Research Interests
- General Signal and Information Processing: Sampling and
efficient signal representation, Oversampled A/D conversion, design and
application of wavelet filter banks, frames, robust signal
classification, statistical inference and data mining.
- Distributed Signal Processing and Communications for Networks:
Wireless sensor networks (WSNs), distributed source-channel coding for
wireless networks, decentralized routing and MAC algorithms, network
correlated data-gathering, co-operative processing and in-network
inference under communication
constraints, MIMO systems,
heterogeneous networks, Game theory in networks, complexity analysis
and approximation
algorithms in network problems, Implementation of WSN Testbeds.
- Information Theory and General Communications:
Lattices
and its applications (Rate-Distortion and channel coding), joint
source-channel coding, information science of complex dynamic systems,
co-operative
diversity in communications, Cognitive radios, network capacity related
issues, iterative
message-passing based coding systems, Computation over channels.
Research Projects and
Funding
- Ministry of Science and Innovation of
Spain - CONSOLIDER Project
- Foundations and Methodologies for Future Communication and
Sensor Networks (COMONSENS)
- Institutions involved: UPC, UVEG, UPF, UPM, UC3M, UC, UDC,
UVigo, US, UNavarra
- Ministry of Science and Innovation of
Spain
- Collaborative processing and Self-organized communications for
Wireless Sensor Networks (SOFIWORKS)
- Wireless Sensor Networks for Cognitive Radios: Fundamental
Theory and Design of Algorithms (SENSECOGNITIVE)
- Thematic Network: Information & Communication Theory and
Technologies (INFOCOM)
- Cooperative and Cognitive Interference Management Strategies
for Wireless Communication Networks (COSIMA)
- Radio access Techniques for heterogeneous wireless networks
(RACHEL)
- European Comission, FP7-ICT-2011-7.3.3
- Autonomous Control of Large-scale Water
Treatment Plants based on Self-Organized Wireless BioMEM Sensor and
Actuator Networks (HYDROBIONETS)
- European Commission, FP7-PEOPLE-2009-IEF
- Wireless
Sensor Networks for Cognitive Software Radios (WISERNETS)
- European Commission, FP6
D2002-Mobility-3
- Collaborative Signal Processing for Efficient Wireless Networks
(ASPIRE)
- European Commission, FP6
NoE-IST-4-027738
- Creating Ubiquitous Intelligent Sensing Applications (CRUISE)
- European Commission,
FP7-ICT-2007-1-1.1 (Network of the Future)
- Sensor Network for Dynamic and Cognitive Radio Access (SENDORA)
- Deutsche Telekom
- In-network distributed processing under communication
constraints
- Ministry of Work and Social Affairs
- Intelligent and Accessible Environments (EINA), in
cooperation with AVAPACE.
- Ministry of Industry, Turism and
Commerce (Plan Avanza I+D)
- Environmental Surveillance through dense Wireless Sensor
Networks I (VARIMOS I)
- Environmental Surveillance through dense Wireless Sensor
Networks II (VARIMOS II)
- Ministry of Public Works
- Intelligent System for Traffic Signalling and Information
(CABINTEC)
- Regional Government of Valencia
(Regional Ministry of Enterprise,
University & Science)
- Novel research directions in Telecommunications within
Comunidad Valenciana
Publications
- B. Beferull-Lozano, R. Konsbruck, On Multiterminal source
coding for temperature sensing in shift-invariant geometries, IEEE
Transactions on Communications, Vol. 59, no. 4, February 2011.
- A. Erdozain, P. Crespo, B. Beferull-Lozano, Multiple
Description Analog Joint Source-Channel Coding to Exploit the Diversity
in Parallel Channels, IEEE Transactions on Signal
Processing, Vol. 60, no. 11, November 2012.
- X. Insausti, F. Camaro, P. Crespo, B. Beferull-Lozano, J.
Gutiérrez-Gutiérrez, Distributed Gossip Algorithm and
Finite-Length Computational Codes for Efficient In-network Subspace
Projection, IEEE Journal of Selected Topics in Signal
Processing, Vol. 7, no. 2, 2013.
- X. Huang, B. Beferull-Lozano, C. Botella, Quasi Nash
Equilibrium for non-convex distributed power allocation games in
Cognitive Radios, IEEE Transactions on Wireless Communications, Vol.
12, no. 7, July 2013.
