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Foundations and Methodologies for Future Communication and Sensor Networks

Acronym:    COMONSENS
Funder:    Spanish Government
Start date:    2008 December 15th
End date:    2014 December 31st
Web site:    http://www.comonsens.org

Partners:    Centro de Estudios e Investigaciones Técnicas de Guipuzcoa, Universidad Carlos III de Madrid, Universidad de Cantabria, Universidad de Coruña, Universidad de Sevilla, Universidad de Valencia, Universidad de Vigo, Universidad Politécnica de Madrid and Universidad Pompeu Fabra
SPCOM Participants:    Adrian Agustin de Dios, Italo Atzeni, David Bernal Casas, Margarita Cabrera Bean, Juan Fernández Rubio, Josep Font Segura, Luis García Ordóñez, Josemanuel Huerta Guillén, Meritxell Lamarca Orozco, David Matas, Olga Muñoz Medina, Alba Pagès Zamora, Adriano Pastore, Francisco Ramirez Javega, Francesc Rey Micolau, Jaume Riba Sagarra, Javier Rodríguez Fonollosa, Josep Sala Alvarez, Silvana Silva Pereira, Gregori Vázquez Grau, Josep Vidal Manzano and Javier Villares Piera
SPCOM Responsible:    Javier Rodríguez Fonollosa

Summary

Information and Communication Technologies (ICT) is not only an important sector of economic activity in its own; it is the essential engine for innovation within all knowledge-intensive domains of the European society. ICT is widely recognized as one of the driving forces in innovation. In the past decade, the growth of productivity in Europe has lagged behind the growth in competing economic zones to a large extent because of insufficient use of ICT . A quarter of the EU GDP growth, and 40% of its productivity growth, are due to ICT. Differences in economic performance between industrialized countries can be largely explained by the level of ICT investment, research, and adoption, and by the competitiveness of their information society and media industries . A clear increase in the use of ICT is necessary for this gap to be bridged.

One of the key milestones in ICT is the emergence of modern communication systems. In fact, large communication networks are among the most complex of all man-made artifacts and the proliferation of new services and communicating devices constantly places tremendous demands on their design. The evolution of contemporary communication systems, specifically, is defined by the increasing availability of broadband connections, a variety of mobile access networks, and an abundance of heterogeneous communicating and sensing devices that range from RFID chips to mobile phones, portable computers, household appliances, servers, and even classic mainframe computers. As a result, communication networks are rapidly changing in three fundamental aspects:

i) Very diverse computing, communicating and sensing devices are emerging, driven by the decreasing costs and growing interconnection capabilities. System adaptation to the capabilities of every individual device will be a major requirement for widespread intelligent applications and services. Heterogeneous and densely deployed wireless networks, which integrate sensors, processors and controllers of different nature (collectively referred to as Sensor Networks) provide the clearest example of this revolution.

ii) New functionalities and interactive services emerge as systems become progressively networked and mobile access possibilities become abundant. Personalized and multimodal human-computer interaction technologies are needed in these highly connected environments.

iii) Modern society relies on communication networks to an ever-increasing extent. This buttresses the importance of providing the technology needed to offer secure, robust and seamlessly integrated services and of providing users with a transparent interface irrespective of the actual physical connection. Enabling the convergence of heterogeneous networks and designing reliable and secure infrastructures, tolerant to subsystem failures and various attacks, is critical.

The fundamental question is then, what are the critical research challenges for the ICT sector in the 21st century? We strongly believe that the answer to this question resides in the following two main themes:

i) Communication Networks. There is an urgent need to completely rethink the architecture of wireless communication networks. Ubiquitous connectivity with wireline-like quality of service (QoS) requires transmission rates as high as two orders of magnitude above current 3G cellular networks. There is a general agreement in the engineering community that such requirements cannot be attained, in an economically sustainable way, by simply scaling up existing architectures because they would become very inefficient. Indeed, the development of more flexible, robust and efficient wireless network configurations seems possible only if radically new schemes, such as those based on the idea of cooperative communication, are devised. Thus, we are moving towards a new paradigm for wireless networking in which the relationship among nodes will be inherently collaborative, adaptive, and aimed at optimizing the flow of information. This ambitious goal demands establishing and thoroughly understanding the theoretical foundations and methodological tools involved.

