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Signal Processing for Communications and Networking

A New Perspective on Randomized Gossip Algorithms


In this short note we propose a new approach for the design and analysis of randomized gossip algorithms which can be used to solve the average consensus problem. We show how the Randomized Block Kaczmarz (RBK) method—a method for solving linear systems—works as gossip algorithm when applied to a special system encoding the underlying network. The famous pairwise gossip algorithm arises as a special case.

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Authors:
Nicolas Loizou, Peter Richtarik
Submitted On:
5 December 2016 - 8:10am
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PosterGlobalSip.pdf

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[1] Nicolas Loizou, Peter Richtarik , "A New Perspective on Randomized Gossip Algorithms", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1343. Accessed: Aug. 22, 2017.
@article{1343-16,
url = {http://sigport.org/1343},
author = {Nicolas Loizou; Peter Richtarik },
publisher = {IEEE SigPort},
title = {A New Perspective on Randomized Gossip Algorithms},
year = {2016} }
TY - EJOUR
T1 - A New Perspective on Randomized Gossip Algorithms
AU - Nicolas Loizou; Peter Richtarik
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1343
ER -
Nicolas Loizou, Peter Richtarik . (2016). A New Perspective on Randomized Gossip Algorithms. IEEE SigPort. http://sigport.org/1343
Nicolas Loizou, Peter Richtarik , 2016. A New Perspective on Randomized Gossip Algorithms. Available at: http://sigport.org/1343.
Nicolas Loizou, Peter Richtarik . (2016). "A New Perspective on Randomized Gossip Algorithms." Web.
1. Nicolas Loizou, Peter Richtarik . A New Perspective on Randomized Gossip Algorithms [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1343

Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation


The construction of complementary sets of unimodular sequences of length N, with low correlation and complementary correlation coefficients is addressed. The design criterion is based on the minimisation of a cost function that penalizes the integrated side lobe as well as the sum of the complementary correlations of the sequences in the set. Numerical solution to the proposed cost function is obtained using conventional optimization methods.

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Authors:
Israel Alejandro Arriaga-Trejo
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15 November 2016 - 4:35pm
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Poster_GlobalSIP2016_PaperID_1021

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[1] Israel Alejandro Arriaga-Trejo, "Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation ", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1265. Accessed: Aug. 22, 2017.
@article{1265-16,
url = {http://sigport.org/1265},
author = {Israel Alejandro Arriaga-Trejo },
publisher = {IEEE SigPort},
title = {Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation },
year = {2016} }
TY - EJOUR
T1 - Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation
AU - Israel Alejandro Arriaga-Trejo
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1265
ER -
Israel Alejandro Arriaga-Trejo. (2016). Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation . IEEE SigPort. http://sigport.org/1265
Israel Alejandro Arriaga-Trejo, 2016. Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation . Available at: http://sigport.org/1265.
Israel Alejandro Arriaga-Trejo. (2016). "Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation ." Web.
1. Israel Alejandro Arriaga-Trejo. Construction of Complementary Sets of Sequences with Low Aperiodic Correlation and Complementary Correlation [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1265

IEEE SP Cup 2016 Report - Team MGLS


Extracting the Electric Network Frequency (ENF) fluctuations from an audio recording and comparing it to a reference database is a new approach in performing forensic digital audio authentication. The problem statement of the IEEE SP cup 2016 competition relates to time-varying location-dependent signature of power grids as it becomes intrinsically captured in media recordings, due to direct or indirect influences from the respective power grid. In this project signal processing and information security/forensics are collectively elaborated.

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Authors:
Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello
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31 August 2016 - 12:02pm
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MGLS_IEEESPCup2016_Report.pdf

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[1] Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello, "IEEE SP Cup 2016 Report - Team MGLS", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1146. Accessed: Aug. 22, 2017.
@article{1146-16,
url = {http://sigport.org/1146},
author = {Dr. K. C. B. Wavegedara; Piyumika T. Bandula; W. A. K. Amalika Lahiruni; G. D. C. Nipuni B. Mello },
publisher = {IEEE SigPort},
title = {IEEE SP Cup 2016 Report - Team MGLS},
year = {2016} }
TY - EJOUR
T1 - IEEE SP Cup 2016 Report - Team MGLS
AU - Dr. K. C. B. Wavegedara; Piyumika T. Bandula; W. A. K. Amalika Lahiruni; G. D. C. Nipuni B. Mello
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1146
ER -
Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello. (2016). IEEE SP Cup 2016 Report - Team MGLS. IEEE SigPort. http://sigport.org/1146
Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello, 2016. IEEE SP Cup 2016 Report - Team MGLS. Available at: http://sigport.org/1146.
Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello. (2016). "IEEE SP Cup 2016 Report - Team MGLS." Web.
1. Dr. K. C. B. Wavegedara, Piyumika T. Bandula, W. A. K. Amalika Lahiruni, G. D. C. Nipuni B. Mello. IEEE SP Cup 2016 Report - Team MGLS [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1146

Graph Frequency Analysis of Brain Signals


This paper presents methods to analyze functional brain networks and signals from graph spectral perspectives. The notion of frequency and filters traditionally defined for signals supported on regular domains such as discrete time and image grids has been recently generalized to irregular graph domains, and defines brain graph frequencies associated with different levels of spatial smoothness across the brain regions. Brain network frequency also enables the decomposition of brain signals into pieces corresponding to smooth or rapid variations.

