Results 31 to 40 of about 2,499,076 (175)

Modeling and analysis of ergodic capacity in network MIMO systems [PDF]

open access: yes2014 IEEE Globecom Workshops (GC Wkshps), 2014
This paper studies the downlink ergodic capacity of a network multiple-input multiple-output (MIMO) system. The system model includes base-stations (BSs) randomly distributed with a fixed density, each equipped with M antennas, scheduling K single-antenna users, and forming cooperating clusters via perfect backhaul links.
Kianoush Hosseini   +2 more
openaire   +1 more source

Ergodic capacity analysis of spatially modulated systems

open access: yes, 2013
Spatial Modulation (SM) is a newly introduced wireless transmission scheme, and Space Shift Keying (SSK) is its simplified version. Their capacity performance has not been well examined to date.
Hou, Yonghong   +4 more
core   +1 more source

Cognitive Radios with Ergodic Capacity Guarantees for Primary Users [PDF]

open access: yesProceedings of the 7th International Conference on Cognitive Radio Oriented Wireless Networks, 2012
Cognitive radios implement adaptive resource allocation schemes that exploit knowledge of the channel state information to optimize the performance of the secondary users while limiting the interference to the primary users. The algorithms in this paper are designed to maximize the weighted sum-rate of secondary users which transmit orthogonally and ...
Antonio G. Marqués   +2 more
openaire   +2 more sources

Performance Analysis of Beamforming in MU-MIMO Systems for Rayleigh Fading Channels

open access: yesIEEE Access, 2017
This paper characterizes the performance metrics of MU-MIMO systems under Rayleigh fading channels in the presence of both cochannel interference and additive noise with unknown channel state information and known correlation matrices. In the first task,
Ahmad Kamal Hassan   +3 more
doaj   +1 more source

Ergodicity and mixing of invariant capacities and applications

open access: yesThe Annals of Applied Probability
We introduce the notion of common conditional expectation to investigate Birkhoff's ergodic theorem and subadditive ergodic theorem for invariant upper probabilities. If in addition, the upper probability is ergodic, we construct an invariant probability to characterize the limit of the ergodic mean.
Feng, Chunrong   +3 more
openaire   +2 more sources

Portfolio Growth Rate and Ergodic Capacity of Fading Channels [PDF]

open access: yes2021 IEEE International Symposium on Information Theory (ISIT), 2021
A relationship between the growth-rate of logoptimal portfolios and capacity of fading single-input multiple output (SIMO) channels are established. Using this relation, stock vector stochastic processes that model the investment environments are stochastically ordered using different criteria. The presence of side information (SI) is considered, and a
openaire   +2 more sources

Performance Analysis for User-Centric Dense Networks With mmWave

open access: yesIEEE Access, 2019
This paper focuses on the coverage probability and ergodic capacity for millimeter wave (mmWave) user-centric dense networks, where multiple access points (APs) consist of a virtual cell for each user equipment and transmit data with mmWave antennas ...
Jianfeng Shi   +3 more
doaj   +1 more source

Downlink ergodic sum capacity maximisation for massive distributed antenna systems with SWIPT protocol

open access: yesIET Communications, 2021
The paper investigates simultaneous wireless information and power transfer (SWIPT) in massive distributed antenna systems, where the remote radio heads (RRH) equipped with a large number of antennas are arbitrarily distributed over the coverage area and
Wenfeng Sun   +4 more
doaj   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

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