2020 National Conference on Communications (NCC)最新文献

Application of kohonen-self organizing map to cluster drug induced Ca2+ response in hippocampal neurons at different drug dose 科霍宁自组织图谱在不同剂量海马神经元药物诱导的Ca2+反应中的应用

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056031

A. Saxena, Vaibhav Dhyani, S. Jana, L. Giri

引用次数: 2

IITG- Indigo Submissions for NIST 2018 Speaker Recognition Evaluation and Post-Challenge Improvements IITG- Indigo提交给NIST 2018年说话人识别评估和挑战后改进

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056055

K. Singh, Nagendra Kumar, R. Sinha, Shreyas Ramoji, Sriram Ganapathy

{"title":"IITG- Indigo Submissions for NIST 2018 Speaker Recognition Evaluation and Post-Challenge Improvements","authors":"K. Singh, Nagendra Kumar, R. Sinha, Shreyas Ramoji, Sriram Ganapathy","doi":"10.1109/NCC48643.2020.9056055","DOIUrl":"https://doi.org/10.1109/NCC48643.2020.9056055","url":null,"abstract":"This paper describes the submissions of team Indigo at Indian Institute of Technology Guwahati (IITG) to the NIST 2018 Speaker Recognition Evaluation (SRE18) challenge. These speaker verification (SV) systems are developed for the fixed training condition task in SRE18. The evaluation data in SRE18 is derived from two corpora: (i) Call My Net 2 (CMN2), and (ii) Video Annotation for Speech Technology (VAST). The VAST set is obtained by extracting audio from video having high musical/noisy background. Thus, it helps in assessing the robustness of the SV systems. A number of sub-systems are developed which differ in front-end modeling paradigms, backend classifiers, and suppression of repeating pattern in the data. The fusion of sub-systems is submitted as the primary system which achieved actual detection cost function (actDCF) and equal error rate (EER) of 0.77 and 13.79 %, respectively, on the SRE18 evaluation data. Post-challenge efforts include the domain adaptation of the scores and the voice activity detection using deep neural network. With these enhancements, for the VAST trials, the best single sub-system achieves the relative reductions of 38.4% and 11.6% in actDCF and EER, respectively.","PeriodicalId":183772,"journal":{"name":"2020 National Conference on Communications (NCC)","volume":"150 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125889871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Visible Light Communication Using Soft Cancellation Decoder for Polar Codes 用软对消译码器实现极地码可见光通信

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056020

N. Jain, Adrish Banerjee

引用次数: 2

Non-uniform Amplitude Codebooks for MU-MIMO in Millimeter Wave Systems 毫米波系统中MU-MIMO的非均匀振幅码本

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056069

Silpa S. Nair, S. Bhashyam

{"title":"Non-uniform Amplitude Codebooks for MU-MIMO in Millimeter Wave Systems","authors":"Silpa S. Nair, S. Bhashyam","doi":"10.1109/NCC48643.2020.9056069","DOIUrl":"https://doi.org/10.1109/NCC48643.2020.9056069","url":null,"abstract":"Beamforming using Discrete Fourier Transform (DFT) based codebook is widely studied for millimeter wave (mmWave) communication systems. This design requires only phase-control for each antenna element and is therefore motivated by the possibility of lower complexity hardware. While this DFT-based design works well for single-user transmission, significant inter-beam interference is generated in multi-user multiple-input multiple-output (MU-MIMO) transmission. Recently, beamforming based on amplitude tapering has been demonstrated even for mmWave systems. The non-uniform amplitude in this design allows the possibility of significantly reducing inter-beam interference at the cost of slightly reducing the main lobe gain. Since the amplitude tapering is fixed and designed offline, the additional implementation complexity is not very high. In this paper, we show that Dolph-Chebyshev and Taylor codebook designs can provide significant improvement in performance over DFT-based codebooks in full-dimension MU-MIMO settings. For the MU-MIMO, we also propose a per-user power allocation algorithm for maximizing the sum rate under total power and rate constraints. The results show that the proposed algorithm gives high sum rates compared to equal power allocation among users. The simulations are carried out under the 3GPP full-dimension MIMO channel model.","PeriodicalId":183772,"journal":{"name":"2020 National Conference on Communications (NCC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115331085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Spectral Analysis of a Nonlinear WOLA-OFDM System with DPD 带DPD的非线性WOLA-OFDM系统的频谱分析

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056066

Mohd Hamza Naim Shaikh, V. Bohara, A. Srivastava

引用次数: 3

Design and Development of 6 dB Microstrip Directional Coupler at C-Band Using Defective Ground for Tracking Application 基于缺陷地的c波段6db微带定向耦合器的设计与开发

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056081

N. Sood, Umesh Bahuguna, P. Sen

引用次数: 0

Outage Analysis of Adaptive Combining Scheme for Hybrid FSO/RF Communication FSO/RF混合通信自适应组合方案的中断分析

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056009

Mokkapati Siddharth, Suyash Shah, R. Swaminathan

引用次数: 7

Generalized Fractional Matched Filtering and its Applications 广义分数匹配滤波及其应用

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9055991

Peeyush Sahay, Ameya Anjarlekar, S. Jain, P. Radhakrishna, V. Gadre

引用次数: 4

Design of a Modified Inscribed Square Fractal Antenna for Wideband Wireless Applications 一种用于宽带无线应用的改进型刻方形分形天线设计

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056054

T. K. Das, Rupa Samyuktha Kotla, S. Behera

引用次数: 0

Blind Channel Coding Identification of Convolutional encoder and Reed-Solomon encoder using Neural Networks 基于神经网络的卷积编码器和Reed-Solomon编码器盲信道编码识别

2020 National Conference on Communications (NCC) Pub Date : 2020-02-01 DOI: 10.1109/NCC48643.2020.9056082

Naveenta Gautam, Brejesh Lall

{"title":"Blind Channel Coding Identification of Convolutional encoder and Reed-Solomon encoder using Neural Networks","authors":"Naveenta Gautam, Brejesh Lall","doi":"10.1109/NCC48643.2020.9056082","DOIUrl":"https://doi.org/10.1109/NCC48643.2020.9056082","url":null,"abstract":"Forward error correcting (FEC) codes are used to improve the reliability of digital communication systems. They introduce redundancy in the signal which helps the receiver to correct errors without requesting for re transmission. FEC codes can be classified into two categories: Convolutional codes and linear block codes (LBCs). Reed-Solomon (RS) codes lie in the category of LBCs. For non-cooperative communication applications such as adaptive modulation and coding (AMC), military applications and cognitive radio, the channel encoder has to be identified blindly for decoding the received signal. In this study, we propose a scheme for blind identification of convolutional and RS codes. We have used the pattern recognition properties of a neural network (NN) to identify the encoder from a candidate set. NNs have not been used for this purpose, to the best of our knowledge. Performance of the proposed classifier has been evaluated for both the noiseless and the noisy case. To show the application of the proposed approach we present the performance results for the two most common use cases namely the terrestrial wireless and the satellite communication channels. Experimental results have shown that the proposed classifier can identify the encoder with high accuracy in low signal-to-noise ratio.","PeriodicalId":183772,"journal":{"name":"2020 National Conference on Communications (NCC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114485328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4