Results 11 to 20 of about 51,494 (261)

Caching at the Edge: Outage Probability [PDF]

open access: yes2021 IEEE Wireless Communications and Networking Conference (WCNC), 2021
Caching at the edge of wireless networks is a keytechnology to reduce traffic in the backhaul link. However, aconcentrated amount of requests during peak-periods may causethe outage of the system, meaning that the network is not ableto serve the whole set of demands.
Recayte, Estefania, Munari, Andrea
openaire   +3 more sources

On the Performance of Full-Duplex Cooperative NOMA With Non-Linear EH

open access: yesIEEE Access, 2021
This paper studies a non-linear energy harvesting (EH) enabled full-duplex (FD) cooperative non-orthogonal multiple access (C-NOMA) system, where the near user acts as an FD relay to assist the transmission from BS to far user with power-splitting (PS ...
Long Ma, Enyu Li, Qianqian Yang
doaj   +1 more source

Outage Probability Under Channel Distribution Uncertainty [PDF]

open access: yesIEEE Transactions on Information Theory, 2011
Outage probability and capacity of a class of block fading MIMO channels are considered under partial channel distribution information. Specifically, the channel or its distribution is not known but the latter is known to belong to a class of distributions where each member is within a certain distance (uncertainty) from a nominal distribution ...
Ioannou, I.   +5 more
openaire   +3 more sources

WiMAX on FSO: Outage Probability Analysis [PDF]

open access: yesIEEE Transactions on Communications, 2012
The transmission of multiple wireless signals over optical links has attained a great research interest nowadays. In case where optical fibers are difficult to be deployed, or installation cost is prohibited, optical wireless systems provide an efficient alternative means.
Vaiopoulos, N.   +2 more
openaire   +2 more sources

Outage probability for soliton transmission [PDF]

open access: yesEurophysics Letters (EPL), 2004
We study the interplay between amplifier noise and birefringent disorder in the case of strongly nonlinear (soliton) type of transmission in optical fibers. Assuming both noise and disorder to be weak, we evaluate the probability distribution function (PDF) of the Bit-Error-Rate (BER) for the values of BER that are much larger than the typical (average)
V Chernyak   +3 more
openaire   +1 more source

Elevator dynamic monitoring and early warning system based on machine learning algorithm

open access: yesIET Networks, EarlyView., 2022
In order to monitor and warn the elevator dynamics, in this work, the machine learning algorithm is introduced, and the particle swarm algorithm is used to perfect the model. The model is optimised, and the experimental comparison shows that the optimisation of the model parameters can further improve the accuracy of the elevator load prediction. Then,
Shuai Zhang, Qiangguo Yin, Jinlong Wang
wiley   +1 more source

NOMA-2000 Versus PD-NOMA: An Outage Probability Comparison [PDF]

open access: yesIEEE Communications Letters, 2021
Non-orthogonal multiple access (NOMA) is an emerging technique promising to accommodate the increasing data rate requirements of next generation networks. In power-domain (PD) NOMA, this challenge is addressed by allocating two or more users on each orthogonal resource block while assigning significantly different power levels to all users.
Ismail Cosandal   +3 more
openaire   +3 more sources

Precoding for coded communication on block fading channels and cooperative communications [PDF]

open access: yes, 2011
We study precoding for the outage probability minimization of block fading (BF) channels and BF relay channels. Recently, an upper bound on the outage probability with precoding was established for BF channels, but only for high instantaneous SNR.
Boutros, Joseph J   +2 more
core   +2 more sources

Performance analysis of physical layer security based on channel correlation

open access: yesTongxin xuebao, 2021
In view of the correlation of the main and eavesdropper’s channels in physical layer security, the impact of channel correlation on the secrecy performance was studied, the exact form ulations of ergodic secrecy capacity and secrecy outage probability ...
Xuanli WU   +3 more
doaj   +2 more sources

Reverse Link Outage Probabilities of Multicarrier CDMA Systems with Beamforming in the Presence of Carrier Frequency Offset

open access: yesEURASIP Journal on Wireless Communications and Networking, 2007
The outage probability of reverse link multicarrier (MC) code-division multiple access (CDMA) systems with beamforming in the presence of carrier frequency offset (CFO) is studied. A conventional uniform linear array (ULA) beamformer is utilized.
Xiaoyu Hu, Yu-Dong Yao
doaj   +1 more source

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