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Authors:
Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro
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19 July 2016 - 1:47pm
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projectSummary_2016_IEEE.pdf

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[1] Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro, "Graph Frequency Analysis of Brain Signals", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1134. Accessed: Aug. 22, 2017.
@article{1134-16,
url = {http://sigport.org/1134},
author = {Weiyu Huang; Leah Goldsberry; Nicholas F. Wymbs; Scott T. Grafton; Danielle S. Bassett; and Alejandro Ribeiro },
publisher = {IEEE SigPort},
title = {Graph Frequency Analysis of Brain Signals},
year = {2016} }
TY - EJOUR
T1 - Graph Frequency Analysis of Brain Signals
AU - Weiyu Huang; Leah Goldsberry; Nicholas F. Wymbs; Scott T. Grafton; Danielle S. Bassett; and Alejandro Ribeiro
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1134
ER -
Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro. (2016). Graph Frequency Analysis of Brain Signals. IEEE SigPort. http://sigport.org/1134
Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro, 2016. Graph Frequency Analysis of Brain Signals. Available at: http://sigport.org/1134.
Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro. (2016). "Graph Frequency Analysis of Brain Signals." Web.
1. Weiyu Huang, Leah Goldsberry, Nicholas F. Wymbs, Scott T. Grafton, Danielle S. Bassett, and Alejandro Ribeiro. Graph Frequency Analysis of Brain Signals [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1134

Secure M-PSK Communication via Directional Modulation


In this work, a directional modulation-based technique is devised to enhance the security of a multi-antenna wireless communication system employing M-PSK modulation to convey information. The directional modulation method operates by steering the array beam in such a way that the phase of the received signal at the receiver matches that of the intended M-PSK symbol. Due to the difference between the channels of the legitimate receiver and the eavesdropper, the signals received by the eavesdropper generally encompass a phase component different than the actual symbols.

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Authors:
Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten
Submitted On:
29 March 2016 - 1:30am
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direcitonal modulation-ICASSP.pptx

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[1] Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten, "Secure M-PSK Communication via Directional Modulation", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/1061. Accessed: Aug. 22, 2017.
@article{1061-16,
url = {http://sigport.org/1061},
author = {Ashkan Kalantari; Mojtaba Soltanalian; Sina Maleki; Symeon Chatzinotas; and Bjorn Ottersten },
publisher = {IEEE SigPort},
title = {Secure M-PSK Communication via Directional Modulation},
year = {2016} }
TY - EJOUR
T1 - Secure M-PSK Communication via Directional Modulation
AU - Ashkan Kalantari; Mojtaba Soltanalian; Sina Maleki; Symeon Chatzinotas; and Bjorn Ottersten
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/1061
ER -
Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten. (2016). Secure M-PSK Communication via Directional Modulation. IEEE SigPort. http://sigport.org/1061
Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten, 2016. Secure M-PSK Communication via Directional Modulation. Available at: http://sigport.org/1061.
Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten. (2016). "Secure M-PSK Communication via Directional Modulation." Web.
1. Ashkan Kalantari, Mojtaba Soltanalian, Sina Maleki, Symeon Chatzinotas, and Bjorn Ottersten. Secure M-PSK Communication via Directional Modulation [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/1061

Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver

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Authors:
Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt
Submitted On:
22 March 2016 - 2:35am
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icassp_2016_wlbce.pdf

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[1] Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt, "Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/955. Accessed: Aug. 22, 2017.
@article{955-16,
url = {http://sigport.org/955},
author = { Vimal Radhakrishnan ; Rodrigo C. de Lamare ; Martin Haardt },
publisher = {IEEE SigPort},
title = {Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver},
year = {2016} }
TY - EJOUR
T1 - Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver
AU - Vimal Radhakrishnan ; Rodrigo C. de Lamare ; Martin Haardt
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/955
ER -
Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt. (2016). Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver. IEEE SigPort. http://sigport.org/955
Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt, 2016. Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver. Available at: http://sigport.org/955.
Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt. (2016). "Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver." Web.
1. Vimal Radhakrishnan , Rodrigo C. de Lamare , Martin Haardt. Subspace-based Adaptive Widely Linear Blind Channel Estimation for Constrained Minimum Variance CDMA Receiver [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/955

ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION

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Authors:
Elisabeth De Carvalho
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20 March 2016 - 11:15am
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ICASSP_2015_Presentation.pdf

