Results 41 to 50 of about 44,063 (255)
Polar Coded HARQ Scheme with Chase Combining
, 2014 A hybrid automatic repeat request scheme with Chase combing (HARQ-CC) of polar codes is proposed. The existing analysis tools of the underlying rate-compatible punctured polar (RCPP) codes for additive white Gaussian noise (AWGN) channels are extended to
Chen, Kai +3 more
core +1 more source
A Novel Architecture for M-FSK /DS Spread Spectrum Communication System
Anbar Journal of Engineering SciencesThe proposed communication system combines direct sequence spread spectrum with multiple frequency shift keying and evaluates bit error rate performance under AWGN and Rayleigh fading channels.
ali husien
doaj +1 more source
Comparison of the pituitary gland transcriptome in pregnant and non-pregnant goats (Capra hircus)
Czech Journal of Animal Science, 2019 Pregnancy is strictly regulated by neuronal and hormonal factors with an essential role being played by the pituitary gland. We screened for differentially expressed genes (DEGs) in the pituitary that function in goat gestational development.
Qing Quan +10 more
doaj +1 more source
Sensitivity Gains by Mismatched Probabilistic Shaping for Optical Communication Systems [PDF]
, 2015 Probabilistic shaping of quadrature amplitude modulation (QAM) is used to enhance the sensitivity of an optical communication system. Sensitivity gains of 0.43 dB and 0.8 dB are demonstrated in back-to-back experiments by shaping of 16QAM and 64QAM ...
Alvarado, Alex +5 more
core +3 more sources
Jurnal Nasional Teknik Elektro, 2017 This study is the simulation of SPIHT image compression using diversity selection combining techniques. The image is compressed by using SPIHT compression techniques after wavelet decomposition.
Baharuddin Abbas
doaj +1 more source
Regenerative and Adaptive schemes Based on Network Coding for Wireless Relay Network
, 2012 Recent technological advances in wireless communications offer new opportunities and challenges for relay network.To enhance system performance, Demodulate-Network Coding (Dm-NC) scheme has been examined at relay node; it works directly to De-map the ...
Dai, Bin +2 more
core +1 more source
Feedback Capacity of OU-Colored AWGN Channels
2023 IEEE International Symposium on Information Theory (ISIT), 2023 2023 IEEE International Symposium on Information Theory (ISIT) 25-30 June 2023, Taipei ...
Su, Jun +2 more
openaire +1 more source
A Quantised Push‐Sum Distributed Adaptive Momentum Algorithm for Optimisation Over Directed Networks
CAAI Transactions on Intelligence Technology, EarlyView.ABSTRACT In this paper, we investigate a distributed constrained optimisation problem over directed networks. The agents in the networks conduct local computations and communications, endeavouring to collaboratively minimise the aggregation of all locally known convex cost functions subject to a global constraint set.
Qingguo Lü +6 more
wiley +1 more source
Analysis of cubic permutation polynomials for turbo codes
, 2012 Quadratic permutation polynomials (QPPs) have been widely studied and used as interleavers in turbo codes. However, less attention has been given to cubic permutation polynomials (CPPs).
D. Tărniceriu +14 more
core +1 more source
Modulation and coding for quantized channels [PDF]
, 2007 We investigate reliable communication over quantized channels from an information theoretical point of view. People seldom consider the effect of quantization in conventional coded modulation systems since Analog-to-Digital (AD) converters used in these ...
Cronie, Harm S., Shao, Xiaoying
core +1 more source