Results 81 to 90 of about 508,076 (233)

Delay-Tolerant Decode-and-Forward Based Cooperative Communication over Ricean Channels

open access: yes, 2010
International audienceIn this paper, we propose a TDMA based simple transmission scheme, which overcomes the effect of the delays caused by the poor synchronization of the relaying nodes over Ricean channels.
Bhatnagar, Manav R.   +2 more
core   +3 more sources

Application of antenna selection technology in eight-beam STBC-BF transmit scheme

open access: yesDianxin kexue, 2017
An antenna selection scheme of space-time block coding combined with eight-beamforming (STBC-BF) in massive MIMO system was proposed.Transmit symbols were coded by space-time block coder,then the coded symbols were weighted by antenna array form eight ...
Man WANG, Jinlong ZHAN
doaj   +2 more sources

Novel Feedback Calculation Technique for Improved Transmit Scheme [PDF]

open access: yes, 2012
Extended balanced space-time block coding (EBSTBC) is able to achieve large coding gain and guarantee full diversity for any number of transmit antennas. Performance of the EBSTBC has been improved with improved transmit scheme (ITS) which is combination
Eksim, A., Murat, E.
core   +1 more source

A STBC-BF Transmit Scheme in Massive MIMO System

open access: yesDianxin kexue, 2015
A STBC-BF transmit scheme in massive MIMO system was proposed.Firstly,the signal was space-time block coded,then passed into the eigen-beamformers,respectively.At the receiver,the space-time decoding was performed on two orthogonal beams.The diversity ...
Tao Kang, Jinlong Zhan
doaj   +2 more sources

Low-Complexity Decoding of Block Turbo-Coded System with Antenna Diversity

open access: yesEURASIP Journal on Advances in Signal Processing, 2003
The goal of this paper is to reduce the decoding complexity of space-time block turbo-coded system with low performance degradation. Two block turbo-coded systems with antenna diversity are considered.
Chen Yanni, Parhi Keshab K
doaj   +1 more source

Multimedia transmission over wireless space-time-frequency coded OFDM [PDF]

open access: yes, 2006
The transmission of multimedia data over wireless systems generally require network devices designed with a high communication bandwidth, power, and processing resources.
Athanasiadis, T, Hussain, Z, Lin, K
core  

Generalized ABBA Space-Time Block Codes

open access: yes, 2005
Linear space-time block codes (STBCs) of unitary rate and full diversity, systematically constructed over arbitrary constellations for any number of transmit antennas are introduced. The codes are obtained by generalizing the existing ABBA STBCs, a.k.a quasi-orthogonal STBCs (QO-STBCs). Furthermore, a fully orthogonal (symbol-by-symbol) decoder for the
openaire   +2 more sources

Blind tracking based on Monte Carlo algorithm over MIMO fast time-varying channels

open access: yesTongxin xuebao, 2007
The Monte Carlo algorithm was applied for time-varying channel tracking in communication system and in multi-antenna channels with space time block coding(STBC).The algorithm was compared with Kalman filtering method under the same condition,the tracking
JIANG Ming-yan, YUAN Dong-feng
doaj   +2 more sources

Single-RF Index Shift Keying Aided Differential Space–Time Block Coding

open access: yesIEEE Transactions on Signal Processing, 2018
Chao Xu   +4 more
semanticscholar   +1 more source

Novel antenna selection algorithm for STBC and VBLAST hybrid coding systems

open access: yesTongxin xuebao, 2009
Multiple-input multiple-output (MIMO) systems improve the bit error rate (BER) performance, meanwhile,in order to reduce the impact to system capacity, a novel antenna selection algorithm for space-time block coding (STBC) and vertical Bell laboratories ...
LI Ren   +3 more
doaj   +2 more sources

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