96,516 research outputs found
Cloning and sequencing of the cDNA-encoding the pituitary gonadotropin-II beta-subunit of yellowfin porgy (Acanthopagrus-latus).
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radar-science/Yang-2024-Tropo: Version 1.0 - Published version
No full text<p>This version includes the Matlab code and used Jupyter notebooks used in the published version of <a href="https://doi.org/10.1109/TGRS.2024.3356749">Yang et al. (2024)</a>.</p>
Amalgamated Generalized Low Density Parity Check and Luby Transform Codes for the Wireless Internet
No full textLuby Transform codes (LT) were originally designed for the Binary Erasure Channel (BEC) encountered owing to randomly dropped packets in the statistical multiplexing aided Internet, where transmitted packets are not affected by the fading or noise of the environment. For the sake of transmitting data over the BEC routinely encountered in statistical multiplexing aided wireless Internet-style scenarios, LT codes have to be combined with classic channel codes. In this paper we introduce a novel amalgamated LT coding and Generalized Low Density Parity Check (G-LDPC) coding scheme. Upon exploiting the packet erasure information provided by the GLDPC decoder for the LT decoder, the proposed scheme achieves a low Bit Error Ratio (BER) for Packet Error Ratio (PER) Eb/N0 values in excess of 3.2dB when transmitting data over the AWGN-BEC channel having a packet erasure probability of Pe=0.1. When communicating over the Rayleigh-BEC channel at Pe=0.1, an Eb/N0 value of 5.3 dB was required. In comparison to the serially concatenated LT-GLDPC scheme using no information exchange between the G-LDPC decoder and the LT decoder, the amalgamated LT-GLDPC arrangement achieved an Eb/N0 gain of up to 1.6-2.5 dB
Luby Transform Coding Aided Iterative Detection for Downlink SDMA Systems
No full textA Luby Transform (LT) coded downlink Spatial Division Multiple Access (SDMA) system using iterative detection is proposed, which invokes a low-complexity near-Maximum-Likelihood (ML) Sphere Decoder (SD). The Ethernet-based Internet section of the transmission chain inflicts random packet erasures, which is modelled by the Binary Erasure Channel (BEC), which the wireless downlink imposes both fading and noise. A novel log-Likelihood Ratio based packet reliability metric is used for identifying the channel-decoded packets, which are likely to be error-infested. Packets having residual errors must not be passed on to the KT decoder for the sake of avoiding LT-decoding –induced error propagation. The proposed scheme is capable of maintaining an infinitesimally low packet error ratio in the downlink of the wireless Internet for Eb/n0 values in excess of about 3dB
Indonemoura tibetensis Zhu, Yang & Yang 2002
No full text<i>Indonemoura tibetensis</i> Zhu, Yang & Yang, 2002 <p>(Figs. 37–41)</p> <p> <i>Indonemoura tibetensis</i> Zhu, Yang & Yang, 2002. China Entomol. Sci. 5: 317. Type locality: Tibet, Chaya.</p> <p> <b>Diagnosis.</b> Epiproct long, broad at base and tapering toward apex.Ventral sclerite with small projection, with a row of very small spines. Median lobe broad at base, tapering to a</p>Published as part of <i>Li, Weihai & Yang, Ding, 2006, The genus Indonemoura Baumann, 1975 (Plecoptera: Nemouridae) from China, pp. 47-61 in Zootaxa 1283</i> on page 55, DOI: <a href="http://zenodo.org/record/173446">10.5281/zenodo.173446</a>
A Systematic LT Coded Arrangement for Transmission Over Correlated Shadow Fading Channels in 802.11 Ad-hoc Wireless Networks
No full textAbstract— Systematic Luby Transform (SLT) codes constitute rateless codes, which are capable of adaptively adjusting their code rate depending on the channel quality without any explicit channel state information (CSI) at the transmitters. In this paper, we investigate the performance of an SLT coded wireless system communicating over a correlated fading channel within an 802.11b network. The simulation results show that the SLT coded system can achieve a 3 dB gain in term of fading deviation when fading correlation changes from 1 Hz to 5 Hz. Moreover, it is found that a system employing an SLT code can provide similar performance to other rateless codes, namely the Luby Transform (LT) code and the Random Linear Fountain Code (RLFC). However, this level of performance is achieved with a reduced number of decoding operations. A 20% reduction is achieved when the standard deviation of the fading amplitude is 10 dB and the communication distance is 7 m. Greater reductions are observed under more benign propagation conditions. Index Terms - Systematic Luby Transform (SLT) code, rate
Deming-Yang/Enamel_Sr: Yang et al. 2024 SI Appendix data code and model script
No full text<p>This version is for peer-review only, and may be subject to revisions.</p>
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