Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GothenburgSE951 papers
- Centre National de la Recherche ScientifiqueFR805 papers
- Leiden UniversityNL590 papers
- Max Planck Institute for Radio AstronomyDE405 papers
- European Southern ObservatoryCL356 papers
- Center for Astrophysics Harvard & SmithsonianUS313 papers
- Leiden Observatory304 papers
- California Institute of TechnologyUS296 papers
- National Astronomical Observatory of JapanJP280 papers
- Observatoire de ParisFR268 papers
- Stockholm UniversitySE262 papers
- Centro de AstrobiologíaES252 papers
24 papers · 2 filters
Error Floor Analysis of Coded Slotted ALOHA over Packet Erasure Channels
Mikhail Ivanov, Fredrik Brannstrom, Alexandre Graell i Amat +1
We present a framework for the analysis of the error floor of coded slotted ALOHA (CSA) for finite frame lengths over the packet erasure channel. The error floor is caused by stopp…
Short-Packet Communications over Multiple-Antenna Rayleigh-Fading Channels
Giuseppe Durisi, Tobias Koch, Johan Östman +2
Motivated by the current interest in ultra-reliable, low-latency, machine-type communication systems, we investigate the tradeoff between reliability, throughput, and latency in th…
On the Impact of Hardware Impairments on Massive MIMO
Ulf Gustavsson, Cesar Sanchéz-Perez, Thomas Eriksson +6
Massive multi-user (MU) multiple-input multiple-output (MIMO) systems are one possible key technology for next generation wireless communication systems. Claims have been made that…
Four-Dimensional Coded Modulation with Bit-wise Decoders for Future Optical Communications
Alex Alvarado, Erik Agrell
Coded modulation (CM) is the combination of forward error correction (FEC) and multilevel constellations. Coherent optical communication systems result in a four-dimensional (4D) s…
Terminated and Tailbiting Spatially-Coupled Codes with Optimized Bit Mappings for Spectrally Efficient Fiber-Optical Systems
Christian Häger, Alexandre Graell i Amat, Fredrik Brännström +2
We study the design of spectrally efficient fiber-optical communication systems based on different spatially coupled (SC) forward error correction (FEC) schemes. In particular, we…
Green communication via Type-I ARQ: Finite block-length analysis
Behrooz Makki, Tommy Svensson, Michele Zorzi
This paper studies the effect of optimal power allocation on the performance of communication systems utilizing automatic repeat request (ARQ). Considering Type-I ARQ, the problem…
Finite Block-length Analysis of the Incremental Redundancy HARQ
Behrooz Makki, Tommy Svensson, Michele Zorzi
This letter studies the power-limited throughput of a communication system utilizing incremental redundancy (INR) hybrid automatic repeat request (HARQ). We use some recent results…
Reinforcement-based data transmission in temporally-correlated fading channels: Partial CSIT scenario
Behrooz Makki, Tommy Svensson, Merouane Debbah
Reinforcement algorithms refer to the schemes where the results of the previous trials and a reward-punishment rule are used for parameter setting in the next steps. In this paper,…
Massive MIMO with Non-Ideal Arbitrary Arrays: Hardware Scaling Laws and Circuit-Aware Design
Emil Björnson, Michail Matthaiou, Mérouane Debbah
Massive multiple-input multiple-output (MIMO) systems are cellular networks where the base stations (BSs) are equipped with unconventionally many antennas, deployed on co-located o…
Capacity of SIMO and MISO Phase-Noise Channels with Common/Separate Oscillators
M. Reza Khanzadi, Giuseppe Durisi, Thomas Eriksson
In multiple antenna systems, phase noise due to instabilities of the radio-frequency (RF) oscillators, acts differently depending on whether the RF circuitries connected to each an…
On the Information Loss of the Max-Log Approximation in BICM Systems
Mikhail Ivanov, Christian Häger, Fredrik Brännström +3
We present a comprehensive study of the information rate loss of the max-log approximation for -ary pulse-amplitude modulation (PAM) in a bit-interleaved coded modulation (BICM)…
