Results 51 to 60 of about 211 (168)

TRELLIS CODED MAPPING FOR PEAK TO AVERAGE POWER REDUCTION IN SFBC MIMO OFDM SYSTEMS

open access: yesICTACT Journal on Communication Technology, 2016
Space frequency block code orthogonal frequency division multiplexing (SFBC-OFDM) systems has inherit drawbacks of high peak-to average power ratio (PAPR) signals, and constellation shaping with trellis is a promising approach for reducing both peak ...
P. N. Kota, A. N. Gaikwad, B. P. Patil
doaj  

A Low-Complexity Approach to Space-Time Coding for Multipath Fading Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
We consider a single-carrier multiple-input single-output (MISO) wireless system where the transmitter is equipped with multiple antennas and the receiver has a single antenna.
Kobayashi Mari, Caire Giuseppe
doaj   +2 more sources

Silver Space-Time Trellis Coded Modulation

open access: yes, 2008
This work was supported by the STREP project No. IST-026905 (MASCOT) within the FP6th of the European Commission, and, for EB, also by the Spanish Ministery of Education and Science under Project TEC2006-01428/TCM.
Biglieri, Ezio   +2 more
openaire   +4 more sources

Performance of OFDM: FSO Communication System with Hybrid Channel Codes during Weak Turbulence

open access: yesJournal of Computer Networks and Communications, 2019
The performance of orthogonal frequency division multiplexing- (OFDM-) based free-space optics (FSO) depends on various parameters such as number of subcarriers, base band modulation, nature of laser beam, turbulence modelling, and much more.
Ritu Gupta   +2 more
doaj   +1 more source

Helper Data Schemes for Coded Modulation and Shaping in Physical Unclonable Functions

open access: yesIEEE Open Journal of the Communications Society
We consider the generation and utilization of helper data for physical unclonable functions (PUFs) that provide real-valued, Gaussian distributed readout symbols.
Robert F. H. Fischer
doaj   +1 more source

New Trellis Code Design for Spatial Modulation

open access: yesIEEE Transactions on Wireless Communications, 2011
Spatial modulation (SM), in which multiple antennas are used to convey information besides the conventional M-ary signal constellations, is a new multiple-input multiple-output (MIMO) transmission technique, which has recently been proposed as an alternative to V-BLAST (vertical Bell Labs layered space-time).
Panayırcı, Erdal   +4 more
openaire   +1 more source

Zernike Moment-Based Spatial Image Steganography Resisting Scaling Attack and Statistic Detection

open access: yesIEEE Access, 2019
The mainstream adaptive steganography algorithm is difficult to resist scaling attack, and the anti-detection performance of the algorithm based on quantization index modulation is not high enough.
Yue Zhang   +4 more
doaj   +1 more source

Inter-Multilevel Super-Orthogonal Space-Time Coding Scheme for Reliable ZigBee-Based IoMT Communications. [PDF]

open access: yesSensors (Basel), 2022
Ma SC   +7 more
europepmc   +1 more source

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