2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)最新文献_第6页

Processed 5G Signals Mathematical Models for Positioning Considering a Non-Constant Propagation Channel 考虑非恒定传播信道的处理5G信号定位数学模型

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891168

A. Tobie, A. G. Pena, P. Thevenon, Marion Aubault

引用次数: 1

Improved Spinal Codes: A Segmented CRC-Aided Scheme 改进脊髓编码:一种分段crc辅助方案

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891472

Kai Zhang, Dongqing Li, Shaohua Wu, Ye Wang, J. Jiao, Qinyu Zhang

{"title":"Improved Spinal Codes: A Segmented CRC-Aided Scheme","authors":"Kai Zhang, Dongqing Li, Shaohua Wu, Ye Wang, J. Jiao, Qinyu Zhang","doi":"10.1109/VTCFall.2019.8891472","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8891472","url":null,"abstract":"As a new type of rateless codes, Spinal codes can be proved in theory that it can achieve capacity over both the additive white Gaussian noise (AWGN) channel and the binary symmetric channel (BSC) with short message length. Due to the good adaptability under different channel conditions, Spinal codes have broad prospects in ultra-reliable low-latency communication (URLLC) scenarios such as self-driving car and factory automation. However, Spinal codes transmitted by short codes need frequent times of feedback, while transmitted by long codes have a high decoding complexity, which limits the practical application of Spinal codes. In this work, a new type of encoding scheme named as segmented CRC-aided scheme is proposed. In this scheme, message is equally divided into λ segments, each of which is concatenated with a cyclic redundancy check (CRC) sequence. At the decoding end, all the segments are decoded in parallel, and the correspondingly CRC check results are collected and transmitted back to the encoder together. The encoder judges the current decoding state through the feedback and then constructs the next encoding pass accordingly. The segmented CRC-aided scheme combines the advantages of long codes transmission and short codes transmission of the Spinal codes, it uses fewer feedbacks, and it can reduce the transmission of redundance bits. Results demonstrate that the proposed scheme has significant performance improvement over the original Spinal encoding scheme by achieving higher code rate with lower encoding complexity.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"86 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91229219","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

Secrecy Performance of Cognitive Radio Networks Using Arbitrary Transmit Antenna Selection and Threshold- Based MRC 基于任意发射天线选择和阈值MRC的认知无线网络保密性能

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891102

Shilpa Thakur, Ajay Singh

引用次数: 0

Relay Selection Strategies for Physical-Layer Security in D2D-Assisted Cellular Networks d2d辅助蜂窝网络物理层安全的中继选择策略

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891400

J. M. Moualeu, T. Ngatched

引用次数: 5

A Simple Approximation for the Sum of Fading Random Variables via a Nakagami-m Distribution 基于Nakagami-m分布的衰落随机变量和的简单逼近

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891077

José David Vega Sánchez, L. Urquiza-Aguiar, M. C. Paredes, Diego Javier Reinoso Chisaguano

{"title":"A Simple Approximation for the Sum of Fading Random Variables via a Nakagami-m Distribution","authors":"José David Vega Sánchez, L. Urquiza-Aguiar, M. C. Paredes, Diego Javier Reinoso Chisaguano","doi":"10.1109/VTCFall.2019.8891077","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8891077","url":null,"abstract":"Most of the classic fading variables can be obtained through Nakagami-m distribution and the sum of them has a pivotal role in the analytical performance evaluation of many practical wireless applications. However, the exact probability density function (PDF) of this sum of fading variables could be difficult to obtain. In this paper, we investigate the performance of the Maximum Likelihood Estimation to find a simple accurate approximation to the probability density function of the sum of Nakagami-m random variables. This approach provides expressions that can be used straightforwardly in the performance analysis of a number of wireless communication systems including multibranch receivers such as Maximal Ratio Combining and Equal Gain Combining, for which we present the application of the proposed framework. Numerical simulations show that our proposed method outperforms the well- known approach based on moment-matching method in terms of accuracy and simplicity. Moreover, the easiness of our proposal makes it suitable to be incorporated in network simulators to model and configure several wireless environments without additional computational complexity.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"29 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89845232","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

Towards Secure Communication for High-Density Longitudinal Platooning 高密度纵向队列安全通信研究

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891548

Markus Sontowski, S. Köpsell, T. Strufe, Christian Zimmermann, A. Weinand, H. Schotten, N. Bißmeyer

引用次数: 0

Bi-Directional Training for Wideband Systems 宽带系统双向训练

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891241

Jialing Liu, Q. Cheng, W. Xiao, Diana Maamari, A. Soong

引用次数: 0

Robust Hybrid Transceiver Designs for Millimeter Wave AF Cooperative Systems 毫米波自动对焦协同系统的鲁棒混合收发器设计

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891258

Zhen Luo, Hongqing Liu

引用次数: 2

Time Dispersion Characteristics of Cross-Polarized 2X2 MIMO Self-Interference Indoor Radio Channels 交叉极化2X2 MIMO自干扰室内无线电信道的时间色散特性

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8890983

Ramez Askar, M. Sarmadi, Fabian Undi, M. Peter, W. Keusgen, T. Haustein

{"title":"Time Dispersion Characteristics of Cross-Polarized 2X2 MIMO Self-Interference Indoor Radio Channels","authors":"Ramez Askar, M. Sarmadi, Fabian Undi, M. Peter, W. Keusgen, T. Haustein","doi":"10.1109/VTCFall.2019.8890983","DOIUrl":"https://doi.org/10.1109/VTCFall.2019.8890983","url":null,"abstract":"In full-duplex wireless communication systems, transmission signals travel through self-interference radio channels before they will be received by the local receivers. This paper studies time dispersion characteristics of these channels for an indoor cross-polarized 2x2 multiple-input-multiple-output antenna (MIMO) system. Four cross- polarized radio channels - excited by two transmit antennas and captured by two receive antennas perpendicularly polarized to the transmit antennas - were measured in an indoor spacious foyer (entrance hall) environment. By means of a vector network analyzer, one gigahertz of bandwidth, which occupies 2-to-3-GHz frequency band, was swept to sound these self-interference channels. The four vector network analyzer test ports were connected to two dually- polarized magnetoelectric dipole antennas that were utilized to observe the self-interference channels. Each of the dipole antennas possesses: Two radio-frequency ports, a hemispherical radiation pattern, and an excellent cross-polarization discrimination properties. The antennas were placed at two meter height and moved in track along the room circumference to measure the self-interference channels at 27 positions. The excellent cross-polarization isolation properties of the utilized antennas has allowed to capture a time- domain instantaneous channel dynamic that exceeds 120 dB - normalized with respect to the transmit power at the antennas' physical ports. This vast dynamic has used to analyze the channel with sliding sensitivity threshold. The channel measurement reports maximum excess delays up to 689 ns. Furthermore, time dispersion parameters and their associated values are discussed and reported in this paper based on the conducted self-interference channel measurements.","PeriodicalId":6713,"journal":{"name":"2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall)","volume":"29 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77870093","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: 2

Transmit Power Minimization for a Multi-Hop SWIPT Decode-and-Forward Sensor Network 多跳SWIPT译码转发传感器网络的传输功率最小化

2019 IEEE 90th Vehicular Technology Conference (VTC2019-Fall) Pub Date : 2019-09-01 DOI: 10.1109/VTCFall.2019.8891203

D. K. P. Asiedu, Hoon Lee, Kyoung-Jae Lee

引用次数: 5