Showing 2015 · cs.ITShow all

31 papers · 2 filters

cs.IT2015★ 65 cited

Impact of 4D channel distribution on the achievable rates in coherent optical communication experiments

Tobias A. Eriksson, Tobias Fehenberger, Peter A. Andrekson +3

We experimentally investigate mutual information and generalized mutual information for coherent optical transmission systems. The impact of the assumed channel distribution on the…

cs.IT2015

Density Evolution for Deterministic Generalized Product Codes on the Binary Erasure Channel at High Rates

Christian Häger, Henry D. Pfister, Alexandre Graell i Amat +1

Generalized product codes (GPCs) are extensions of product codes (PCs) where code symbols are protected by two component codes but not necessarily arranged in a rectangular array.…

cs.IT2015★ 7 cited

Binary CPMs with Improved Spectral Efficiency

Malek Messai, Amina Piemontese, Giulio Colavolpe +2

We design new continuous phase modulation (CPM) formats which are based on the combination of a proper precoder with binary input and a ternary CPM. The proposed precoder constrain…

cs.IT2015

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…

cs.IT2015★ 29 cited

Out-of-Band Radiation Measure for MIMO Arrays with Beamformed Transmission

Christopher Mollén, Ulf Gustavsson, Thomas Eriksson +1

The spatial characteristics of the out-of-band radiation that a multiuser MIMO system emits in the environment, due to its power amplifiers (modeled by a polynomial model) are nonl…

cs.IT2015★ 87 cited

Waveforms for the Massive MIMO Downlink: Amplifier Efficiency, Distortion and Performance

Christopher Mollén, Erik G. Larsson, Thomas Eriksson

In massive MIMO, most precoders result in downlink signals that suffer from high PAR, independently of modulation order and whether single-carrier or OFDM transmission is used. The…

cs.IT2015★ 4 cited

On the Use of Multiple Satellites to Improve the Spectral Efficiency of Broadcast Transmissions

Andrea Modenini, Alessandro Ugolini, Amina Piemontese +1

We consider the use of multiple co-located satellites to improve the spectral efficiency of broadcast transmissions. In particular, we assume that two satellites transmit on overla…

cs.IT2015

Receiver Algorithm based on Differential Signaling for SIMO Phase Noise Channels with Common and Separate Oscillator Configurations

M. Reza Khanzadi, Rajet Krishnan, Thomas Eriksson

In this paper, a receiver algorithm consisting of differential transmission and a two-stage detection for a single-input multiple-output (SIMO) phase-noise channels is studied. Spe…

cs.IT2015

Analysis of Spatially-Coupled Counter Braids

Eirik Rosnes, Alexandre Graell i Amat

A counter braid (CB) is a novel counter architecture introduced by Lu et al. in 2007 for per-flow measurements on high-speed links. CBs achieve an asymptotic compression rate (unde…

cs.IT2015

Threshold Saturation for Spatially Coupled Turbo-like Codes over the Binary Erasure Channel

Saeedeh Moloudi, Michael Lentmaier, Alexandre Graell i Amat

In this paper we prove threshold saturation for spatially coupled turbo codes (SC-TCs) and braided convolutional codes (BCCs) over the binary erasure channel. We introduce a compac…

cs.IT2015★ 1 cited

Optimal Radio Frequency Energy Harvesting with Limited Energy Arrival Knowledge

Zhenhua Zou, Anders Gidmark, Themistoklis Charalambous +1

In this paper, we develop optimal policies for deciding when a wireless node with radio frequency (RF) energy harvesting (EH) capabilities should try and harvest ambient RF energy.…

cs.IT2015★ 84 cited

Achievable Rate of Rician Large-Scale MIMO Channels with Transceiver Hardware Impairments

Jiayi Zhang, Linglong Dai, Xinling Zhang +2

Transceiver hardware impairments (e.g., phase noise, in-phase/quadrature-phase (I/Q) imbalance, amplifier non-linearities, and quantization errors) have obvious degradation effects…

cs.IT2015★ 2 cited

Minimum Energy to Send Bits Over Multiple-Antenna Fading Channels

Wei Yang, Giuseppe Durisi, Yury Polyanskiy

This paper investigates the minimum energy required to transmit information bits with a given reliability over a multiple-antenna Rayleigh block-fading channel, with and withou…

cs.IT2015★ 11 cited

Stochastic Digital Backpropagation with Residual Memory Compensation

Naga V. Irukulapati, Domenico Marsella, Pontus Johannisson +3

Stochastic digital backpropagation (SDBP) is an extension of digital backpropagation (DBP) and is based on the maximum a posteriori principle. SDBP takes into account noise from th…

cs.IT2015★ 52 cited

On the Multivariate Gamma-Gamma () Distribution with Arbitrary Correlation and Applications in Wireless Communications

Jiayi Zhang, Michail Matthaiou, George K. Karagiannidis +1

The statistical properties of the multivariate Gamma-Gamma () distribution with arbitrary correlation have remained unknown. In this paper, we provide analytical expressions fo…

cs.IT2015

A Family of Erasure Correcting Codes with Low Repair Bandwidth and Low Repair Complexity

Siddhartha Kumar, Alexandre Graell i Amat, Iryna Andriyanova +1

We present the construction of a new family of erasure correcting codes for distributed storage that yield low repair bandwidth and low repair complexity. The construction is based…

cs.IT2015★ 21 cited

On the Required Number of Antennas in a Point-to-Point Large-but-Finite MIMO System: Outage-Limited Scenario

Behrooz Makki, Tommy Svensson, Thomas Eriksson +1

This paper investigates the performance of the point-to-point multiple-input-multiple-output (MIMO) systems in the presence of a large but finite numbers of antennas at the transmi…

cs.IT2015★ 2 cited

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…

cs.IT2015

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…

cs.IT2015★ 15 cited

On the Performance of the Relay-ARQ Networks

Behrooz Makki, Thomas Eriksson, Tommy Svensson

This paper investigates the performance of relay networks in the presence of hybrid automatic repeat request (ARQ) feedback and adaptive power allocation. The throughput and the ou…

cs.IT2015★ 13 cited

Repair Scheduling in Wireless Distributed Storage with D2D Communication

Jesper Pedersen, Alexandre Graell i Amat, Iryna Andriyanova +1

We consider distributed storage (DS) for a wireless network where mobile devices arrive and depart according to a Poisson random process. Content is stored in a number of mobile de…

cs.IT2015★ 43 cited

Statistical Modeling and Estimation of Censored Pathloss Data

Carl Gustafson, Taimoor Abbas, David Bolin +1

Pathloss is typically modeled using a log-distance power law with a large-scale fading term that is log-normal. However, the received signal is affected by the dynamic range and no…

cs.IT2015★ 227 cited

Replacing the Soft FEC Limit Paradigm in the Design of Optical Communication Systems

Alex Alvarado, Erik Agrell, Domanic Lavery +2

The FEC limit paradigm is the prevalent practice for designing optical communication systems to attain a certain bit-error rate (BER) without forward error correction (FEC). This p…

cs.IT2015★ 13 cited

On the Capacity of the Wiener Phase-Noise Channel: Bounds and Capacity Achieving Distributions

M. Reza Khanzadi, Rajet Krishnan, Johan Söder +1

In this paper, the capacity of the additive white Gaussian noise (AWGN) channel, affected by time-varying Wiener phase noise is investigated. Tight upper and lower bounds on the ca…