ii) Sensor Networks. It is critical to develop the fundamental theory behind wireless sensor networks. Wireless sensor networks are demanded to sense the environment, detect and react to events, predict physical phenomena, self-heal, organize, and isolate faulting nodes. However, the fundamental theory needed to both understand and optimally build these systems is still far from developed. There is an imperative need to advance the theoretical characterization of sensor networks, and this can only be attained via a continued cross-fertilization among several disciplines that have traditionally been studied separately. This includes networking, information theory, and statistical learning, all of them combined with proper algorithmic development and implementation assessments in order to impact important practical applications of both societal and scientific interest.

Journal publications

[1] S. Silva Pereira, R. López-Valcarce and A. Pagès Zamora, "Parameter estimation in wireless sensor networks with faulty transducers: a distributed EM approach", EURASIP Signal Processing, Elsevier, Signal Processing https://authors.elsevier.com/a/1W90XbZX4rsob, Vol. 144C, March 2018, pp. 226 - 237.

[2] A. Pastore, M. Joham and J. R. Fonollosa, "A Framework for Joint Design of Pilot Sequence and Linear Precoder", IEEE Transactions on Information Theory, Vol. 62, No. 9, September 2016, pp. 5059 - 5079.

[3] Saeid Sedighi, Abbas Taherpour, J. Sala Alvarez and Tamer Khattab, "On the Performance of Hadamard Ratio Detector Based Spectrum Sensing for Cognitive Radios", IEEE Transactions on Signal Processing, Vol. 63, No. 14, July 2015, pp. 3809 - 3824.

[4] R. López-Valcarce, Javier Villares, J. Riba Sagarra, W. Gappmair and C. Mosquera, "Cramér-Rao Bounds for SNR Estimation of Oversampled Linearly Modulated Signals", IEEE Transactions on Signal Processing, Vol. 63, No. 7, April 2015, pp. 1675 - 1683.

[5] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Single and Multi-Frequency Wideband Spectrum Sensing with Side-Information", IET Signal Processing, Vol. 8, No. 8, October 2014, pp. 831 - 843.

[6] A. Pastore, T. Koch and J. R. Fonollosa, "A Rate-Splitting Approach to Fading Channels with Imperfect Channel-State Information", IEEE Transactions on Information Theory, Vol. 60, No. 7, July 2014, pp. 4266 - 4285.

[7] Italo Atzeni, L. G. Ordóñez, G. Scutari, D. P. Palomar and J. R. Fonollosa, "Noncooperative Day-Ahead Bidding Strategies for Demand-Side Expected Cost Minimization with Real-Time Adjustments: A GNEP Approach", IEEE Transactions on Signal Processing, Vol. 62, No. 9, May 2014, pp. 2397 - 2412.

[8] J. Riba Sagarra, J. Font-Segura, Javier Villares and G. Vázquez, "Frequency-Domain GLR Detection of a Second-Order Cyclostationary Signal Over Fading Channels", IEEE Transactions on Signal Processing, Vol. 62, No. 8, March 2014, pp. 1899 - 1912.

[9] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Nonuniform Sampling Walls in Wideband Signal Detection", IEEE Transactions on Signal Processing, Vol. 62, No. 1, January 2014, pp. 44 - 55.

[10] Saeid Sedighi, Abbas Taherpour and J. Sala Alvarez, "Spectrum Sensing Using Correlated Receiving Multiple Antennas in Cognitive Radios", IEEE Transactions on Wireless Communications, Vol. 12, No. 11, November 2013, pp. 5754 - 5766.

[11] Italo Atzeni, L. G. Ordóñez, G. Scutari, D. P. Palomar and J. R. Fonollosa, "Demand-Side Management via Distributed Energy Generation and Storage Optimization", IEEE Transaction on Smart Grid, Vol. 4, No. 2, June 2013, pp. 866 - 876.

