976 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR49 papers
- Technical University of DenmarkDK38 papers
- Aarhus UniversityDK29 papers
- University of CopenhagenDK23 papers
- Tokyo Institute of TechnologyJP19 papers
- University of ManchesterGB18 papers
- École Polytechnique Fédérale de LausanneCH17 papers
- University of OxfordGB16 papers
- Centre de Physique ThéoriqueFR14 papers
- East China Normal UniversityCN14 papers
- IMAR - Institutul de Matematică „Simion Stoilow” al Academiei RomâneRO14 papers
- Imperial College LondonGB14 papers
33 papers · 2 filters
Rank error-correcting pairs
Umberto Martínez-Peñas, Ruud Pellikaan
Error-correcting pairs were introduced independently by Pellikaan and Kötter as a general method of decoding linear codes with respect to the Hamming metric using coordinatewise pr…
A Prediction Study of Path Loss Models from 2-73.5 GHz in an Urban-Macro Environment
Timothy A. Thomas, Marcin Rybakowski, Shu Sun +4
It is becoming clear that 5G wireless systems will encompass frequencies from around 500 MHz all the way to around 100 GHz. To adequately assess the performance of 5G systems in th…
Path Loss, Shadow Fading, and Line-Of-Sight Probability Models for 5G Urban Macro-Cellular Scenarios
Shu Sun, Timothy A. Thomas, Theodore S. Rappaport +3
This paper presents key parameters including the line-of-sight (LOS) probability, large-scale path loss, and shadow fading models for the design of future fifth generation (5G) wir…
Analysis and Optimization of Sparse Random Linear Network Coding for Reliable Multicast Services
Andrea Tassi, Ioannis Chatzigeorgiou, Daniel E. Lucani
Point-to-multipoint communications are expected to play a pivotal role in next-generation networks. This paper refers to a cellular system transmitting layered multicast services t…
Refined analysis of RGHWs of code pairs coming from Garcia-Stichtenoth's second tower
Olav Geil, Stefano Martin, Umberto Martínez-Peñas +1
Asymptotically good sequences of ramp secret sharing schemes were given in [Asymptotically good ramp secret sharing schemes, arXiv:1502.05507] by using one-point algebraic geometri…
On the roots and minimum rank distance of skew cyclic codes
Umberto Martínez-Peñas
Skew cyclic codes play the same role as cyclic codes in the theory of error-correcting codes for the rank metric. In this paper, we give descriptions of these codes by root spaces,…
Propagation Path Loss Models for 5G Urban Micro- and Macro-Cellular Scenarios
Shu Sun, Theodore S. Rappaport, Sundeep Rangan +7
This paper presents and compares two candidate large-scale propagation path loss models, the alpha-beta-gamma (ABG) model and the close-in (CI) free space reference distance model,…
Broadcast Coded Slotted ALOHA: A Finite Frame Length Analysis
Mikhail Ivanov, Fredrik Brannstrom, Alexandre Graell i Amat +1
We propose an uncoordinated medium access control (MAC) protocol, called all-to-all broadcast coded slotted ALOHA (B-CSA) for reliable all-to-all broadcast with strict latency cons…
Cognitive Access-Transmission Policies under a Primary ARQ process via Chain Decoding
Nicolo Michelusi, Petar Popovski, Michele Zorzi
This paper introduces a novel technique that enables access by a cognitive secondary user (SU) to a spectrum occupied by an incumbent primary user (PU) that employs Type-I Hybrid A…
Random Access for Massive MIMO Systems with Intra-Cell Pilot Contamination
Elisabeth de Carvalho, Emil Bjornson, Erik G. Larsson +1
Massive MIMO systems, where the base stations are equipped with hundreds of antenna elements, are an attractive way to attain unprecedented spectral efficiency in future wireless n…
Network-Assisted Device-to-Device (D2D) Direct Proximity Discovery with Underlay Communication
Nuno K. Pratas, Petar Popovski
Device-to-Device communications are expected to play an important role in current and future cellular generations, by increasing the spatial reuse of spectrum resources and enablin…
Assessment of LTE Wireless Access for Monitoring of Energy Distribution in the Smart Grid
