Results 11 to 20 of about 239,473 (251)

Orthogonal Space Time Block Coding for Spatial Pulse Position Modulation

open access: yesGuangtongxin yanjiu, 2021
The system performance of Spatial Pulse Position Modulation (SPPM) is poor in turbulent channels. In order to solve this problem, the bit complement orthogonal space time Block Coding for Spatial Pulse Position Modulation (BCOSTBCSPPM) is proposed by ...
Zhong-yang MAO   +5 more
doaj   +1 more source

Space-time network coding [PDF]

open access: yesIEEE Transactions on Signal Processing, 2011
Traditional cooperative communications can improve communication reliability. However, transmissions from multiple relay nodes are challenging in practice. Single transmissions in time-division multiple-access (TDMA) manner cause large transmission delay, but simultaneous transmissions from two or more nodes using frequency-division multiple access ...
Hung-Quoc Lai, K. J. Ray Liu
openaire   +1 more source

Blind Space Time Block Coding Categorization over AF Relaying Broadcasts

open access: yesApplied Sciences, 2023
Categorization of space time block code (STBC) signals has become widely acknowledged as a crucial foundational mechanism for creating intelligent wireless transmissions in both the governmental and business sectors.
Mohamed Marey, Hala Mostafa
doaj   +1 more source

Joint time-frequency analysis on space-time-coding digital metasurfaces

open access: yesJPhys Photonics, 2022
Space-time and time-varying metastructures have attracted a lot of research interest in recent years. On the other hand, digital programmable metasurfaces have also gained great attention owing to their powerful capabilities in controlling ...
Xiao Qing Chen   +5 more
doaj   +1 more source

High-Resolution and Wide-Swath SAR Imaging with Space–Time Coding Array

open access: yesRemote Sensing, 2023
To achieve high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) images, this paper focuses on resolving the problem of separating range-ambiguous echoes with the space–time coding (STC) array.
Kun Yu, Shengqi Zhu, Lan Lan, Biao Yang
doaj   +1 more source

Enhancing MIMO Capacity Through Space-Time Coding: Analysis And Design Framework

open access: yesJournal of Informatics and Web Engineering, 2023
Space-time coding combines time and space to generate codewords, transmitting signals in both time and space domains. This leads to not only diversity and coding gains but also reduces the impact of multipath fading, resulting in high spectral ...
Lijun Han   +3 more
doaj   +1 more source

Layered Space-Time Index Coding [PDF]

open access: yesIEEE Transactions on Information Theory, 2018
Multicasting $K$ independent messages via multiple-input multiple-output (MIMO) channels to multiple users where each user already has a subset of messages as side information is studied. A general framework of constructing layered space-time index coding (LSTIC) from a large class of space-time block codes (STBC), including perfect STBC, is proposed ...
Yu-Chih Huang   +3 more
openaire   +3 more sources

Cooperative space-time codes with network coding [PDF]

open access: yesEURASIP Journal on Wireless Communications and Networking, 2012
Because of the gains like diversity, throughput, and the coverage extension provided by the multiple-input multiple-out (MIMO) systems, it has been part of the various wireless communications standards. However, to reap the benefits offered by MIMO systems in size-constrained nodes, used in wireless communications, has been a challenging issue.
Gordhan Das Menghwar   +4 more
openaire   +1 more source

Space-Time/Frequency Line Coded OFDM: System Design and Practical Implementation

open access: yesIEEE Access, 2019
In this paper, we investigate a class of new multiple-input multiple-output (MIMO) transmission schemes, dubbed space time line code (STLC), in the context of different mobility situations.
Chaowu Wu   +5 more
doaj   +1 more source

Space–Time Codes From Sum-Rank Codes [PDF]

open access: yesIEEE Transactions on Information Theory, 2022
Just as rank-metric or Gabidulin codes may be used to construct rate-diversity tradeoff optimal space-time codes, a recently introduced generalization for the sum-rank metric -- linearized Reed-Solomon codes -- accomplishes the same in the case of multiple fading blocks.
Mohannad Shehadeh, Frank R. Kschischang
openaire   +2 more sources

Home - About - Disclaimer - Privacy