Results 71 to 80 of about 3,472,430 (240)
Upper and Lower Bounds for the Ergodic Capacity of MIMO Jacobi Fading Channels [PDF]
Optics Express, 2017 In multi-(core/mode) optical fiber communication, the transmission channel can be modeled as a complex sub-matrix of the Haar-distributed unitary matrix (complex Jacobi unitary ensemble). In this letter, we present new analytical expressions of the upper
A. Nafkha, Rémi Bonnefoi
semanticscholar +1 more source
Ergodic capacity evaluation of wireless THz fiber extenders
CoRR, 2019 This paper focuses on delivering quantified results for the evaluation of the aggregated impact of stochastic antenna misalignment, multipath fading and hardware imperfections on the terahertz (THz) wireless fiber extenders. In this line, we present the appropriate signal model that accommodates the different technical and environmental parameters.
Evangelos N. Papasotiriou +2 more
openaire +2 more sources
Ergodic Fading Interference Channels: Sum-Capacity and Separability [PDF]
IEEE Transactions on Information Theory, 2011 The sum-capacity for specific sub-classes of ergodic fading Gaussian two-user interference channels (IFCs) is developed under the assumption of perfect channel state information at all transmitters and receivers. For the sub-classes of uniformly strong (every fading state is strong) and ergodic very strong two-sided IFCs (a mix of strong and weak ...
Lalitha Sankar +3 more
openaire +2 more sources
Econometrics at the Extreme: From Quantile Regression to QFAVAR1
Journal of Economic Surveys, EarlyView.ABSTRACT This paper surveys quantile modelling from its theoretical origins to current advances. We organize the literature and present core econometric formulations and estimation methods for: (i) cross‐sectional quantile regression; (ii) quantile time series models and their time series properties; (iii) quantile vector autoregressions for ...
Stéphane Goutte +4 more
wiley +1 more source
Sensors, 2013 Mobile wireless multimedia sensor networks (WMSNs), which consist of mobile sink or sensor nodes and use rich sensing information, require much faster and more reliable wireless links than static wireless sensor networks (WSNs).
Cheolwoo You +2 more
doaj +1 more source
Sensors, 2022 Addressing the challenges of internet-based 5G technology, namely increasing density through micro-cell systems, frequency spectrum, and reducing resource costs, is needed to meet the use of IoT-based 6G technology with the goal of high-speed, high ...
Hsing-Chung Chen +3 more
doaj +1 more source
Ergodic Classical-Quantum Channels: Structure and Coding Theorems
, 2008 We consider ergodic causal classical-quantum channels (cq-channels) which additionally have a decaying input memory. In the first part we develop some structural properties of ergodic cq-channels and provide equivalent conditions for ergodicity.
Bjelakovic, Igor, Boche, Holger
core +2 more sources
Journal of Communications and Networks, 2019 In this paper, we derive a closed-form ergodic capacity expression for a generic cooperative diversity network (GCDN) in Rayleigh fading channels. We first derive a closed-form probability density function (pdf) of the instantaneous diversity-combined ...
Min Lee, S. Oh
semanticscholar +1 more source
Multipacket Hybrid ARQ: Closing Gap to the Ergodic Capacity [PDF]
IEEE Transactions on Communications, 2015 In this work, we consider incremental redundancy (IR) hybrid automatic repeat request (HARQ), where the transmission rounds are carried over independent block-fading channels. We analyze the multipacket HARQ, where the transmitter allows two different packets to share the same channel block; this stands in contrast with the conventional HARQ, where ...
Mohammed Jabi +3 more
openaire +1 more source
On Exponential‐Family INGARCH Models
Journal of Time Series Analysis, EarlyView.ABSTRACT A range of integer‐valued generalised autoregressive conditional heteroscedastic (INGARCH) models have been proposed in the literature, including those based on conditional Poisson, negative binomial and Conway‐Maxwell‐Poisson distributions. This note considers a larger class of exponential‐family INGARCH models, showing that maximum empirical
Alan Huang +3 more
wiley +1 more source