46 citations · 144 across the 32 of their papers we have counts for
24 papers · 1 filter
On Dominant Interference in Random Networks and Communication Reliability
Dong Liu, Baptiste Cavarec, Lars K. Rasmussen +1
In this paper, we study the characteristics of dominant interference power with directional reception in a random network modelled by a Poisson Point Process. Additionally, the Lap…
Golden Angle Modulation: Approaching the AWGN Capacity
Peter Larsson, Lars K. Rasmussen, Mikael Skoglund
In this work, targeting, e.g., future generation cellular, microwave-links, or optical fiber systems, we propose a new geometric shaping design for golden angle modulation (GAM) ba…
The Golden Quantizer: The Complex Gaussian Random Variable Case
Peter Larsson, Lars K. Rasmussen, Mikael Skoglund
The problem of quantizing a circularly-symmetric complex Gaussian random variable is considered. For this purpose, we design two non-uniform quantizers, a high-rate-, and a Lloyd-M…
The Matrix Exponential Distribution - A Tool for Wireless System Performance Analysis
Peter Larsson, Lars K. Rasmussen, Mikael Skoglund
In [1], we introduced a new, matrix algebraic, performance analysis framework for wireless systems with fading channels based on the matrix exponential distribution. The main idea…
Effective Capacity of Retransmission Schemes - A Recurrence Relation Approach
Peter Larsson, James Gross, Hussein Al-Zubaidy +2
We consider the effective capacity performance measure of persistent- and truncated-retransmission schemes that can involve any combination of multiple transmissions per packet, mu…
Cooperative Communication Using Network Coding
Nan Li, Lars K. Rasmussen, Ming Xiao
We consider a cognitive radio network scenario where a primary transmitter and a secondary transmitter, respectively, communicate a message to their respective primary receiver and…
On the Transmit Beamforming for MIMO Wiretap Channels: Large-System Analysis
Maksym A. Girnyk, Frédéric Gabry, Mikko Vehkaperä +2
With the growth of wireless networks, security has become a fundamental issue in wireless communications due to the broadcast nature of these networks. In this work, we consider MI…
On the Optimal Precoding for MIMO Gaussian Wire-Tap Channels
Arash Khabbazibasmenj, Maksym A. Girnyk, Sergiy A. Vorobyov +2
We consider the problem of finding secrecy rate of a multiple-input multiple-output (MIMO) wire-tap channel. A transmitter, a legitimate receiver, and an eavesdropper are all equip…
Rateless Codes for the Multi-Way Relay Channel
Iqbal Hussain, Ming Xiao, Lars K. Rasmussen
We consider distributed Luby transform (DLT) codes for efficient packet transmission in a multi-way relay network, where the links are modeled as erasure channels. Density evolutio…
Causal/Predictive Imperfect Channel State Information in Block-Fading Channels
Khoa D. Nguyen, Nick Letzepis, Albert Guillen i Fabregas +1
We consider a multi-input multi-output (MIMO) block-fading channel with a general model for channel state information at the transmitter (CSIT). The model covers systems with causa…
Large-System Analysis of Correlated MIMO Multiple Access Channels with Arbitrary Signaling in the Presence of Interference
Maksym A. Girnyk, Mikko Vehkaperä, Lars K. Rasmussen
Presence of multiple antennas on both sides of a communication channel promises significant improvements in system throughput and power efficiency. In effect, a new class of large…
Analysis of Sparse Representations Using Bi-Orthogonal Dictionaries
Mikko Vehkaperä, Yoshiyuki Kabashima, Saikat Chatterjee +3
The sparse representation problem of recovering an N dimensional sparse vector x from M < N linear observations y = Dx given dictionary D is considered. The standard approach is to…
MIMO ARQ with Multi-bit Feedback: Outage Analysis
Khoa D. Nguyen, Lars K. Rasmussen, Albert Guillen i Fabregas +1
We study the asymptotic outage performance of incremental redundancy automatic repeat request (INR-ARQ) transmission over the multiple-input multiple-output (MIMO) block-fading cha…
Bounds on Thresholds Related to Maximum Satisfiability of Regular Random Formulas
Vishwambhar Rathi, Erik Aurell, Lars Rasmussen +1
We consider the regular balanced model of formula generation in conjunctive normal form (CNF) introduced by Boufkhad, Dubois, Interian, and Selman. We say that a formula is -sat…
Bounds on Threshold of Regular Random -SAT
Vishwambhar Rathi, Erik Aurell, Lars Rasmussen +1
We consider the regular model of formula generation in conjunctive normal form (CNF) introduced by Boufkhad et. al. We derive an upper bound on the satisfiability threshold and NAE…
Adaptive Decoding of LDPC Codes with Binary Messages
Ingmar Land, Gottfried Lechner, Lars K. Rasmussen
A novel adaptive binary decoding algorithm for LDPC codes is proposed, which reduces the decoding complexity while having a comparable or even better performance than corresponding…
Power Allocation for Fading Channels with Peak-to-Average Power Constraints
Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K. Rasmussen
Power allocation with peak-to-average power ratio constraints is investigated for transmission over Nakagami-m fading channels with arbitrary input distributions. In the case of de…
A Tight Lower Bound to the Outage Probability of Discrete-Input Block-Fading Channels
Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K. Rasmussen
In this correspondence, we propose a tight lower bound to the outage probability of discrete-input Nakagami-m block-fading channels. The approach permits an efficient method for nu…
Power Allocation for Discrete-Input Delay-Limited Fading Channels
Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K. Rasmussen
We consider power allocation algorithms for fixed-rate transmission over Nakagami-m non-ergodic block-fading channels with perfect transmitter and receiver channel state informatio…
Power Allocation for Discrete-Input Non-Ergodic Block-Fading Channels
Khoa D. Nguyen, Albert Guillen i Fabregas, Lars K. Rasmussen
We consider power allocation algorithms for fixed-rate transmission over Nakagami-m non-ergodic block-fading channels with perfect transmitter and receiver channel state informatio…
Optimal Throughput-Diversity-Delay Tradeoff in MIMO ARQ Block-Fading Channels
Allen Chuang, Albert Guillen i Fabregas, Lars K. Rasmussen +1
In this paper, we consider an automatic-repeat-request (ARQ) retransmission protocol signaling over a block-fading multiple-input, multiple-output (MIMO) channel. Unlike previous w…
Design of Rate-Compatible Serially Concatenated Convolutional Codes
Alexandre Graell i Amat, Fredrik Brannstrom, Lars K. Rasmussen
Recently a powerful class of rate-compatible serially concatenated convolutional codes (SCCCs) have been proposed based on minimizing analytical upper bounds on the error probabili…
Non-Data-Aided Parameter Estimation in an Additive White Gaussian Noise Channel
Fredrik Brannstrom, Lars K. Rasmussen
Non-data-aided (NDA) parameter estimation is considered for binary-phase-shift-keying transmission in an additive white Gaussian noise channel. Cramer-Rao lower bounds (CRLBs) for…
Nonlinear MMSE Multiuser Detection Based on Multivariate Gaussian Approximation
Peng Hui Tan, Lars K. Rasmussen
In this paper, a class of nonlinear MMSE multiuser detectors are derived based on a multivariate Gaussian approximation of the multiple access interference. This approach leads to…