RESEARCH ACTIVITY ON COMMUNICATION …...Gian Paolo Calzolari, Marco Chiani, Franco Chiaraluce, Roberto Garello, and Enrico Paolini. " Channel Coding for Future Space Missions: New

RESEARCH ACTIVITY ON

COMMUNICATION SYSTEMS

Roberto Roberto GarelloGarello

Politecnico di TorinoPolitecnico di Torino

1

[2012[2012--0404--20]20]

Author:

Roberto GARELLO, Ph.D.

Associate Professor in Communication Engineering

Dipartimento di Elettronica

Politecnico di Torino, Italy

Roberto Garello. “Research activity – 2012/04/20” 2

Politecnico di Torino, Italy

email: [email protected]

web: www.tlc.polito.it/garello

Research activity on communication systems:

A. Space communications

B. Cognitive radio

C. Indoor positioning

D. xDSL

E. LTE


E. LTE

A – SPACE COMMUNICATION

Design and analysis of satellite/spacecraft links. Focus on:

�Physical layer

�Coding schemes


A – Physical layer

�Physical layer design for next generation links: high order modulations, adaptive coding and modulation,…

�Analysis of symbol synchronization properties

�Randomizer optimization


++1

++ ++

( )u k

3D5D7D8D

A – Coding schemes

�Design and analysis of turbo codes

�Choice of constituent convolutional codes

�Interleaver theory

�Turbo code minimum distance computation

�Non-binary coding schemes


�Design and analysis of Hamming product codes

�…INFORMATION FRAME

(N bits)

INTERLEAVER

PERMUTATED

INFORMATION FRAME

Information bits INa

INb

D D D D⊕

⊕ ⊕ ⊕

out0aCCa

⊕

D D D D⊕

⊕ ⊕ ⊕

out0b

out1b

CCb

⊕

out1a

PU

NC

TU

RE

R

Encoded bits

1 0 1

1 1 0

0 1 1

A – Techniques

�Digital modulations

�Signal processing

�Link optimization (link budget, power spectral density, …)


�Coding theory

�Discrete mathematics, codes over groups

�Iterative algorithms

�…

A - REFERENCES

JOURNALS

Gian Paolo Calzolari, Franco Chiaraluce, Roberto Garello, and Enrico Vassallo. "Symbol synchronization properties of CCSDS turbo codes". International Journal of Satellite Communications, September 2002, vol. 20, pp. 379-390.

Sergio Benedetto, Roberto Garello, Guido Montorsi, Claude Berrou, Catherine Douillard, Domenico Giancristofaro, Alberto Ginesi, Luca Giugno, and Marco Luise. "MHOMS: high-speed ACM modem for satellite applications Wireless Communications". IEEE Wireless Communications, April 2005, vol. 12, n. 2, pp.66-77.

Marco Baldi, Franco Chiaraluce, NoureddineBoujnah, and Roberto Garello. "On the Autocorrelation Properties


Marco Baldi, Franco Chiaraluce, NoureddineBoujnah, and Roberto Garello. "On the Autocorrelation Properties of Truncated Maximum-Length Sequences and Their Effect on the Power Spectrum". IEEE Transactions on Signal Processing, vol. 58, no. 12, December 2010, pp. 6284-6297

Gian Paolo Calzolari, Marco Chiani, Franco Chiaraluce, Roberto Garello, and Enrico Paolini. "Channel Coding forFuture Space Missions: New Requirements and Trends". Proceedings of the IEEE, November 2007, vol. 95, n. 11, pp. 2157-2170.

Sergio Benedetto, Roberto Garello, and Guido Montorsi. "A search for good convolutional codes to be used in the construction of turbo codes". IEEE Transactions on Communications, September 1998, vol. 46, pp. 1101-1105.

Sergio Benedetto, Giovanni Cancellieri, Roberto Garello, and Guido Montorsi. "Interleaver properties and theirapplications to the trellis complexity analysis of turbo codes". IEEE Transactions on Communications, May 2001, vol. 49, pp. 793-807.

Roberto Garello, Paola Pierleoni, and Sergio Benedetto. "Computing the free distance of turbo codes and seriallyconcatenated convolutional codes: algorithms and applications". IEEE Journal on Selected Areas in Communications, May 2001, vol. 19, pp. 800-812.

Roberto Garello, Guido Montorsi, Sergio Benedetto, Dariush Divsalar, and Fabrizio Pollara. "Labelings and encoders with the uniform bit error property with applica tions to serially concatenated trellis codes". IEEE Transactionson Information Theory, January2002, vol. 48, pp. 123-136.

A - REFERENCES

JOURNALS


Transactionson Information Theory, January2002, vol. 48, pp. 123-136.

