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A Low Complex Modified Golden Code in a Cooperative Relaying System
2014
International Journal of Computer Networks & Communications
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Concerning with the physical layer issues, in this paper it is focussed on with providing a better space time block coding (STBC) scheme and incorporating it in the cooperative relaying nodes to upgrade ...
The cooperative protocol strategy considered in the relay node is Decode and forward (DF) protocol. ...
Recently, a new technique which exploits the advantages of aforementioned schemes through MIMO techniques and cooperation (i.e., combining space time block coding and cooperative relaying) attracts a widespread ...
doi:10.5121/ijcnc.2014.6106
fatcat:lutjygtmyvhojnlhiackzvsh6y
A Survey on Space-Time Turbo Codes
[article]
2010
arXiv
pre-print
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This proposed paper provides an over view on various techniques used for the design of space-time turbo codes. ...
Space-time coding (STC) is a communications technique for wireless systems that inhabit multiple transmit antennas and single or multiple receive antennas. ...
Unitary space-time modulation scheme was proposed by Hochwald et al. in [22] . They proposed a signaling scheme, unitary space-time modulation, for multiple-antenna communication links. ...
arXiv:1004.1707v1
fatcat:3dz3ojgqm5cptbtnzpqfwjapny
Iterative Detection Assisted Cooperative Vehicular Ad Hoc Networking Using Differential Linear Dispersion Coding
2009
2009 IEEE 70th Vehicular Technology Conference Fall
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More specifically, DLDC encoding is employed by the source transmitter for broadcasting the source information to the relays, while an LDC-based amplify-and-forward relaying scheme is used at the relays ...
The proposed technique allows each relay to decide, whether it joins the cooperating cluster without any negotiations with the other nodes. ...
Recently, a sophisticated differential distributed STC scheme was developed [13] , which was motivated by the unitary differential space-time modulation philosophy [4] and by the LDC-based relaying ...
doi:10.1109/vetecf.2009.5379005
dblp:conf/vtc/SugiuraH09
fatcat:6g4qk2m3urcgroh67qroicnodm
Multiple-Symbol Joint Signal Processing for Differentially Encoded Single- and Multi-Carrier Communications: Principles, Designs and Applications
2014
IEEE Communications Surveys and Tutorials
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for future multiple-antenna aided systems, where estimating all the links may become unrealistic, especially in high-speed environments. ...
For example, an increased robustness against rapid channel fluctuation, improved flexibility in the system's performancecomplexity compromise as well as a reduced performance loss is achieved in comparison ...
[43] Hochwald et. al. 2000
Introduced the family of differential unitary
[44] Hughes 2000
space-time modulation (DUSTM). ...
doi:10.1109/surv.2013.081313.00218
fatcat:lybolh7wtrfpdje2eultynvow4
Kronecker Recurrent Units
[article]
2017
arXiv
pre-print
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It overcomes the ill-conditioning of the recurrent matrix by enforcing soft unitary constraints on the factors. ...
The former increases the sample complexity of learning and the training time. The latter causes the vanishing and exploding gradient problem. ...
Later, this technique was adopted by other models such as the Gated Recurrent Units (GRU) (Chung et al., 2015) and the Highway networks (Srivastava et al., 2015) for recurrent and feed-forward neural ...
arXiv:1705.10142v7
fatcat:hz3sopkmzfaotjdxh53ec3e5li
Differential space-time turbo codes
2003
IEEE Transactions on Information Theory
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Serial concatenation of simple error control codes and differential space-time modulation is considered. ...
It is demonstrated that the inner space-time code provides soft training symbols from periodically inserted training symbols. ...
Typically, these codes are coordinated space-time block codes whose symbols are unitary matrices. Such codes may also be used as part of differential space-time modulation schemes. ...
doi:10.1109/tit.2003.815818
fatcat:ocqigagvzfabbluo6ugeoqoani
Iterative Decision Feedback Equalization and Decoding for Rotated Multidimensional Constellations in Block Fading Channels
2009
VTC Spring 2009 - IEEE 69th Vehicular Technology Conference
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In this paper, we propose a reduced-complexity iterative receiver structure operating on a block basis for coded modulation schemes with rotated constellations. ...
The proposed detector is based on iterative forward and backward filtering followed by a channel decoder that uses a priori log-likelihood ratios (LLR) of coded symbols. ...
ITERATIVE DECISION FEEDBACK EQUALIZATION (DFE) FOR ROTATED CONSTELLATIONS We consider iterative space-time decoder with soft decision feedback in this paper. ...
doi:10.1109/vetecs.2009.5073623
dblp:conf/vtc/GuvensenY09
fatcat:6twxqybmcvgithhqsy62h52xg4
Leveraging AI in Photonics and Beyond
2022
Photonics
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Forward modeling and inverse design using AI can achieve high efficiency and accuracy for photonics components. ...
