Results 61 to 70 of about 45,199 (262)
Fading Types in Wireless Communications Systems [PDF]
Journal of Electrical and Electronics Engineering, 2008 In this paper fading models areconsidered. In particular we divide the models intothree classes by separating the received signal in threescale of spatial variation such as fast fading, slow fading(shadowing) and path loss.
R. Reiz, N. Draghiciu, S.Popa
doaj
An Accurate Sample Rejection Estimator of the Outage Probability With Equal Gain Combining
IEEE Open Journal of the Communications Society, 2020 We evaluate the outage probability (OP) for L-branch equal gain combining (EGC) receivers operating over fading channels, i.e., equivalently the cumulative distribution function (CDF) of the sum of the L channel envelopes.
Nadhir Ben Rached +3 more
doaj +1 more source
Multilevel Block Coded 8-PSK Modulations Using Unequal Error Protection Codes for the Rayleigh Fading Channel [PDF]
, 1995 This paper introduces new block coded 8-PSK modulations with unequal error protection (UEP) capabilities for Rayleigh fading channels. The design of efficient block coded modulations (BCM) over 8-PSK signal sets, for the specific purpose of UEP, over ...
Kamasi, Tadeo +2 more
core +1 more source
Perspective: Hollow Core Optical Fibres for Ultraviolet and Visible Wavelengths
Advanced Science, EarlyView.Hollow core optical fibres bypass material constraints that limit optical fibres at ultraviolet and visible wavelengths. However, their challenging fabrication has limited their development, and significant gains in performance remain possible. In this perspective we outline approaches to enable the next generation of fibres for shorter wavelengths ...
Robbie Mears +5 more
wiley +1 more source
Optimal Power Control in Decentralized Gaussian Multiple Access Channels
, 2018 We consider the decentralized power optimization problem for Gaussian fast-fading multiple access channel (MAC) so that the average sum-throughput is maximized.
Singh, Kamal
core +1 more source
MIMO indoor propagation : a geometry-based model including time-variant fading statistics [PDF]
, 2016 P
Joseph, Wout +2 more
core +2 more sources
Rayleigh Fading Suppression in One-Dimensional Optical Scatters [PDF]
IEEE Access, 2019 9 pages, 5 ...
Shengtao Lin +8 more
openaire +3 more sources
Advanced Science, EarlyView.In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li +8 more
wiley +1 more source
When Is the Achievable Rate Region Convex in Two-User Massive MIMO Systems?
, 2018 This letter investigates the achievable rate region in Massive multiple-input-multiple-output (MIMO) systems with two users, with focus on the i.i.d.~Rayleigh fading and line-of-sight (LoS) scenarios. If the rate region is convex, spatial multiplexing is
Björnson, Emil +2 more
core +1 more source
Green communication via Type-I ARQ: Finite block-length analysis [PDF]
, 2014 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 is cast as the minimization of the outage probability subject to an ...
Makki, Behrooz +2 more
core +2 more sources