[12] S. Silva Pereira, R. López-Valcarce and A. Pagès Zamora, "A Diffusion-Based EM Algorithm for Distributed Estimation in Unreliable Sensor Networks (DOI 10.1109/LSP.2013.2260329)", IEEE Signal Processing Letters, Vol. 20, No. 6, June 2013, pp. 595 - 598.

[13] Italo Atzeni, L. G. Ordóñez, G. Scutari, D. P. Palomar and J. R. Fonollosa, "Noncooperative and Cooperative Optimization of Distributed Energy Generation and Storage in the Demand-side of the Smart Grid", IEEE Transactions on Signal Processing, Vol. 61, No. 10, May 2013, pp. 2454 - 2472.

[14] S. Lagén, A. Agustin de Dios and J. Vidal, "Network-MIMO for downlink in-band relay transmissions", EURASIP Journal on Wireless Communications and Networking, January 2013.

[15] L. G. Ordóñez, D. P. Palomar and J. R. Fonollosa, "Array Gain in the DMT Framework for MIMO Channels", IEEE Transactions on Information Theory, Vol. 58, No. 7, July 2012, pp. 4577 - 4593.

[16] J. Sala Alvarez, G. Vazquez-Vilar and R. López-Valcarce, "Multiantenna GLR detection of rank-one signals with known power spectrum in white noise with unknown spatial correlation", IEEE Transactions on Signal Processing, Vol. 60, No. 6, June 2012, pp. 3065 - 3078.

[17] J. Sala Alvarez, F. Rey Micolau and Javier Villares, "Asymptotically optimum energy profile for Successive Interference Cancellation in DS-CDMA under a power unbalance constraint", IEEE Communications Letters, Vol. 16, No. 2, February 2012, pp. 172 - 175.

[18] S. Silva Pereira and A. Pagès Zamora, "Consensus in Correlated Random Wireless Sensor Networks", IEEE Transactions on Signal Processing, Vol. 59, No. 12, December 2011, pp. 6279 - 6284.

[19] G. Vazquez-Vilar, R. López-Valcarce and J. Sala Alvarez, "Multiantenna spectrum sensing using spectral a priori information", IEEE Transactions on Wireless Communications, Vol. 10, No. 12, December 2011, pp. 4345 - 4355.

[20] J. Sala Alvarez, Javier Villares and F. Rey Micolau, "Asymptotic and Finite User PER Analysis of Successive Interference Cancellation for DS-CDMA", IEEE Communications Letters, Vol. 15, No. 11, November 2011, pp. 1145 - 1147.

[21] A. Moral, J. Vidal, J. Pérez, A. Agustin de Dios, N. Marina and A. Host-Madsen, "Techno-economic evaluation of cooperative relaying transmission techniques in OFDM cellular networks", EURASIP Journal on Advances in Signal Processing, Special Issue on Cooperative MIMO Multicell Networks, Vol. 2011, February 2011, pp. 1 - 23.

[22] E. Calvo Page, D. P. Palomar, J. R. Fonollosa and J. Vidal, "On the Computation of the Capacity Region of the Discrete MAC", IEEE Transactions on Communications, Vol. 58, No. 12, December 2010, pp. 3512 - 3525.

[23] J. Riba Sagarra, Javier Villares and G. Vázquez, "A Nondata-Aided SNR Estimation Technique for Multilevel Modulations Exploiting Signal Cyclostationarity", IEEE Transactions on Signal Processing, Vol. 58, No. 11, November 2010, pp. 5767 - 5778.

[24] D. Matas and M. Lamarca, "Optimum power allocation and bit loading for BICM systems", IEEE Transactions on Communications, Vol. 58, No. 8, August 2010, pp. 2314 - 2323.

[25] I. Kovács, L. G. Ordóñez, Miguel Navarro, E. Calvo Page and J. R. Fonollosa, "Towards a Reconfigurable MIMO Downlink Air Interface and Radio Resource Management: The SURFACE Concept", IEEE Communications Magazine, Radio Communications Series, Vol. 48, No. 6, June 2010, pp. 22 - 29.

[26] S. Silva Pereira and A. Pagès Zamora, "Mean Square Convergence of Consensus Algorithms in Random WSNs", IEEE Transactions on Signal Processing, Vol. 58, No. 5, May 2010, pp. 2866 - 2874.