Gian Paolo Calzolari, Franco Chiaraluce, Roberto Garello, and Enrico Vassallo. Turbo Code Applications: a journey from a paper to realization, Chapter 13: "Turbo Code Applications on Telemetry and Deep SpaceCommunications", Springer-Verlag, 2005, pp. 321-344.

Franco Chiaraluce and Roberto Garello. "Extended Hamming Product Codes Analytical Performance Evaluation for Low Error Rate Applications ". IEEE Transactions on Wireless Communications, November 2004, vol. 3, n. 6, pp. 2353-2361.

Franco Chiaraluce and Roberto Garello. "Design and Comparison of Turbo Codes under Frame-Length and Code-Rate Constraints". International Journal of Satellite Communicationsand Networking, May 2006, vol. 24, n. 3, pp. 241-259.

CONTRACTS

2000: “Bandwidth efficient coding schemes for near-Earth Applications” (14128/00/D/SW) between ESA and University of Ancona. Project Manager: Roberto Garello.

2001: “Highly Efficient Channel Codes for High Data Rate Missions” (15048/01/D/HK(SC)) between ESA and University of Ancona. Project Manager: Roberto Garello.

A - REFERENCES


between ESA and University of Ancona. Project Manager: Roberto Garello.

2003: “Bandwidth-Efficient Coding and Modulation Based on Low Density Parity Check Codes” (17523/03/D/CS) between ESA and Politecnico di Torino. Project Manager: Roberto Garello.

2007: “Randomizer for High Data Rates” (20959/07/D/MRP) contract between ESA/ESOC and Politecnico di Torino. Project Manager: Roberto Garello.

A - COLLABORATION

�Politecnico di Torino: Sergio Benedetto, Guido Montorsi

�Università Politecnica delle Marche: Franco Chiaraluce, Marco Baldi

�ESA/ESOC: Gian Paolo Calzolari, Enrico Vassallo, Xavier Enrich

�Past Phd student: Noureddine Boujnah (Tunisia)


A – Topics for collaboration

�Impact of jamming on CDMA signals, countermeasures [Dovis]

� Modeling of jamming impact on CDMA links, design of techniques to limit its impact


�Adaptive Hybrid Error Correction schemes for TV contribution over public IP networks (joint with RAI)

�Adaptive HEC techniques, combining FEC and ARQ in an optimized way.



�Exploit layer redundancy

� [payload sequences, packets, protocol layers (headers, CRC),…]



B – COGNITIVE RADIO





� Spectrum sensing


0H1H

-multi-antenna devices

-multi-sensor network

vs.

B – Spectrum sensing

-Eigenvalue based sensing algorithms

-Comparison of different algorithms

-Impact of system parameter

-Fully de-centralized distributed algorithms for distributed spectrum sensing and automatic clustering


sensing and automatic clustering

-Algorithms exploiting cyclostationary properties

Matrix of received samples

Sample covariance matrix

EIGENVALUE-BASED SENSING

1 HS YYn

=

11 1

1

...

... ... ... ( ) samples

...

n

k kn

y y

Y k x n

y y

=


Eigenvalues

Statistical tests

n

1,..., kλ λ

12n

RLRT Tλσ

=( )

1

1

1... k

GLRT T

k

λ

λ λ=

+ +

( )2

1

2 2

1 1...ij k

n n

ykn kED T

λ λ

σ σ

+ += =

∑

EIGENVALUE-BASED SENSING


B – Techniques

�Statistics, estimation theory

�Application of Random Matrix Theory results

�Distributed signal processing, iterative sum product over factor graphs

�Real measurements and sensing for OFDM-based systems


�Real measurements and sensing for OFDM-based systems

� …

B - REFERENCES

JOURNALS

Federico Penna, Roberto Garello, and Maurizio A. Spirito. "Cooperative Spectrum Sensing basedon the Limiting Eigenvalue Ratio Distribution in Wishar t Matrices". IEEE CommunicationLetters, July 2009, vol. 13, n. 11, pp. 507-509.

Federico Penna, Claudio Pastrone, Hussein Khaleel, Maurizio A. Spirito, and Roberto Garello, Reliable Communications for Short-Range Wireless Systems, Chapter 19: "Characterization of Wi-Fi Interference for Dynamic ChannelAllocation in WPANs", Cambridge UniversityPress, 2011,


Fi Interference for Dynamic ChannelAllocation in WPANs", Cambridge UniversityPress, 2011, pp.234-269.

Federico Penna and Roberto Garello, “On the Detection of Discontinuous Signals for Cognitive Radio Applications”, IET Communications, vol. 5, no. 10, 2011, pp. 1453-1461.

Federico Penna and Roberto Garello, “Decentralized Neyman-Pearson Test with Belief Propagation for Peer-to-Peer Collaborative Spectrum Sensing”, IEEE Transactions on Wireless Communications, 2012.