Effect of Synchronizing Coordinated Base Stations on Phase Noise Estimation
M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson
In this paper, we study the problem of oscillator phase noise (PN) estimation in coordinated multi-point (CoMP) transmission systems. Specifically, we investigate the effect of pha…
Estimation of phase noise in oscillators with colored noise sources
M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson
In this letter we study the design of algorithms for estimation of phase noise (PN) with colored noise sources. A soft-input maximum a posteriori PN estimator and a modified soft-i…
Spatially Coupled Turbo Codes: Principles and Finite Length Performance
Alexandre Graell i Amat, Saeedeh Moloudi, Michael Lentmaier
In this paper, we give an overview of spatially coupled turbo codes (SC-TCs), the spatial coupling of parallel and serially concatenated convolutional codes, recently introduced by…
Braided Convolutional Codes -- A Class of Spatially Coupled Turbo-Like Codes
Michael Lentmaier, Saeedeh Moloudi, Alexandre Graell i Amat
In this paper, we investigate the impact of spatial coupling on the thresholds of turbo-like codes. Parallel concatenated and serially concatenated convolutional codes as well as b…
Oscillator Phase Noise and Small-Scale Channel Fading in Higher Frequency Bands
M. Reza Khanzadi, Rajet Krishnan, Dan Kuylenstierna +1
This paper investigates the effect of oscillator phase noise and channel variations due to fading on the performance of communication systems at frequency bands higher than 10GHz.…
Diversity versus Multiplexing at Finite Blocklength
Johan Östman, Wei Yang, Giuseppe Durisi +1
A finite blocklenth analysis of the diversity-multiplexing tradeoff is presented, based on nonasymptotic bounds on the maximum channel coding rate of multiple-antenna block-memoryl…
Optimum Power Control at Finite Blocklength
Wei Yang, Giuseppe Caire, Giuseppe Durisi +1
This paper investigates the maximal channel coding rate achievable at a given blocklength and error probability , when the codewords are subject to a long-term (i.e., averag…
On the MIMO Capacity with Residual Transceiver Hardware Impairments
Xinlin Zhang, Michail Matthaiou, Emil Björnson +2
Radio-frequency (RF) impairments in the transceiver hardware of communication systems (e.g., phase noise (PN), high power amplifier (HPA) nonlinearities, or in-phase/quadrature-pha…
Power Scaling of Uplink Massive MIMO Systems with Arbitrary-Rank Channel Means
Qi Zhang, Shi Jin, Kai-Kit Wong +2
This paper investigates the uplink achievable rates of massive multiple-input multiple-output (MIMO) antenna systems in Ricean fading channels, using maximal-ratio combining (MRC)…
Oversampling Increases the Pre-Log of Noncoherent Rayleigh Fading Channels
Meik Dörpinghaus, Günther Koliander, Giuseppe Durisi +2
We analyze the capacity of a continuous-time, time-selective, Rayleigh block-fading channel in the high signal-to-noise ratio (SNR) regime. The fading process is assumed stationary…
Capacity of a Nonlinear Optical Channel with Finite Memory
Erik Agrell, Alex Alvarado, Giuseppe Durisi +1
The channel capacity of a nonlinear, dispersive fiber-optic link is revisited. To this end, the popular Gaussian noise (GN) model is extended with a parameter to account for the fi…
Spatially-Coupled LDPC Codes for Decode-and-Forward Relaying of Two Correlated Sources over the BEC
Stefan Schwandter, Alexandre Graell i Amat, Gerald Matz
We present a decode-and-forward transmission scheme based on spatially-coupled low-density parity-check (SC-LDPC) codes for a network consisting of two (possibly correlated) source…
Capacity bounds for MIMO microwave backhaul links affected by phase noise
Giuseppe Durisi, Alberto Tarable, Christian Camarda +2
We present bounds and a closed-form high-SNR expression for the capacity of multiple-antenna systems affected by Wiener phase noise. Our results are developed for the scenario wher…