[27] F. Rey Micolau, M. Lamarca and G. Vázquez, "Linear Precoder Design Through Cut-Off Rate Maximization in MIMO-OFDM Coded Systems With Imperfect CSIT", IEEE Transactions on Signal Processing, IEEE TRANSACTIONS ON SIGNAL PROCESSING,, Vol. 58, No. 3, March 2010, pp. 1741 - 1755.

[28] E. Calvo Page, J. Vidal and J. R. Fonollosa, "Optimal Resource Allocation in Relay-Assisted Cellular Networks With Partial CSI", IEEE Transactions on Signal Processing, Vol. 57, No. 7, July 2009, pp. 2809 - 2823.

[29] L. G. Ordóñez, D. P. Palomar, A. Pagès Zamora and J. R. Fonollosa, "Minimum BER Linear MIMO Transceivers with Adaptive Number of Substreams", IEEE Transactions on Signal Processing, Vol. 57, No. 6, June 2009, pp. 2336 - 2353.

[30] F. Rey Micolau, M. Lamarca and G. Vázquez, "Adaptive Interleaver Based on Rate-Compatible Punctured Convolutional Codes", IEEE Transactions on Communications, Vol. 57, No. 6, June 2009, pp. 1593 - 1598.

[31] L. G. Ordóñez, D. P. Palomar and J. R. Fonollosa, "Ordered Eigenvalues of a General Class of Hermitian Random Matrices with Application to Performance Analysis of MIMO Systems", IEEE Transactions on Signal Processing, Vol. 57, No. 2, February 2009, pp. 672 - 689.

Conference publications

[1] J. Font-Segura, J. Riba Sagarra and G. Vázquez, "Sphericity Minimum Description Length: Asymptotic Performance Under Unknown Noise Variance", IEEE International Symposium on Information Theory, June 2015.

[2] A. Agustin de Dios, S. Lagén and J. Vidal, "Channel Training Procedures for MIMO Interfering Point-to-Multipoint Channel", IEEE Global Communications Conference, December 2014.

[3] R. López-Valcarce, S. Silva Pereira and A. Pagès Zamora, "Distributed Total Least Squares Estimation over Networks", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2014.

[4] Javier Villares, J. Sala Alvarez and F. Rey Micolau, "Interference Power Recycling in Two-Scale Ad-Hoc Wireless Networks", IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE International Conference on Acoustics, Speech and Signal Processing, May 2014, pp. 4768 - 4772.

[5] S. Lagén, A. Agustin de Dios and J. Vidal, "Improper Gaussian signaling for the Z-Interference Channel", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2014.

[6] J. Font-Segura, J. Riba Sagarra, Javier Villares and G. Vázquez, "Frequency-Domain GLR Detection of Cyclostationary Signals in Frequency-Selective Channels", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2014, pp. 5769 - 5773.

[7] S. Lagén, A. Agustin de Dios and J. Vidal, "Decentralized Beamforming with Coordinated Sounding for Inter-Cell Interference Management", European Wireless, May 2014.

[8] A. Pastore, T. Koch and J. R. Fonollosa, "A Rate-Splitting Approach to Fading Multiple-Access Channels with Imperfect Channel-State Information", IEEE International Zurich Seminar on Broadband Communications, February 2014, pp. 9 - 12.

[9] S. Lagén, A. Agustin de Dios and J. Vidal, "Distributed Inter-Cluster Interference Management for CoMP-based Cellular Networks", IEEE Global Communications Conference, December 2013.

[10] F. Rey Micolau and J. Sala Alvarez, "Stochastic Dynamic Systems in PHY Abstraction", IEEE Asilomar Conference on Signals, Systems and Computers, November 2013, pp. 1 - 5.

[11] A. Pastore, Jakob Hoydis and J. R. Fonollosa, "Sharpened Capacity Lower Bounds of Fading MIMO Channels with Imperfect CSI", IEEE International Symposium on Information Theory, July 2013, pp. 1 - 5.

[12] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Sampling Walls in Signal Detection of Bernoulli Nonuniformly Sampled Signals", IEEE International Conference on Communications, June 2013.

