Results 231 to 240 of about 4,679,817 (265)

An efficient algorithm for space-time block code classification

Global Communications Conference, 2013
This paper proposes a novel and efficient algorithm for space-time block code (STBC) classification, when a single antenna is employed at the receiver. The algorithm exploits the discriminating features provided by the discrete Fourier transform (DFT) of
Yahia A. Eldemerdash, O. Dobre, M. Marey, G. Karagiannidis, B. Liao   +4 more
semanticscholar   +1 more source

Space-Time Block Code Designs for Two-User MIMO X Channels

IEEE Transactions on Communications, 2013
In this paper, we study space-time block code (STBC) designs for two-user MIMO X channels to achieve full diversity when the inter-user interference is cancelled by the group zero-forcing receiver.
Long Shi, Wei Zhang, X. Xia
semanticscholar   +1 more source

Space-Time block codes from orthogonal designs

IEEE Transactions on Information Theory, 1999
We introduce space-time block coding, a new paradigm for communication over Rayleigh fading channels using multiple transmit antennas. Data is encoded using a space-time block code and the encoded data is split into n streams which are simultaneously ...
Member Ieee Vahid Tarokh, H. Jafarkhani, F. I. A. R. Calderbank   +2 more
semanticscholar   +1 more source

Energy-Efficient Full Diversity Collaborative Unitary Space-Time Block Code Designs via Unique Factorization of Signals

IEEE Transactions on Information Theory, 2011
In this paper, a novel concept called a uniquely factorable constellation pair (UFCP) is proposed for the systematic design of a noncoherent full diversity collaborative unitary space-time block code by normalizing two Alamouti codes for a wireless ...
Dong Xia, Jian-Kang Zhang, S. Dumitrescu
semanticscholar   +1 more source

Fast-group-decodable space-time block code

2010 IEEE Information Theory Workshop on Information Theory (ITW 2010, Cairo), 2010
To make the implementation of high-rate space-time block code (STBC) realistic in practical systems, fast-decodable (FD) and group-decodable (GD) code structures have been separately introduced into STBC to reduce the sphere decoding complexity. However,
T. Ren, Y. Guan, C. Yuen, R. Shen
semanticscholar   +1 more source

Minimal non-orthogonality rate 1 space-time block code for 3+ Tx antennas

2000 IEEE Sixth International Symposium on Spread Spectrum Techniques and Applications. ISSTA 2000. Proceedings (Cat. No.00TH8536), 2000
We propose a full rate space-time block code for 3+ Tx antennas. The code is chosen to minimize the non-orthonormality that arises from increasing the rate above the maximum allowed by orthogonality.
O. Tirkkonen, A. Boariu, A. Hottinen
semanticscholar   +1 more source

Receptive Field Block Net for Accurate and Fast Object Detection

European Conference on Computer Vision, 2017
Current top-performing object detectors depend on deep CNN backbones, such as ResNet-101 and Inception, benefiting from their powerful feature representations but suffering from high computational costs. Conversely, some lightweight model based detectors
Songtao Liu, Di Huang, Yunhong Wang
semanticscholar   +1 more source

A novel orthogonal space-time-frequency block code for OFDM systems

IEEE Communications Letters, 2009
In this letter, we propose an orthogonal spacetime- frequency block code for orthogonal frequency division multiplexing (STFBC-OFDM) systems, newly designed to be robust against both time- and frequency-selective fading.
Keonkook Lee, Youngok Kim, Joonhyuk Kang
semanticscholar   +1 more source

A New Full-Rate Full-Diversity Space-Time Block Code With Nonvanishing Determinants and Simplified Maximum-Likelihood Decoding

IEEE Transactions on Signal Processing, 2008
A new 2times2 full-rate full-diversity linear dispersion space-time block code (STBC) is designed by augmenting the generator of the lattice of the Alamouti's orthogonal STBC and optimizing it according to the criterion of the maximal worst codeword ...
J. M. Paredes, A. Gershman, M. Gharavi-Alkhansari   +2 more
semanticscholar   +1 more source

Linear block code decoder using neural network

IEEE World Congress on Computational Intelligence, 2008
In this paper the linear block code decoder is constructed by neural network. The neural network will be adapted for a single-bit error. Each layer of a neural network will simulate a linear block code decoder stage.
Ahmed S. Hadi
semanticscholar   +1 more source