Results 81 to 90 of about 85,381 (188)

End-to-End Error-Correcting Codes on Networks with Worst-Case Symbol Errors

open access: yes, 2015
The problem of coding for networks experiencing worst-case symbol errors is considered. We argue that this is a reasonable model for highly dynamic wireless network transmissions.
Jaggi, Sidharth, Wang, Qiwen
core  

Performance Evaluation of Closed-Loop Spatial Multiplexing Codebook Based on Indoor MIMO Channel Measurement

open access: yesInternational Journal of Antennas and Propagation, 2012
Closed-loop MIMO technique standardized in LTE can support different layer transmissions through precoding operation to match the channel multiplexing capability.
Junjun Gao   +4 more
doaj   +1 more source

Hierarchical ML Codebook Design for Extreme MIMO Beam Management

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
Beam management is a strategy to unify beamforming and channel state information (CSI) acquisition with large antenna arrays in 5G. Codebooks serve multiple uses in beam management including beamforming reference signals, CSI reporting, and analog beam ...
Ryan M. Dreifuerst, Robert W. Heath
doaj   +1 more source

Nash Equilibrium and information transmission coding and decoding rules [PDF]

open access: yes
The design of equilibrium protocols in sender-receiver games where communication is noisy occupies an important place in the Economic literature. This paper shows that the common way of constructing a noisy channel communication protocol in Information ...
Amparo Urbano Salvador   +2 more
core  

The benefit of a 1-bit jump-start, and the necessity of stochastic encoding, in jamming channels

open access: yes, 2016
We consider the problem of communicating a message $m$ in the presence of a malicious jamming adversary (Calvin), who can erase an arbitrary set of up to $pn$ bits, out of $n$ transmitted bits $(x_1,\ldots,x_n)$.
Dey, Bikash Kumar   +3 more
core  

Hybrid precoding method for mmWave MIMO systems based on limited feedback

open access: yesDianxin kexue, 2018
A hybrid precoding algorithm for millimeter wave (mmWave) MIMO systems without knowledge of channel state information at the transmitter was proposed based on the limited feedback.Specifically, the joint optimization problem of analog precoding and ...
Ruonan YOU   +3 more
doaj  

Design of SCMA codebook based on chaotic signal and system performance analysis

open access: yesTongxin xuebao, 2019
Sparse code multiple access (SCMA) technology is one of the multiple access technology schemes for the new generation of 5G.In order to solve the transmission requirement of massive users,the logistic chaos sequence was proposed instead of the random ...
Geng ZHAO, Yanyan MA, Yingjie MA
doaj  

Implementation scheme of RIS-NOMA communication based on environment-aware codebook

open access: yesTongxin xuebao
To address the joint optimization of dynamic channel state information acquisition and resource allocation in reconfigurable intelligent surface (RIS)-assisted non-orthogonal multiple access (NOMA) communication systems, an implementation scheme of RIS ...
Lei Fang, Jia Jichuan, Xue Xiaokai
doaj  

Longitudinal mental health data collected via the Corona Health smartphone app during COVID-19. [PDF]

open access: yesSci Data
Winter M   +10 more
europepmc   +1 more source

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