Results 201 to 210 of about 82,997 (235)

Emotional and sentiment analyses of MSM geo-social networking app users in Shenzhen: implications for mental health interventions. [PDF]

BMC Public Health
Hu L, Li J, Liu H, Fu T, Hou F.
europepmc   +1 more source

Density functional theory insights into the solvent effect on the binding energies of Cd²⁺ in functionalized MOFs. [PDF]

RSC Adv
Hoa VT.
europepmc   +1 more source

Cooperative molecular interaction networks govern PARP1 inhibitor selectivity and binding affinity

Feito A, DeMoya-Valenzuela N, Privat C, Tejedor AR, Paniagua-Herranz L, Garaizar A, Ocana A, Espinosa JR.   +7 more
europepmc   +1 more source

Channel Estimation With Systematic Polar Codes [PDF]

IEEE Transactions on Vehicular Technology, 2018
Study of polar codes in fading channels is of great importance when applying polar codes in wireless communications. Channel estimation is a fundamental step for communication to be possible in fading channels. For both systematic and non-systematic polar codes, construction of them is based on an information set and the known frozen bits.
Liping Li, Yanjun Hu
exaly   +3 more sources

Parallel concatenated systematic polar codes

Electronics Letters, 2016
A parallel concatenated coding structure, which can improve the performance of polar codes in finite‐length regime, is proposed. In the proposed structure, the encoder is built using two systematic polar codes (SPCs), and the decoder adopts iterative belief propagation decoding algorithm.
Aijun Liu, Yingxian Zhang, Qingshuang Zhang   +2 more
exaly   +2 more sources

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Systematic Polar Coded Modulation for Informed Receivers

IEEE Transactions on Communications, 2021
The problem of coding for informed receivers (IR) is considered, where a transmitter multicasts a bunch of messages to its associated receivers, each of which already has a subset of messages as side information. Which receiver has what side information is unknown to the transmitter. A family of polar codes for IR was proposed for binary-input channels
Shin-Lin Shieh, Yu-Chih Huang, Po-Ning Chen, Yu-Ming Li   +3 more
openaire   +1 more source

On the encoding complexity of systematic polar codes

2015 28th IEEE International System-on-Chip Conference (SOCC), 2015
Systematic polar codes are proposed by Arikan and are shown to have better BER performance than non-systematic polar codes. From a recursive decomposition of the generator matrix of polar codes, Arikan showed that the encoding complexity of systematic polar codes is also O(N log N) where N is the code block length.
Liping Li, Wenyi Zhang
exaly   +2 more sources

Staircase construction with non-systematic polar codes

Optical Fiber Communication Conference (OFC) 2020, 2020
We propose staircase codes based on non-systematic polar codes, describing a general framework for encoding and decoding, and presenting simulation results showing the effectiveness of the proposed approach even with short component codes.
Condo C, Bioglio V, Land I
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Construction of Systematic Polar Codes: BER Optimization Perspective

2020 IEEE Information Theory Workshop (ITW), 2021
Code construction is a critical issue for polar coding. The expected construction method is of an accurate estimate of the reliability of bit-channels, but the current methods usually require high computational complexity. In this paper, we concern the input-output weight distribution of each bit-channel and derive its recursive calculation algorithm ...
Bolin Wu, Kai Niu 0001, Jincheng Dai
openaire   +1 more source