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[1] Elisabeth De Carvalho, "ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/881. Accessed: Aug. 22, 2017.
@article{881-16,
url = {http://sigport.org/881},
author = {Elisabeth De Carvalho },
publisher = {IEEE SigPort},
title = {ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION},
year = {2016} }
TY - EJOUR
T1 - ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION
AU - Elisabeth De Carvalho
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/881
ER -
Elisabeth De Carvalho. (2016). ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION. IEEE SigPort. http://sigport.org/881
Elisabeth De Carvalho, 2016. ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION. Available at: http://sigport.org/881.
Elisabeth De Carvalho. (2016). "ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION." Web.
1. Elisabeth De Carvalho. ENERGY DETECTION IN ISI CHANNELS USING LARGE-SCALE RECEIVER ARRAYS_PRESENTATION [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/881

Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination


Massive MIMO is, in general, severely affected by pilot contamination. As opposed to traditional detectors, we propose a group-blind detector that takes into account the presence of pilot contamination. While sticking to the traditional structure of the training phase, where orthogonal pilot sequences are reused, we use the excess antennas at each base station to partially remove interference during the uplink data transmission phase. We analytically derive the asymptotic SINR achievable with group-blind detection, and confirm our findings by simulations.

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Authors:
Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win
Submitted On:
19 March 2016 - 4:25am
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poster_ICASSP_16.pdf

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[1] Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win, "Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/789. Accessed: Aug. 22, 2017.
@article{789-16,
url = {http://sigport.org/789},
author = {Giovanni Geraci; Tony Q.S. Quek; Moe Z. Win },
publisher = {IEEE SigPort},
title = {Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination},
year = {2016} }
TY - EJOUR
T1 - Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination
AU - Giovanni Geraci; Tony Q.S. Quek; Moe Z. Win
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/789
ER -
Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win. (2016). Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination. IEEE SigPort. http://sigport.org/789
Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win, 2016. Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination. Available at: http://sigport.org/789.
Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win. (2016). "Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination." Web.
1. Giovanni Geraci, Tony Q.S. Quek, Moe Z. Win. Group-Blind Detection with Very Large Antenna Arrays in the Presence of Pilot Contamination [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/789

ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM


Filter Bank Multi-Carrier (FBMC) modulation is considered as a possible candidate for 5G. Compared to OFDM, channel estimation becomes more challenging in FBMC due to the imaginary interference, which has to be canceled at the pilot positions either by auxiliary pilot symbols or coding.

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16 March 2016 - 9:19am
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ICASSP2016Poster.pdf

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[1] , "ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/713. Accessed: Aug. 22, 2017.
@article{713-16,
url = {http://sigport.org/713},
author = { },
publisher = {IEEE SigPort},
title = {ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM},
year = {2016} }
TY - EJOUR
T1 - ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM
AU -
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/713
ER -
. (2016). ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM. IEEE SigPort. http://sigport.org/713
, 2016. ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM. Available at: http://sigport.org/713.
. (2016). "ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM." Web.
1. . ON PILOT-SYMBOL AIDED CHANNEL ESTIMATION IN FBMC-OQAM [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/713

Proximity Without Consensus in Online Multi-Agent Optimization -- poster

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Authors:
Alec Koppel, Brian M. Sadler, Alejandro Ribeiro
Submitted On:
14 March 2016 - 7:03am
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icassp2016_poster.pdf

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[1] Alec Koppel, Brian M. Sadler, Alejandro Ribeiro, "Proximity Without Consensus in Online Multi-Agent Optimization -- poster", IEEE SigPort, 2016. [Online]. Available: http://sigport.org/671. Accessed: Aug. 22, 2017.
@article{671-16,
url = {http://sigport.org/671},
author = {Alec Koppel; Brian M. Sadler; Alejandro Ribeiro },
publisher = {IEEE SigPort},
title = {Proximity Without Consensus in Online Multi-Agent Optimization -- poster},
year = {2016} }
TY - EJOUR
T1 - Proximity Without Consensus in Online Multi-Agent Optimization -- poster
AU - Alec Koppel; Brian M. Sadler; Alejandro Ribeiro
PY - 2016
PB - IEEE SigPort
UR - http://sigport.org/671
ER -
Alec Koppel, Brian M. Sadler, Alejandro Ribeiro. (2016). Proximity Without Consensus in Online Multi-Agent Optimization -- poster. IEEE SigPort. http://sigport.org/671
Alec Koppel, Brian M. Sadler, Alejandro Ribeiro, 2016. Proximity Without Consensus in Online Multi-Agent Optimization -- poster. Available at: http://sigport.org/671.
Alec Koppel, Brian M. Sadler, Alejandro Ribeiro. (2016). "Proximity Without Consensus in Online Multi-Agent Optimization -- poster." Web.
1. Alec Koppel, Brian M. Sadler, Alejandro Ribeiro. Proximity Without Consensus in Online Multi-Agent Optimization -- poster [Internet]. IEEE SigPort; 2016. Available from : http://sigport.org/671

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