1,116 research outputs found
sj-docx-1-onc-10.1177_11795549221116834 – Supplemental material for Concordance of Genomic Profiles in Matched Tissue and Plasma Samples From Chinese Patients With Lung Cancer
No full textSupplemental material, sj-docx-1-onc-10.1177_11795549221116834 for Concordance of Genomic Profiles in Matched Tissue and Plasma Samples From Chinese Patients With Lung Cancer by Yueming He, Weifeng Guo, Meng Xu, Junling Huang, Xiange Zhang, Huanzhang Su, Dongxia Hong and Qun Liu in Clinical Medicine Insights: Oncology</p
sj-xlsx-2-onc-10.1177_11795549221116834 – Supplemental material for Concordance of Genomic Profiles in Matched Tissue and Plasma Samples From Chinese Patients With Lung Cancer
No full textSupplemental material, sj-xlsx-2-onc-10.1177_11795549221116834 for Concordance of Genomic Profiles in Matched Tissue and Plasma Samples From Chinese Patients With Lung Cancer by Yueming He, Weifeng Guo, Meng Xu, Junling Huang, Xiange Zhang, Huanzhang Su, Dongxia Hong and Qun Liu in Clinical Medicine Insights: Oncology</p
IFI and ISI premitigation for block-code-modulated noncoherent UWB impulse radio: A code optimization approach
No full textCodeword matching and signal aggregation (CMSA) is a recently proposed low-complexity noncoherent receiver for block code modulated UWB Impulse Radio (UWB-IR) systems. As the frame/symbol duration is shortened to boost data rate, inter-frame interference (IFI) or inter-symbol interference (ISI) occurs and degrades detection performance of CMSA. In this paper, an effective IFI/ISI pre-mitigation scheme is proposed for CMSA by means of a code optimization approach. By employing a tailored interference model that highlights the codeword properties, the system performance in the presence of moderate IFI/ISI is evaluated and an average collected channel gain (CCG) is introduced as the metric for code optimization. With the primary focus on binary modulation, two IFI/ISI-robust code properties are generalized as Shifted-Orthogonality and Shifted-Repetition. Based on these properties, the optimal code is constructed. It is observed that, when the optimal code occurs, the leaked signal energy or the interference can be partially used to enhance the detection performance of CMSA in the presence of IFI/ISI. Unlike most of the existing IFI/ISI mitigation schemes for noncoherent UWB-IR that focus mainly on signal processing after the nonlinear detector, the optimized code is exploited to aggregate leaked signal energy along with the linear pre-detection operation already involved in CMSA receiver. Both analysis and simulation show that a distinct performance improvement is achieved
Faster-than-Nyquist non-orthogonal frequency-division multiplexing for visible light communications
No full textIn this paper, we propose a faster-than-Nyquist (FTN) non-orthogonal frequency-division multiplexing (NOFDM) scheme for visible light communications (VLC) where the multiplexing/demultiplexing employs the inverse fractional cosine transform (IFrCT)/FrCT. Different to the common fractional Fourier transform-based NOFDM (FrFT-NOFDM) signal, FrCTbased NOFDM (FrCT-NOFDM) signal is real-valued, which can be directly applied to the VLC systems without the expensive up-conversion and thus it is more suitable for the cost-sensitive VLC systems. Under the same transmission rate, FrCT-NOFDM signal occupies smaller bandwidth compared to OFDM signal. When the bandwidth compression factor &#x03B1; is set to 0.8, 20&#x0025; bandwidth saving can be obtained. Therefore, FrCT-NOFDM has higher spectral efficiency and suffers less high-frequency distortion compared to OFDM, which benefits the bandwidthlimited VLC systems. As the simulation results show, bit error rate performance of FrCT-NOFDM with &#x03B1; of 0.9 or 0.8 is better than that of OFDM. Meanwhile, FrCT-NOFDM has a superior security performance. In conclusion, FrCT-NOFDM shows the potential for application in the future VLC systems.</p
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