[13] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Exploiting Cognitive Cyclostationary Noise Subspace for Noncognitive Spectrum Sensing", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2013.

[14] J. Font-Segura, J. Riba Sagarra, Javier Villares and G. Vázquez, "Quadratic Sphericity Test for Blind Detection Over Time-Varying Frequency-Selective Fading Channels", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2013, pp. 1 - 5.

[15] Italo Atzeni, L. G. Ordóñez, G. Scutari, D. P. Palomar and J. R. Fonollosa, "Cooperative day-ahead Bidding Strategies for Demand-Side Expected Cost Minimization", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2013, pp. 5224 - 5228.

[16] S. Silva Pereira, A. Pagès Zamora and R. López-Valcarce, "A Diffusion-based distributed EM Algorithm for Density Estimation in Wireless Sensor Networks", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2013, pp. 4449 - 4453.

[17] M. Joham, A. Gründinger, A. Pastore, J. R. Fonollosa and W. Utschick, "Rate Balancing in the Vector BC with Erroneous CSI at the Receivers", Conference on Information Sciences and Systems, March 2013, pp. 1 - 6.

[18] A. Pastore, T. Koch and J. R. Fonollosa, "Improved Capacity Lower Bounds for Fading Channels with Imperfect CSI Using Rate Splitting", IEEE Convention of Electrical and Electronics Engineers in Israel, November 2012, pp. 1 - 5.

[19] Italo Atzeni, L. G. Ordóñez, G. Scutari, D. P. Palomar and J. R. Fonollosa, "Day-Ahead Bidding Strategies for Demand-Side Expected Cost Minimization", IEEE International Conference on Smart Grid Communications, November 2012, pp. 1 - 6.

[20] O. Muñoz Medina, A. Agustin de Dios and J. Vidal, "MCS and Sub-band Selection for Downlink Interference Coordination in LTE-A Femtocells", IEEE Vehicular Technology Conference Fall, Vehicular Technology Conference, VTC-Fall 2012, September 2012, September 2012.

[21] F. Ramirez Javega, M. Lamarca and Javier Villares, "Binary Graphs and Message Passing Strategies for Compressed Sensing in the Noiseless Setting", IEEE International Symposium on Information Theory, July 2012, pp. 1 - 5.

[22] A. Pastore and J. R. Fonollosa, "Optimal Pilot Design and Power Control in Correlated MISO Links", IEEE International Conference on Communications, June 2012.

[23] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Asymptotic Error Exponents in Energy-Detector and Estimator-Correlator Signal Detection", IEEE International Conference on Communications, June 2012, pp. 1 - 5.

[24] A. Agustin de Dios, J. Vidal, O. Muñoz Medina and J. R. Fonollosa, "Decentralized Weighted Sum Rate Maximization in MIMO-OFDMA Femtocell Networks", IEEE Global Communications Conference, The Second GlobeCom Workshop on Femtocell Networks, December 2011.

[25] O. Muñoz Medina, J. Vidal, A. Agustin de Dios, A. Pascual Iserte and S. Barbarossa, "Coordinated MIMO Precoding for Power Minimization in Femtocell Systems", IEEE Global Communications Conference, The Second GlobeCom Workshop on Femtocell Networks, December 2011, pp. 191 - 196.

[26] S. Silva Pereira and A. Pagès Zamora, "When Gossip Meets Consensus: Convergence in Correlated Random WSNs", International Conference on Wireless Technologies for Humanitarian Relief, December 2011.

[27] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Novel Periodogram and Capon Spectral Analysis Based on Nonuniform Sampling", IEEE Global Communications Conference, December 2011, pp. 1 - 5.

[28] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Noise Enhancement and SNR Equivalence in Bernoulli Nonuniform Sampling", International Conference on Cognitive Radio and Advanced Spectrum Management, October 2011, pp. 1 - 5.

[29] J. Sala Alvarez, "Multiantenna GLR Detection of a Gaussian Signal in Spatially Uncorrelated Noise", European Signal Processing Conference, Nineteenth, Vol. 1, September 2011, pp. 2069 - 2073.