- S. Shah, B. Beferull-Lozano, Joint Sensor Selection and
Multi-hop Routing for Distributed Estimation in
Ad-hoc Wireless Sensor Networks, IEEE
Transactions on Signal Processing, Vol. 61, no. 24, Dec 2013.
- C. Asensio, B. Beferull-Lozano, Energy efficient Consensus over
Complex Networks, Accepted, To appear in IEEE Journal of Selected
Topics in Signal Processing, 2014
- C. Asensio, B. Beferull-Lozano, Cross-layer Link Scheduling
protocol for ensuring Average Consensus under SINR-based Interference,
Submitted
to IEEE/ACM Transactions on Networking, 2013.
- G. Tsagkatakis, B. Beferull-Lozano, P. Tsakalides. Efficient
Data Acquisition in WSN via Dictionary based Matrix Completion,
Submitted to IEEE Transactions on Signal Processing, 2013.
- E. Celada-Funes, B. Beferull-Lozano, Dynamic Inhibition Area
based Link Scheduling for Wireless Ad-hoc Networks, Submitted to
IEEE/ACM Transactions on Networking, 2014.
- I. Alustiza, P. Crespo, B. Beferull-Lozano, Analog Multiple
Description Joint Source-Channel Coding Based on Lattice Scaling,
Submitted to IEEE Transactions on Signal Processing, 2014.
-
Book Chapters and Edited Volumes
- V. Velisavljevic, M. Vetterli, B. Beferull, P.L. Dragotti,
Sparse Image Representation by Directionlets. Elsevier Advances in
Imaging and Electron Physics, editor Peter Hawkes, vol. 161-04, pp.
147-209, March 2010.
- X. Insausti, P. Crespo, B. Beferull, J. Del Ser, Concurrent and
Distributed Projection through Local Interference for Wireless Sensor
Networks, Mobile Lightweight Wireless Systems, Lecture Notes of the
Institute for Computer Sciences, Social Informatics and
Telecommunications Engineering 81, pp. 109-119, 2011, Springer.
-
Conference Papers
- E. Celada-Funes, D. Alonso-Román, C. Asensio-Marco, B.
Beferull-Lozano, A reliable CSMA protocol for high performance
broadcast communications in a WSN, GLOBECOM, 2014.
- C. Asensio-Marco, B. Beferull-Lozano, Fast Average Gossiping
Under Asymmetric Links in WSNs, EUSIPCO, 2014.
- C. Asensio-Marco, D. Alonso-Román, B. Beferull-Lozano,
Achieving
energy-efficient distributed consensus in wireless Scale Free Networks,
IEEE International Conference on Communications, Sydney, 2014.
- C. Asensio-Marco, B. Beferull-Lozano, Optimal topology design
for energy efficient consensus in broadcast Wireless Sensor Networks,
IEEE International Conference on Communications, Sydney, 2014.
- E. Celada-Funes, B. Beferull-Lozano, Reaction-Diffusion on
Dynamic Inhibition Areas: A Bio-Inspired Link Scheduling Algorithm,
IEEE Wireless Communications and Networking Conference, April 2014,
Istanbul, Turkey, 2014.
- S. Shah, B. Beferull-Lozano, Adaptive Quantization
for Multihop Progressive Estimation in Wireless Sensor Networks,
EUSIPCO 2013.
- C. Asensio, D. Alonso, F. Camaró, B. Beferull-Lozano,
Topology optimization for a
trade off between energy cost and network lifetime in average
consensus, IEEE International Conference on Acoustics, Speech, and
Signal Processing
(ICASSP), Vancouver, 2013.
- D. Alonso, F. Camaró, C. Asensio, B.
Beferull-Lozano, Distributed subspace projection over wireless sensor
networks with unreliable links, IEEE International Workshop
on Signal Processing Advances in Wireless Communications (SPAWC), 2013.
- X. Huang, B. Beferull-Lozano, C. Botella, Non-convex Power
Allocation Game in MIMO Cognitive Radio Networks, IEEE
International Workshop
on Signal Processing Advances in Wireless Communications (SPAWC), 2013.
- E. Celada-Funes, B. Beferull-Lozano, Dynamic Inhibition Areas
for Accurately Solving the Shortest Link Scheduling Problem, IEEE
International Conference on Communications (ICC), 2013.
- E. Celada-Funes, D. Alonso-Román, B. Beferull-Lozano, C.
Asensio-Marco, Field reconstruction in a WSN through distributed
orthogonal projection, European Workshop on Sensor Networks (EWSN),
2013.