Artificial intelligence (AI) techniques have been spreading in most scientific areas and have become a heated focus in photonics research in recent years. ...
AI for Computational Electromagnetic Solvers: Forward and Inverse The three most popular computational electromagnetic methods for solving forward electromagnetic problems are Finite-difference time-domain ...
doi:10.3390/photonics9020075
fatcat:pkomp66omrg6hc7ydm7byetjua
Implementation and Complexity Evaluation of Packet Combining for Multi-Code Transmission over Multi-Antenna Broadband Channel
2008
2008 International Wireless Communications and Mobile Computing Conference
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Two packet combining techniques are introduced. The first technique performs packet combining jointly with turbo equalization, the second one performs the combination jointly with demapping. ...
In this paper, a very low complexity packet combining approach for single user multi-code CDMA transmission over a broadband multiple input multiple output (MIMO) channel is presented. ...
LOW-COMPLEXITY PACKET COMBINING WITH SPACE-TIME FREQUENCY DOMAIN TURBO EQUALIZATION In this section, two low complexity packet combining techniques are introduced. ...
doi:10.1109/iwcmc.2008.174
fatcat:bqmbvrpakngdpjmbm3y2u5dmwm
Distributed Differential Space-Time Coding For Two-Way Relay Networks Using Analog Network Coding
2013
Zenodo
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in [18] using 4-PSK modulation, the three-phase differential DSTC technique using 8-PSK modulation proposed in [27] , and the four-phase differential distributed Alamouti space-time coding technique ...
CONCLUSION In this paper, we propose a novel non-coherent distributed space-time coding technique for two-way wireless relay networks using the threephase protocol. ...
doi:10.5281/zenodo.43643
fatcat:5ifn4szir5hxjm2rlsltho4i54
Front Matter: Volume 8753
2013
Wireless Sensing, Localization, and Processing VIII
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A unique, consistent, permanent citation identifier (CID) number is assigned to each article at the time of the first publication. ...
The publisher is not responsible for the validity of the information or for any outcomes resulting from reliance thereon. ...
(United States) 8753 09 Noncoherent unitary space-time codes for wireless MIMO communications [8753-9] X. Chen, E. Walker, Southern Univ. ...
doi:10.1117/12.2032005
fatcat:wg5mvazdgfgqrcdaiim4sk3wc4
A Survey of Geometric Optimization for Deep Learning: From Euclidean Space to Riemannian Manifold
[article]
2023
arXiv
pre-print
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., feature redundancy, and vanishing or exploding gradients), since updating parameters in Euclidean space cannot fully exploit the geometric structure of the solution space. ...
[76] put forward a robust manifold broad learning system (RM-BLS) for time series prediction with large-scale noisy disturbations. ...
Network modules inherited from torch.nn.module initialize layers with manifolds and forward functions. ...
arXiv:2302.08210v1
fatcat:7bvgni4isngmtnwuxvcn6w6fdq
Low Complexity Iterative Receivers For Space-Time Block Coded Mc-Cdma Downlink Systems
2005
Zenodo
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After space-time coding, OFDM modulation is performed. ...
SOFT INTERFERENCE CANCELLATION SCHEMES The signals output by the space-time combiner are first processed by the MUD, which consist of a linear equalizer, despreading, and a module that performs soft demapping ...
doi:10.5281/zenodo.39411
fatcat:vzeyjbebevf63mk4q66ysthuzu
On performance of residue number system coded differential space-time-frequency coding
2007
AFRICON 2007
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Space-time coded OFDM was proposed and shown to be an effective transmission technique for MIMO systems. ...
Diversity techniques such as time, frequency and space are commonly used to combat multipath fading. ...
The success of differential space-time modulation is critical to the design of unitary space-time signal constellations [117] , [118] , [119] , [120] , [121] . ...
doi:10.1109/afrcon.2007.4401439
fatcat:wxq2rv2xujcp7hxud4x54tla64
Low complexity frequency domain hybrid-ARQ chase combining for broadband MIMO CDMA systems
2012
EURASIP Journal on Wireless Communications and Networking
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The throughput is evaluated for some representative antenna configurations and load factors to show the gains offered by the proposed techniques. ...
each transmission, then packet combining is performed at the level of the soft demapper. ...
We also present the architecture of a space-time turbo receiver with no packet combiner. ...
doi:10.1186/1687-1499-2012-134
fatcat:ti4ohrmvyfbk3ayuceznivvcc4
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