[30] A. Pastore, M. Joham and J. R. Fonollosa, "Joint pilot and precoder design for optimal throughput", IEEE International Symposium on Information Theory, August 2011.

[31] F. Ramirez Javega, D. Matas and M. Lamarca, "Adaptive Sampling for Fast Sparsity Pattern Recovery", European Signal Processing Conference, August 2011, pp. 348 - 352.

[32] A. Agustin de Dios and J. Vidal, "Weighted Sum Rate Maximization for the MIMO X Channel through MMSE Precoding", IEEE International Symposium on Information Theory, August 2011, pp. 1 - 5.

[33] A. Agustin de Dios, J. Vidal, S. Lagén and E. Valera, "Network MIMO for Downlink in-band relay transmissions with relaying phases of fixed duration", European Signal Processing Conference, August 2011.

[34] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Compressed Correlation-Matching for Spectrum Sensing in Sparse Wideband Regimes", IEEE International Conference on Communications, July 2011, pp. 1 - 5.

[35] J. Font-Segura, G. Vázquez and J. Riba Sagarra, "Multi-Frequency GLRT Spectrum Sensing for Wideband Cognitive Radio", IEEE International Conference on Communications, July 2011, pp. 1 - 5.

[36] S. Silva Pereira and A. Pagès Zamora, "Consensus in random WSNs with correlated symmetric links", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2011, pp. 126 - 130.

[37] O. Muñoz Medina, A. Pascual Iserte, Pau Baquero and J. Vidal, "Preemption and QoS Management Algorithms for Coordinated and Uncoordinated Base Stations", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2011, pp. 486 - 490.

[38] A. Pastore, M. Joham and J. R. Fonollosa, "On a Mutual Information and a Capacity Bound Gap of Pilot-Aided MIMO Channels", IEEE International Conference on Communications, June 2011.

[39] A. Agustin de Dios and J. Vidal, "Improved Interference Alignment Precoding for the MIMO X Channel", IEEE International Conference on Communications, June 2011, pp. 1 - 5.

[40] A. Agustin de Dios, J. Vidal and O. Muñoz Medina, "Interference Pricing for Self-organisation in OFDMA Femtocell Networks", ICT Summit on Mobile and Wireless Communications, Future Network and Mobile Summit 2011 Conference Proceedings, June 2011, pp. 1 - 8.

[41] L. G. Ordóñez, D. P. Palomar and J. R. Fonollosa, "DMA tradeoff for the MIMO static half-duplex relay", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2011, pp. 361 - 365.

[42] J. Vidal, A. Agustin de Dios, S. Lagén, E. Valera, O. Muñoz Medina, A. Garcia Armada and M. Sánchez Fernández, "Network-MIMO Backhauling for QoS-constrained Relay Transmissions", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2011.

[43] L. G. Ordóñez, D. P. Palomar and J. R. Fonollosa, "Fundamental Diversity, Multiplexing, and Array Gain Tradeoff under different MIMO Channel Models", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2011.

[44] F. Ramirez Javega and M. Lamarca, "Variable-Length Source Compression Using Successive Refinement and Non-linear Graph-Based Codes", Data Compression Conference, March 2011.

[45] A. Pastore, M. Joham and J. R. Fonollosa, "On a Rate Region Approximation of MIMO Channels under Partial CSI", International ITG Workshop on Smart Antennas, February 2011.

[46] D. Matas, M. Lamarca and J. Garcia-Frias, "Non-Linear Graph-Based Codes for Joint Source-Channel Coding", International Symposium on Turbo Codes & Iterative Information Processing, September 2010.

[47] F. Ramirez Javega, M. Lamarca and J. Garcia-Frias, "Progressive encoding with non-linear source codes for compression of low-entropy sources", International Symposium on Turbo Codes & Iterative Information Processing, September 2010.

[48] L. G. Ordóñez, D. P. Palomar and J. R. Fonollosa, "On the Diversity, Multiplexing, and Array Gain Tradeoff in MIMO Channels", IEEE International Symposium on Information Theory, June 2010, pp. 2183 - 2187.

