Results 11 to 20 of about 1,047,633 (284)

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

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 efficiency.
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

Space–Time Codes From Structured Lattices [PDF]

open access: yesIEEE Transactions on Information Theory, 2009
25 pages, Submitted to IEEE Transactions on Information ...
Kumar, K. Raj, Caire, Giuseppe
openaire   +2 more sources

A coding scheme for wireless networks with multiple antenna nodes and no channel information [PDF]

open access: yes, 2007
In this paper, we present a coding strategy for wireless relay networks where the relay nodes are small devices with few resources, while the source and sink are equipped with multiple antennas to increase the transmission rate.
Hassibi, Babak, Oggier, Frédérique
core   +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 coding for UMTS. Performance evaluation in combination with convolutional and turbo coding [PDF]

open access: yes, 2000
Space-time codes provide both diversity and coding gain when using multiple transmit antennas to increase spectral efficiency over wireless communications systems.
Gaspa Maynou, Roger   +1 more
core   +1 more source

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