Germán C. Madueño, Jimmy J. Nielsen, Dong Min Kim +3
While LTE is becoming widely rolled out for human-type services, it is also a promising solution for cost-efficient connectivity of the smart grid monitoring equipment. This is a t…
Towards Very Large Aperture Massive MIMO: a measurement based study
Àlex Oliveras Martínez, Elisabeth De Carvalho, Jesper Ødum Nielsen
Massive MIMO is a new technique for wireless communications that claims to offer very high system throughput and energy efficiency in multi-user scenarios. The cost is to add a ver…
Multiuser Communication through Power Talk in DC MicroGrids
Marko Angjelichinoski, Cedomir Stefanovic, Petar Popovski +3
Power talk is a novel concept for communication among control units in MicroGrids (MGs), carried out without a dedicated modem, but by using power electronics that interface the co…
Power Talk in DC Micro Grids: Constellation Design and Error Probability Performance
Marko Angjelichinoski, Cedomir Stefanovic, Petar Popovski +1
Power talk is a novel concept for communication among units in a Micro Grid (MG), where information is sent by using power electronics as modems and the common bus of the MG as a c…
An Iterative Receiver for OFDM With Sparsity-Based Parametric Channel Estimation
Thomas L. Hansen, Peter B. Jørgensen, Mihai-Alin Badiu +1
In this work we design a receiver that iteratively passes soft information between the channel estimation and data decoding stages. The receiver incorporates sparsity-based paramet…
Can network coding bridge the digital divide in the Pacific?
Ulrich Speidel, 'Etuate Cocker, Péter Vingelmann +2
Conventional TCP performance is significantly impaired under long latency and/or constrained bandwidth. While small Pacific Island states on satellite links experience this in the…
On the similarities between generalized rank and Hamming weights and their applications to network coding
Umberto Martínez-Peñas
Rank weights and generalized rank weights have been proven to characterize error and erasure correction, and information leakage in linear network coding, in the same way as Hammin…
Massive MIMO for Crowd Scenarios: A Solution Based on Random Access
Jesper H. Sørensen, Elisabeth de Carvalho, Petar Popovski
This paper presents a new approach to intra-cell pilot contamination in crowded massive MIMO scenarios. The approach relies on two essential properties of a massive MIMO system, na…
Pilot Decontamination Through Pilot Sequence Hopping in Massive MIMO Systems
Jesper H. Sørensen, Elisabeth de Carvalho
This work concerns wireless cellular networks applying massive multiple-input multiple-output (MIMO) technology. In such a system, the base station in a given cell is equipped with…
A Tractable Model of the LTE Access Reservation Procedure for Machine-Type Communications
Jimmy J. Nielsen, Dong Min Kim, Germán C. Madueño +2
A canonical scenario in Machine-Type Communications (MTC) is the one featuring a large number of devices, each of them with sporadic traffic. Hence, the number of served devices in…
Broadcasting a Common Message with Variable-Length Stop-Feedback Codes
Kasper Fløe Trillingsgaard, Wei Yang, Giuseppe Durisi +1
We investigate the maximum coding rate achievable over a two-user broadcast channel for the scenario where a common message is transmitted using variable-length stop-feedback codes…
Probabilistic Handshake in All-to-all Broadcast Coded Slotted ALOHA
Mikhail Ivanov, Petar Popovski, Fredrik Brannstrom +2
We propose a probabilistic handshake mechanism for all-to-all broadcast coded slotted ALOHA. We consider a fully connected network where each user acts as both transmitter and rece…
Source Coding in Networks with Covariance Distortion Constraints
Adel Zahedi, Jan Østergaard, Søren Holdt Jensen +2
We consider a source coding problem with a network scenario in mind, and formulate it as a remote vector Gaussian Wyner-Ziv problem under covariance matrix distortions. We define a…