transmission Design for Orthogonal Time Frequency Space (OTFS) Modulation. [PDF]

Sensors (Basel), 2022
Liang W, Liu X, Shi J, Li L, Hu J.
europepmc   +1 more source