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Signal Processing Theory and Methods

Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control


Recently, OFDM has been considered for VLC to boost data rates and combat inter-symbol interference. However, VLC-OFDM inherits the disadvantage of high PAPR from traditional RF systems. Unlike RF signaling, both the maximum and minimum of VLC signals must be considered. Additionally, in order to support dimming control, the positive and negative dynamic-range constraints could be asymmetric. Clipping is the simplest way to satisfy the dynamic-range constraints, but it does not allow for any EVM distortion control.

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Authors:
Zhenhua Yu, Robert J. Baxley, G. Tong Zhou
Submitted On:
23 February 2016 - 1:44pm
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Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control.pdf

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[1] Zhenhua Yu, Robert J. Baxley, G. Tong Zhou, "Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/412. Accessed: Jun. 24, 2017.
@article{412-15,
url = {http://sigport.org/412},
author = {Zhenhua Yu; Robert J. Baxley; G. Tong Zhou },
publisher = {IEEE SigPort},
title = {Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control},
year = {2015} }
TY - EJOUR
T1 - Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control
AU - Zhenhua Yu; Robert J. Baxley; G. Tong Zhou
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/412
ER -
Zhenhua Yu, Robert J. Baxley, G. Tong Zhou. (2015). Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control. IEEE SigPort. http://sigport.org/412
Zhenhua Yu, Robert J. Baxley, G. Tong Zhou, 2015. Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control. Available at: http://sigport.org/412.
Zhenhua Yu, Robert J. Baxley, G. Tong Zhou. (2015). "Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control." Web.
1. Zhenhua Yu, Robert J. Baxley, G. Tong Zhou. Constrained Clipping for PAPR Reduction in VLC Systems with Dimming Control [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/412

Persistent Homology Approximations on Network Distances


This paper presents methods to compare high order networks using persistent homology. High order networks induce well-founded homolog- ical features and the difference between networks is measured by the difference between the homological features. This is a reasonable approximation to a valid metric in the space of high order networks modulo permutation isomorphisms. The approximations succeed in discriminating engineering research communities from mathematics communities.

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Authors:
Alejandro Ribeiro
Submitted On:
23 February 2016 - 1:44pm
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persistent_homology_approximation.pdf

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[1] Alejandro Ribeiro, "Persistent Homology Approximations on Network Distances", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/381. Accessed: Jun. 24, 2017.
@article{381-15,
url = {http://sigport.org/381},
author = {Alejandro Ribeiro },
publisher = {IEEE SigPort},
title = {Persistent Homology Approximations on Network Distances},
year = {2015} }
TY - EJOUR
T1 - Persistent Homology Approximations on Network Distances
AU - Alejandro Ribeiro
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/381
ER -
Alejandro Ribeiro. (2015). Persistent Homology Approximations on Network Distances. IEEE SigPort. http://sigport.org/381
Alejandro Ribeiro, 2015. Persistent Homology Approximations on Network Distances. Available at: http://sigport.org/381.
Alejandro Ribeiro. (2015). "Persistent Homology Approximations on Network Distances." Web.
1. Alejandro Ribeiro. Persistent Homology Approximations on Network Distances [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/381

IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS

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Authors:
Yehoshua Y. Zeevi
Submitted On:
23 February 2016 - 1:44pm
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PaperPresentation.pdf

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[1] Yehoshua Y. Zeevi, "IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/353. Accessed: Jun. 24, 2017.
@article{353-15,
url = {http://sigport.org/353},
author = {Yehoshua Y. Zeevi },
publisher = {IEEE SigPort},
title = {IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS},
year = {2015} }
TY - EJOUR
T1 - IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS
AU - Yehoshua Y. Zeevi
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/353
ER -
Yehoshua Y. Zeevi. (2015). IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS. IEEE SigPort. http://sigport.org/353
Yehoshua Y. Zeevi, 2015. IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS. Available at: http://sigport.org/353.
Yehoshua Y. Zeevi. (2015). "IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS." Web.
1. Yehoshua Y. Zeevi. IMAGE UNMIXING SUCCESS ESTIMATION IN SPATIALLY VARYING SYSTEMS [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/353