CONTRACTS

2012 “TESL@ (TLC Energy Saving Large Action)” between MIUR and Telecom Italia. Local responsible for Politecnico di Torino: Roberto Garello.

B - REFERENCES


B - COLLABORATION

�Past PhD students: Federico Penna (Italy), Yifan Jia (China)

�ISMB: Maurizio Spirito, Claudio Pastrone

�CSP: Andrea Ghittino, Alberto Perotti

�Weizmann Institute of Science: Boaz Nadler


B – Topics for collaboration

�Application of Random Matrix techniques to eigenvalue-based sensing

�Sensing of real OFDM signals [CSP]


C – INDOOR POSITIONING





�P2P hybrid cooperative positioning

�Enhancing GNSS by systems of opportunity


C – P2P hybrid cooperative positioning


cooperative positioning

paradigm

traditional GNSS positioning

C – P2P hybrid cooperative positioning

�Fully de-centralized algorithms for P2P hybrid cooperative positioning (sum product over factor graphs, Kalman filter)

�RF ranging by UWB


• Factorization of the joint a posteriori probability

• Resulting FG

▫ Red boxes

�temporal evolution factor�(mobility model)

�““““P2P”””” factor�(likelihood of range meas.)

�““““GPS”””” factor�(likelihood of pseudorange meas.)

SUM PRODUCT ALGORITHM OVER FACTOR GRAPHS


▫ Red boxes

� Physical nodes

▫ P2P factors

� exchange of messages

▫ Distributed implementation

SUM PRODUCT ALGORITHM OVER FACTOR GRAPHS


�Physical network �Corresponding

�FACTOR GRAPH

2-WAY TOA (Time of Arrival) RANGING

t t + ∆

t ε+ ∆ +

ε

t ε+ ∆ + + ∆


d c= ∆

d

C – Enhancing GNSS by systems of opportunity

-Use of DVB-T signals for positioning


C – Techniques

�Application of GNSS techniques

�RF ranging (UWB, WiFi): measurements, modeling

�Distributed signal processing

�Fully decentralized cooperative estimation algorithms (Least Squares, Kalmanfilter, sum product over factor graphs,…)


Squares, Kalmanfilter, sum product over factor graphs,…)

�…

C - REFERENCES

JOURNALS

Mauricio A. Caceres, Federico Penna, Henk Wymeersch, and Roberto Garello, “Hybrid Cooperative Positioning based on Distributed Belief Propagation”, IEEE Journal on Selected Areas in Communications, vol. 29, no.10, December 2011, pp. 1948-1958.

R. Garello, Letizia Lo Presti, Giovanni E. Corazza, and Jaron Samson. “Peer-to-Peer Cooperative Positioning - Part I: GNSS Aided Acquisition”. Inside GNSS, March-April 2012.

R. Garello, Jaron Samson, Maurizio Spirito, Henk Wymeersch. “Peer-to-Peer Cooperative Positioning - Part II: Hybrid deviceswith GNSS&RF ranging capability”. Inside GNSS, May-


PATENT APPLICATION

Positioning - Part II: Hybrid deviceswith GNSS&RF ranging capability”. Inside GNSS, May-June 2012.

R. Garello, L. Lo Presti,F. Dovis, D. Margaria, J. Samson. “Sistema di posizionamento geo-spazialecooperativo operante con sistemi di navigazione globale satellitare e reti di telecomunicazione wireless, relativo procedimento e apparato di posizionamento geo-spaziale”. Patent ApplicationN° TO2010A000718, 30/08/2010.

CONTRACTS

2009 "Peer-to-Peer Positioning" (22868/09/NL/AT) between ESA/ESTEC and Politecnico diTorino. Project Manager: Roberto Garello.

C - REFERENCES


C - COLLABORATION

�Politecnico di Torino: Letizia Lo Presti, Fabio Dovis, Luciano Musumeci, Jie Huang

�ISMB: Maurizio Spirito, Francesco Sottile, Davide Margaria

�ESA/ESTEC: Jaron Samson

�Chalmers University of Technology: Henk Wymeersch


�RAI research center: Bruno Sacco

�Past PhD students: Mauricio A. Caceres (Colombia), Federico Penna (Italy)

�PhD student: Zhoubing Xiong (China)

C – Topics for collaboration

�Unified framework for different fully distributed cooperative estimation algorithms

�Systems of opportunity [Lo Presti, Sacco]


D – xDSL


D – xDSL

� DMT vectoring

� Impulse noise protection


D – DMT vectoring

Y H H X


1 11 12 1

2 21 22 2

Y H H X

Y H H X

=

FEXT

THE FEXT PROBLEM

D – DMT vectoring

�Impact of non-idealities on linearly precoded vectored DMT


1 11

2 2

Z XH

Z Xα −

=

D – Impulse noise protection

�Countermeasures against REIN and SHINE pulses


D – Techniques

�MIMO techniques

�Linear precoding

�ARQ

�xDSL capacity under given impairments


�…

D - REFERENCES

JOURNALS

Marco Baldi, Franco Chiaraluce, Roberto Garello, Marco Polano, and Marcello Valentini. "SimpleStatistical Analysis of the Impact of Some Nonidealities in Downstream VDSL with Linear Precoding". EURASIP Journal on Advances in Signal Processing, vol. 2010, pp. 1-14.

