Ponències/Comunicacions de congressos
Recent Submissions
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Dimension spreading for coherent opportunistic communications
(Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Restricted access - publisher's policyThe waveform optimization problem for opportunistic communications is addressed, based on sensing the second-order statistics of the existing transmissions. We propose a minimum-norm waveform optimization that exhibits ... -
Learning from unequally reliable blind ensembles of classifiers
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Open AccessThe rising interest in pattern recognition and data analytics has spurred the development of a plethora of machine learning algorithms and tools. However, as each algorithm has its strengths and weaknesses, one is motivated ... -
Entropy-based covariance determinant estimation
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference lecture
Restricted access - publisher's policyAn information-theoretic approach is described to estimate the determinant of the covariance matrix of a random vector sequence (a common task in a wide range of estimation and detection problems in signal processing for ... -
Diversity techniques for blind equalization in mobile communications
(1997)
Conference report
Open AccessThis paper deals with blind equalization of mobile channels, which are either frequency-selective or multiplicative. The proposed algorithm can be used for channel distortion compensation in diversity systems subject ... -
Balancing egoistic and altruistic transmit beamforming in femtocell networks
(Institute of Electrical and Electronics Engineers (IEEE), 2011)
Conference report
Restricted access - publisher's policyIn this paper, we study the balancing of egoistic (maximum-ratio, MR) and altruistic (zero-forcing, ZF) beamforming (BF) in femtocells through simulations. To investigate the achievable gains from operating between the ... -
On a mutual information and a capacity bound gap of pilot-aided MIMO channels
(Institute of Electrical and Electronics Engineers (IEEE), 2011)
Conference report
Restricted access - publisher's policyFor single-user MIMO channels with partial re ceiver CSI, we study the difference between a lower bound and two alternative upper bounds of the mutual information achieved with Gaussian codebooks. These differences are ... -
Joint pilot and precoder design for optimal throughput
(Institute of Electrical and Electronics Engineers (IEEE), 2011)
Conference report
Restricted access - publisher's policyFor single-user, multiple-input multiple-output (MIMO) channels with Rayleigh fading correlated at the transmitter side, and where the receiver only has partial channel knowledge in form of an MMSE channel estimate, we ... -
Blind multi-user combining at the base station for asynchronous CDMA systems
(Institute of Electrical and Electronics Engineers (IEEE), 1996)
Conference report
Open AccessThis paper studies the potential benefits of antenna arrays in cellular CDMA communications and proposes a powerful scheme to undertake the array processing at the base station in CDMA mobile systems. The proposed technique ... -
Snapshot processing of high-order BOC signals in the cloud: on sensitivity and distortion effects
(ION Publications (The Institute of navigation), 2017)
Conference report
Restricted access - publisher's policyThis paper discusses the unambiguous estimation of high-order BOC signals in the cloud based on signal snapshots gathered by low-end SDR receivers. In particular, the sensitivity and distortion problems are introduced, ... -
Receive spatial modulation for massive MIMO systems
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Open AccessIn this paper, we consider the downlink of a massive multiple-input-multiple-output (MIMO) single user transmission system operating in the millimeter wave outdoor narrowband channel environment. We propose a novel receive ... -
Signal-timing offset compensation in dense TDD OFDM-based networks
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Open AccessOrthogonal Frequency Division Multiplexing (OFDM)-based networks rely on time synchronization to obtain their best performance. Time synchronization with neighboring nodes can be satisfied by increasing the cyclic prefix ... -
Cooperative linear precoding for multi-user MISO visible light communications
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Conference report
Open AccessThis paper develops and evaluates precoding techniques for coordinated joint transmission in visible light communications (VLC). A multi-user multiple-input single-output (MISO) setup is adopted. Transmitters are equipped ...
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