[49] A. Agustin de Dios, J. Vidal and O. Muñoz Medina, "Performance of downlink schedulers with superposed or orthogonal transmissions", IEEE International Conference on Communications, May 2010, pp. 1 - 5.

[50] S. Silva Pereira and A. Pagès Zamora, "Randomized transmission power for accelerated consensus in asymmetric WSNs", International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, December 2009.

[51] A. Pastore, M. Joham and J. R. Fonollosa, "Mutual information bounds for MIMO channels under imperfect receiver CSI", IEEE Asilomar Conference on Signals, Systems and Computers, November 2009, pp. 1456 - 1460.

[52] D. Matas, M. Lamarca and J. Garcia-Frias, "Non-linear graph-based codes for source coding", IEEE Information Theory Workshop, October 2009.

[53] C. Fernandez Prades, D. Bernal Casas and J. Fernández Rubio, "Plataforma de conformación de haz digital para receptores GNSS en tiempo real", Simposium Nacional de la Unión Científica Internacional de Radio, September 2009.

[54] C. Fernandez Prades, D. Bernal Casas and J. Fernández Rubio, "Correlador doble delta para GPS en tiempo real", Simposium Nacional de la Unión Científica Internacional de Radio, September 2009.

[55] M. Lamarca, "Linear precoding for mutual information maximization in MIMO systems", IEEE Information Theory Workshop, Intl. Symposium on Wireless Communication Systems, September 2009.

[56] E. Calvo Page, J. R. Fonollosa and J. Vidal, "On the Totally Asynchronous Interference Channel with Single-User Receivers", IEEE International Symposium on Information Theory, July 2009, pp. 2587 - 2591.

[57] A. Agustin de Dios, J. Vidal and O. Muñoz Medina, "Protocols and resource allocation for the two-way relay channel with half-duplex terminals", IEEE International Conference on Communications, June 2009.

[58] A. Agustin de Dios, J. Vidal and O. Muñoz Medina, "Adaptive bitrate and resource allocation for relay-assisted ARQ transmissions", IEEE International Conference on Communications, June 2009.

[59] D. Matas and M. Lamarca, "Optimum Power Allocation and Bit Loading with Code Rate Constraints", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2009.

[60] Y. Hu, J. Garcia-Frias and M. Lamarca, "MMSE Decoding for Analog Joint Source Channel Coding Using Monte Carlo Importance Sampling", IEEE International Workshop on Signal Processing Advances for Wireless Communications, June 2009.

[61] A. Agustin de Dios, J. Vidal and O. Muñoz Medina, "Analytical Resource Optimization for the DF Relay-assisted Transmission under HARQ", IEEE Vehicular Technology Conference Spring, April 2009.

[62] P. Closas Gómez, A. Pagès Zamora and J. Fernández Rubio, "A Game Theoretical algorithm for joint power and topology control in distributed WSN", IEEE International Conference on Acoustics, Speech and Signal Processing, April 2009, pp. 2765 - 2768.

[63] S. Silva Pereira and A. Pagès Zamora, "Fast Mean Square Convergence of Consensus Algorithms in WSNs with Random Topologies", IEEE International Conference on Acoustics, Speech and Signal Processing, April 2009.

[64] Y. Hu, J. Garcia-Frias and M. Lamarca, "Analog Joint Source Channel Coding Using Space-Filling Curves and MMSE Decoding", Data Compression Conference, March 2009.

[65] A. Pagès Zamora, "PFC Master Thesis Vacancy", Simposium Nacional de la Unión Científica Internacional de Radio, May 2005.

[66] , "Performance of downlink schedulers with superposed or orthogonal transmissions", IEEE International Conference on Communications, .

[67] , "Performance of downlink schedulers with superposed or orthogonal transmissions", IEEE International Conference on Communications, .

Patents

[1] J. R. Fonollosa, A. Agustin de Dios, O. Muñoz Medina and J. Vidal, "Methods and systems for decentralized managing of neighboring femtocells OEPM" December 2014.

[2] J. R. Fonollosa, A. Agustin de Dios, O. Muñoz Medina and J. Vidal, "Methods and systems for decentralized managing of neighboring femtocells USPTO" August 2013.