- D. Alonso, E. Celada, C. Asensio, B. Beferull-Lozano, Improving
reliability and efficiency of communications in WSNs under high traffic
demand, IEEE Wireless Communications and Networking Conference (WCNC),
2013.
- F. Camaró, D. Alonso, C. Asensio, B. Beferull-Lozano,
Reducing the observation error in a WSN through a consensus-based
subspace projection, IEEE Wireless Communications and Networking
Conference (WCNC), 2013.
- X. Insausti, P. Crespo, B. Beferull-Lozano, Distributed
Subspace Projection in Wireless Sensor Networks using Computational
Codes, IEEE International Conference on Distributed Computing in Sensor
Systems (DCOSS), 2012.
- X. Insausti, P. Crespo, B. Beferull-Lozano, In-network
computation of the Transition Matrix for Distributed Subspace
Projection, IEEE International Conference on Distributed Computing in
Sensor Systems (DCOSS), 2012.
- C. Asensio, B. Beferull-Lozano, Network topology optimization
for accelerating consensus algorithms under power constraints, IEEE
International Conference on Distributed Computing in Sensor Systems
(DCOSS),
2012.
- S. Shah, B. Beferull-Lozano, In-Network Iterative Distributed
Estimation for Power-constrained Wireless Sensor Networks, IEEE
International Conference on Distributed Computing in Sensor Systems
(DCOSS),
2012.
- C. Asensio, B. Beferull-Lozano, Link scheduling in Sensor
Networks for asymmetric average consensus, IEEE International Workshop
on Signal Processing Advances in Wireless Communications (SPAWC), 2012.
- S. Shah, B. Beferull-Lozano, Power-aware Joint Sensor Selection
and Routing for Distributed Estimation: a Convex Optimization Approach,
IEEE International Conference on Distributed Computing in Sensor
Systems (DCOSS), 2012 (Best Paper Award).
- G. Hernández, B. Beferull-Lozano, Field Estimation in
Wireless Sensor Networks Using Distributed Kriging, IEEE International
Conference on Communications (ICC), June 2012.
- X. Huang, B. Beferull-Lozano, Non-Cooperative Power Allocation
Game with Imperfect Sensing Information for Cognitive Radio, IEEE
International Conference on Communications (ICC), June 2012.
- I. Khalife, B. Beferull-Lozano, Power-Constrained Sensor
Selection and Routing for Cooperative Detection in Cognitive Radios,
IEEE International Conference on Communications (ICC), June 2012.
- A. Erdozain, P. Crespo, B. Beferull-Lozano, Optimum distortion
exponent in parallel fading channels by using analog joint
source-channel coding schemes, Data Compression Conference (DCC),
Snowbird (Utah, USA), April 2012.
- C. Asensio, B. Beferull-Lozano, Asymmetric Average Consensus
Under SINR-based Interference, EUSIPCO 2012.
- G. Hernández, C. Asensio, B. Beferull-Lozano,
Distributed Estimation of Statistical Correlation Measures for Spatial
Inference in WSNs, EUSIPCO 2012.
- I. Alustiza, A. Erdozain, P. Crespo, B. Beferull-Lozano,
Bandwidth-Reduction Analog Mappings for AWGN Channels with Side
Information, EUSIPCO 2012.
- I. Alustiza, A. Erdozain, P. Crespo, B. Beferull-Lozano,
Multiple Description Analog Joint Source-Channel Coding for Parallel
Channels with Side Information, EUSIPCO 2012.
- G. Boccolini, G. Hernández, B. Beferull-Lozano, Wireless
Sensor Network for Spectrum Cartography Based on Kriging Interpolation,
IEEE PIMRC 2012.
- S. Shah, B. Beferull-Lozano, In-network local distributed
estimation for power-constrained wireless sensor networks, IEEE 75th
Vehicular Technology Conference, VTC-spring ’2012, Yokohama, Japan, May
2012.
- X. Huang, B. Beferull-Lozano, Power Allocation Optimization in
OFDM-based Cognitive Radios Based on Sensing Information, IEEE
International Conference on Acoustics, Speech, and Signal Processing
(ICASSP), Prague, 2011.
- I. Khalife, B. Beferull-Lozano, Closed-form Approximations for
Cooperative LLR-based Energy Detection in Cognitive Radios, IEEE
International Conference on Communications, Kyoto, 2011.
- A. Erdozain, P. M. Crespo, B. Beferull-Lozano, Analog Joint
Source-Channel Multiple Description Coding Scheme over AWGN Parallel
Channels, IEEE International Conference on Acoustics, Speech, and
Signal Processing (ICASSP), Prague, 2011.