A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption

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Authors:
Edmar S. da Silva, Ricardo M. Campello de Souza
Submitted On:
23 February 2016 - 1:44pm
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presentation.pdf

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[1] Edmar S. da Silva, Ricardo M. Campello de Souza, "A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/337. Accessed: Jun. 24, 2017.
@article{337-15,
url = {http://sigport.org/337},
author = {Edmar S. da Silva; Ricardo M. Campello de Souza },
publisher = {IEEE SigPort},
title = {A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption},
year = {2015} }
TY - EJOUR
T1 - A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption
AU - Edmar S. da Silva; Ricardo M. Campello de Souza
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/337
ER -
Edmar S. da Silva, Ricardo M. Campello de Souza. (2015). A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption. IEEE SigPort. http://sigport.org/337
Edmar S. da Silva, Ricardo M. Campello de Souza, 2015. A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption. Available at: http://sigport.org/337.
Edmar S. da Silva, Ricardo M. Campello de Souza. (2015). "A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption." Web.
1. Edmar S. da Silva, Ricardo M. Campello de Souza. A Finite Field Cosine Transform-Based Image Processing Scheme for Color Image Encryption [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/337

Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation


Greedy pursuit is one of the standard approaches for sparse approximation. Since the derivation of the conventional greedy pursuit schemes, including matching pursuit (MP) and orthogonal MP (OMP), is based on the inner product space, they may not work properly in the presence of impulsive noise. In this work, we devise a new definition of correlation in lp-space with p>0, called lp-correlation, and introduce the concept of orthogonality in lp-space.

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23 February 2016 - 1:43pm
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outlier-robust_greedy_pursuit.pdf

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[1] , "Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/236. Accessed: Jun. 24, 2017.
@article{236-15,
url = {http://sigport.org/236},
author = { },
publisher = {IEEE SigPort},
title = {Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation},
year = {2015} }
TY - EJOUR
T1 - Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation
AU -
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/236
ER -
. (2015). Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation. IEEE SigPort. http://sigport.org/236
, 2015. Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation. Available at: http://sigport.org/236.
. (2015). "Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation." Web.
1. . Outlier-Robust Greedy Pursuit Algorithms in lp-Space for Sparse Approximation [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/236

Discrete Wavelet Transforms: some tips, tricks, concepts, and applications


Discrete Wavelet Transforms: some tips, tricks, concepts, and applications.

A short list of papers containing some tips, tricks, concepts, and applications related to the Discrete Wavelet Transform (DWT).

Paper Details

Authors:
et al.
Submitted On:
23 February 2016 - 1:43pm
Short Link:
Type:

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ieee_sigport_panel.pdf

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[1] et al., "Discrete Wavelet Transforms: some tips, tricks, concepts, and applications", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/207. Accessed: Jun. 24, 2017.
@article{207-15,
url = {http://sigport.org/207},
author = {et al. },
publisher = {IEEE SigPort},
title = {Discrete Wavelet Transforms: some tips, tricks, concepts, and applications},
year = {2015} }
TY - EJOUR
T1 - Discrete Wavelet Transforms: some tips, tricks, concepts, and applications
AU - et al.
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/207
ER -
et al.. (2015). Discrete Wavelet Transforms: some tips, tricks, concepts, and applications. IEEE SigPort. http://sigport.org/207
et al., 2015. Discrete Wavelet Transforms: some tips, tricks, concepts, and applications. Available at: http://sigport.org/207.
et al.. (2015). "Discrete Wavelet Transforms: some tips, tricks, concepts, and applications." Web.
1. et al.. Discrete Wavelet Transforms: some tips, tricks, concepts, and applications [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/207

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