Marco Baldi, Franco Chiaraluce, Roberto Garello, Marco Polano, and Marcello Valentini. “Analytical evaluation of the role of estimation and quantization errors in downstream vectored VDSL systems”. International Journal On Advances in Telecommunications, vol. 4, n. 1, 2011.


VDSL systems”. International Journal On Advances in Telecommunications, vol. 4, n. 1, 2011.

CONTRACTS

2007 "Analisi Teorica, Valutazione Prestazionale e Implementazione di un Simulatore per la Stima di Tecnologie Innovative per lo Sfruttamento della Rete di Accesso in Rame”, Telecom Italia e Politecnico di Torino, Project Manager: Roberto Garello.

2008 "Ottimizzazione di Tecniche Vectored DMT e Studio di Metodi di Protezione dai Disturbi”,

D - REFERENCES


2008 "Ottimizzazione di Tecniche Vectored DMT e Studio di Metodi di Protezione dai Disturbi”, Telecom Italia e Politecnico di Torino, Project Manager: Roberto Garello.

D - COLLABORATION

�Università Politecnica delle Marche: Franco Chiaraluce, Marco Baldi

�Telecom Italia: Marco Burzio, Marco Polano, Marcello Valentini

�Past PhD students: Daniele Capirone (Italy)


D – Topics for collaboration

�Vectored DMT


E – LTE


E – LTE

� E.1 Network and device testing, development and optimization


CONTRACTS

2010 “Sviluppo di sistemi di monitoraggio della Quality ofService e della Quality of Experiencesu reti radiomobili innovative”, Telecom Italia e Politecnico di Torino. Project Manager: Roberto Garello.

2011 “Sviluppo di un ambiente di test relativo ai terminali mobili di nuova generazione (LTE)”,

E - REFERENCES


2011 “Sviluppo di un ambiente di test relativo ai terminali mobili di nuova generazione (LTE)”, Telecom Italia e Cnit. Project Manager: Roberto Garello.

2011 “Sviluppo di sistemi di monitoraggio e generazione di traffico per attività di testing su reti radiomobili innovative”, Telecom Italia e Cnit. Project Manager: Roberto Garello.

2012 “Sviluppo di un ambiente di test per la valutazione delle prestazioni OTA (Over The Air) di terminali LTE ”, Telecom Italia e Cnit. Project Manager: Roberto Garello.

2012 ““Testing end-to-end per reti mobili di quarta generazione LTE”, Telecom Italia e Cnit. Project Manager: Roberto Garello.

E - COLLABORATION

�Telecom Italia: Carlo Eynard, Simone Topazzi, Francesca Pascali, William Tomaselli

�Cnit personnel: Matteo Zunino, Simone Mengucci


Current group:

• Roberto Garello

• Zhoubing Xiong

(PhD student, indoor positioning [ISMB])

• MatteoZunino


• MatteoZunino

(CNIT grant, LTE)

Simone Mengucci

(CNIT grant, LTE)

Past PhD students:

• Daniele Capirone (coding, ADSL, graduated in 2010)

• Diego Alberto (signal processing applications to physics, 2011)

• N. Boujnah (space communications, 2011)


• Mauricio A. Caceres (indoor positioning, signal processing applications to genomics, 2011)

• Yifan Jia (cognitive radio, 2012)

• Federico Penna (cognitive radio, indoor positioning, 2012)

Proposed topics for joint collaboration

A. Space communication• Channel coding against jamming [FD]

• Adaptive Hybrid Error Correction schemes for TV contribution over public IP networks

• Joint Protocol-Channel Decoding

B. Indoor positioning� Unified framework for different estimation algorithms


� Unified framework for different estimation algorithms

� Systems of opportunity [LLP]

C. Cognitive radio� Application of Random Matrix techniques to eigenvalue-based sensing

� Sensing of OFDM signals [CSP]

D. xDSL� Vectored DMT

Documents

RESEARCH ACTIVITY ON COMMUNICATION …...Gian Paolo Calzolari, Marco Chiani, Franco Chiaraluce, Roberto Garello, and Enrico Paolini. " Channel Coding for Future Space Missions: New