- C. Asensio, B. Beferull, A greedy perturbation approach to
accelerating consensus algorithms and reducing its power consumption,
IEEE International Statistical Signal Processing Workshop, 2012.
- C. Asensio, B. Beferull-Lozano, Accelerating consensus gossip
algorithms: sparsifying networks can be good for you, IEEE
International Conference on Communications, 2010.
- C. Asensio, B. Beferull-Lozano, Finding sparse connectivity
patterns in power-constrained ad-hoc networks for accelerating
consensus algorithms, EUSIPCO 2010.
- E. Portu-Repollés, B. Beferull-Lozano, Joint sensor
selection and Routing for Distributed Estimation in Wireless Sensor
Networks, Eusipco 2009, Glasgow, Scotland, August 2009.
- K. Flouri, B. Beferull-Lozano and P. Tsakalides, Optimal Gossip
Algorithm for Distributed Consensus SVM Training in Wireless Sensor
Networks, IEEE International Conference on Digital Signal Processing,
Greece, 2009.
- K. Flouri, B. Beferull-Lozano and P. Tsakalides, Distributed
Consensus Algorithms for SVM Training in Wireless Sensor Networks,
EUSIPCO, Lausanne, 2008.
- V. Velisavljevic, B. Beferull-Lozano, M. Vetterli,
Space-Frequency Quantization using Directionlets, IEEE International
Conference on Image Processing, 2007.
- V. Velisavljevic, B. Beferull-Lozano, M. Vetterli, P.L.
Dragotti, Low-Rate Reduced Complexity Image Compression using
Directionlets, IEEE International Conference on Image Processing,
Atlanta 2006.
- K. Flouri, B. Beferull-Lozano and P. Tsakalides. Training a
SVM-based Classifier in Distributed Sensor
Networks, EUSIPCO 2006, Florence, 2006.
- K. Flouri, B. Beferull-Lozano and P. Tsakalides.
Power-efficient distributed Support Vector Machines for Wireless Sensor
Networks, European Workshop on Sensor Networks (EWSN), 2006.
- J. Acimovic, B. Beferull-Lozano and R. Cristescu. Adaptive
distributed algorithms for power-efficient data gathering in sensor
networks, IEEE International Symposium on Wireless Sensor
Networks, WirelessCom 2005, Hawai.
- V. Velisavljevic, B. Beferull-Lozano, M. Vetterli and P.L.
Dragotti. Approximation
power of
Directionlets, in Proc. of IEEE International Conference on Image
Processing (ICIP), Genova, September 2005.
- B. Beferull-Lozano, R. L. Konsbruck and M. Vetterli,
Rate-Distortion Problem for Physics Based Distributed Sensing, IEEE
Conference on Acoustics, Speech and Signal Processing (IPSN), Invited
paper,
Special Session on Distributed signal processing for sensor networks,
May 2004, Montreal, Canada.
- V. Velisavljevic, B. Beferull-Lozano, M. Vetterli and P. L.
Dragotti, Discrete
Multi-directional Wavelet Bases, in Proc. of IEEE International
Conference on Image Processing (ICIP), Barcelona, Spain, September 2003.
- B. Beferull-Lozano and A. Ortega. Efficient
Quantization for Overcomplete Expansions in R^N, in Proc.
of IEEE International Conference on Acoustics, Speech and
Signal Processing, Salt Lake City, Utah, 2001.
- S. Felici, B. Beferull-Lozano, J. Martinez,
G. Martin. "An Adaptative Video Compression algorithm
based on Wavelet Filter Banks for Best Effort Networks", in Proc. of
SoftCOM98, International Conference on Software
in Telecommunications and Computer Networks, Bari, Italy, 1998.
- B. Beferull-Lozano, E. Bonet, V. Sos, F. Toledo. "An approach
to an Orange Classifier based on the Discrete Gabor Wavelet Transform",
in Proc. of VII National Symposium on Pattern Recognition and Image
Analysis, Barcelona, Spain, April 1997.
-
Technical Reports
- B. Beferull-Lozano. Subband Image Coding and Multiscale
Perceptual Models, Department of Electronics and Computer Science,
University of Valencia, Valencia, Spain, 1997.
- B. Beferull-Lozano and Z. Cvetkovic. Geometric studies of
speech and separability of phonemes, AT&T Shannon Laboratory,
Information
Science Center, January 2002.