Results 21 to 30 of about 186,820 (284)

Uplink Channel Impulse Response Based Secondary Carrier Prediction [PDF]

open access: yes2021 National Conference on Communications (NCC), 2021
A typical handover problem requires sequence of complex signaling between a UE, the serving, and target base station. In many handover problems the down link based measurements are transferred from a user equipment to a serving base station and the decision on handover is made on these measurements.
Prayag Gowgi, Vijaya Yajnanarayana
openaire   +2 more sources

CNN-based super-resolution channel impulse response indoor fingerprint location algorithm

open access: yes上海师范大学学报. 自然科学版, 2021
Aiming at the problem that the multipath effect in the indoor environment affected the positioning accuracy, based on a deep convolutional neural network(CNN), pseudo spectral image-CNN(PI-CNN)algorithm was proposed in this paper.
LUO Kaiwen, YU Hui
doaj   +1 more source

Frequency estimation in multipath rayleigh-sparse-fading channels [PDF]

open access: yes, 2004
Maximum-likelihood (ML) data-aided frequency estimation in multipath Rayleigh-fading channels with sparse impulse responses is investigated. We solve this problem under the assumption that the autocorrelation matrix of the pilot signal can be ...
Baronkin, V M, Tozer, T C, Zakharov, Y V
core   +1 more source

Iterative Estimation in Turbo Equalization Process [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2014
This paper presents the iterative estimation in turbo equalization process. Turbo equalization is the process of reception in which equalization and decoding are done together, not as separate processes.
MORGOS Lucian   +2 more
doaj  

Regularization Factor Selection Method for l1-Regularized RLS and Its Modification against Uncertainty in the Regularization Factor

open access: yesApplied Sciences, 2019
This paper presents a new l1-RLS method to estimate a sparse impulse response estimation. A new regularization factor calculation method is proposed for l1-RLS that requires no information of the true channel response in advance.
Junseok Lim, Seokjin Lee
doaj   +1 more source

Design of transceivers based on sparse Bayesian learning for power line carrier communications

open access: yesDianxin kexue, 2017
Aiming at the problem of the influence of multipath channel and impulse noise on the performance of power line carrier communication system,a transceiver scheme for power line communication system was proposed which could effectively combat the influence
Xinrong LV, Youming LI, Mingchen YU
doaj   +2 more sources

Maximum Likelihood Multipath Channel Parameter Estimation in CDMA Systems [PDF]

open access: yes, 1998
The problem addressed in this paper is the estimation of the channel parameters in a Code Division Multiple Access(CDMA) communication system, in the presence of multipath effects.
Aazhang, Behnaam   +3 more
core   +3 more sources

Channel Protection: Random Coding Meets Sparse Channels

open access: yes, 2009
Multipath interference is an ubiquitous phenomenon in modern communication systems. The conventional way to compensate for this effect is to equalize the channel by estimating its impulse response by transmitting a set of training symbols.
Asif, M. Salman   +2 more
core   +4 more sources

Estimation of channel impulse response and FPGA simulation

open access: yes上海师范大学学报. 自然科学版, 2015
Wideband code division multiple access (WCDMA) is a 3G wireless communication network.The common pilot channel in downlink of WCDMA provides an effective method to estimate the channel impulse response.In this paper,universal software radio peripheral ...
YU Longjie, YIN Xuefeng
doaj   +1 more source

A Parametric Replay-Based Framework for Underwater Acoustic Communication Channel Simulation [PDF]

open access: yes, 2014
International audienceThis paper lays the foundation of an underwater acoustic channel simulation methodology that is halfway between parametric modeling and stochastic replay of at-sea measurements of channel impulse responses.
Laot, Christophe   +2 more
core   +3 more sources

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