2019 International Conference on Advanced Technologies for Communications (ATC)最新文献_第5页

Symbol Duration and Adaptive Guard Length for Underwater Acoustic OFDM Systems 水声OFDM系统的符号持续时间和自适应保护长度

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924527

Do Viet Ha, H. Trung, Nguyen Van Duct

{"title":"Symbol Duration and Adaptive Guard Length for Underwater Acoustic OFDM Systems","authors":"Do Viet Ha, H. Trung, Nguyen Van Duct","doi":"10.1109/ATC.2019.8924527","DOIUrl":"https://doi.org/10.1109/ATC.2019.8924527","url":null,"abstract":"This paper focuses on determining the appropriate symbol duration and adaptive guard length for the orthogonal frequency-division multiplexing (OFDM) system using the channel modeling which is derived from the measurement data of the real underwater acoustic (UWA) channel. Especially, the guard length is not fixed as conventional UWA-OFDM systems but adapted to the SNR of the UWA-OFDM system which helps reduce losses in signal energy and spectral efficiency caused by adding guard length. The system has been investigated for different lengths of not only the symbol duration but also the guard length time. For the given system bandwidth of 8 kHz of the considered UWA-OFDM system, the optimal number of subcarriers is specified as 1024 that means the symbol duration of 128 ms. The results of guard length determination are G of 50, 150, 250, and 268 for the SNRs of 20 dB, 25 dB, 30 dB, and 35 dB, respectively. It can be seen that the lower level of SNR is, the shorter length of CP is.These optimal results of symbol duration and guard length are useful for improvements in UWA-OFDM system capacity and performance.","PeriodicalId":409591,"journal":{"name":"2019 International Conference on Advanced Technologies for Communications (ATC)","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127383370","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: 3

A Case Study of GPS Characteristics of Urban Area in Ho Chi Minh Based on Ride-Sharing Services 基于拼车服务的胡志明市城区GPS特征研究

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924518

Trung Tin Nguyen, Thanh Pham Chi, I. Kavalchuk

{"title":"A Case Study of GPS Characteristics of Urban Area in Ho Chi Minh Based on Ride-Sharing Services","authors":"Trung Tin Nguyen, Thanh Pham Chi, I. Kavalchuk","doi":"10.1109/ATC.2019.8924518","DOIUrl":"https://doi.org/10.1109/ATC.2019.8924518","url":null,"abstract":"Intelligent Transportation Systems (ITSs) have always been the common goal for the developing countries and for the fast-paced development of ride-sharing services. It is essential to have an accurate traffic profile for the existing infrastructure to predict behaviour of the traffic and its structure for the efficient operation of the ITS. The most common technology, developed nowadays for the traffic monitoring, is Global Navigation Satellite Systems (GNSS) which allows detection of the current location, speed and motion direction of the vehicles. This paper presents the case study of Ho Chi Minh city, Vietnam using Global Positioning System (GPS) with data collected on both motorbike and car transportation services. The study demonstrates different geographical characteristics of the selected city areas based on the traffic behaviours, surrounding areal infrastructure and GPS signal characteristics, such as strengths, stability, and continuity. The outcome suggests appropriate implementation for GPS-driven application in traffic monitoring, control and potential benefits for network distribution in expanding urban areas. This research also provides a persistence methodology applicable for other cities with similar transportation profile within South East Asia countries.","PeriodicalId":409591,"journal":{"name":"2019 International Conference on Advanced Technologies for Communications (ATC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133945322","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

A Novel Resonator Structure to Improve Power Handling Capacity in Iris Coupled Cavity Filter 一种提高虹膜耦合腔滤波器功率处理能力的新型谐振腔结构

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924558

Tran Thi Thu Huong, AnhVu Tuan, To Thi Thao, V. Y. Vu

引用次数: 2

Application of Antennas and Propagation in Fruit Classification 天线及其传播在水果分类中的应用

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924548

M. Krairiksh

引用次数: 0

Keynote Abstracts: Keynote Talk # 1 Accelerating Industry Advancement 主题演讲1:加速产业发展

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/atc.2019.8924490

D. Baney

引用次数: 0

Smartphone Indoor Positioning System based on BLE iBeacon and Reliable region-based position correction algorithm 基于BLE iBeacon和可靠区域位置校正算法的智能手机室内定位系统

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924524

T. Dinh, N. Duong

引用次数: 1

Message from the REV President 来自REV主席的信息

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/atc.2019.8924523

引用次数: 0

Secrecy Performance Analysis of Cooperative NOMA Networks With Active Protection under α - μ Fading 具有主动保护的协同NOMA网络在α - μ衰落下的保密性能分析

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924561

Tung Pham Huu, Van Nhan Vo, Hung Tran, Truong Xuan Quach, Viet Nguyen Dinh

引用次数: 2

A Novel Integer Linear Programming Formulation for Designing Transparent WDM Optical Core Networks 透明WDM光核心网设计的一种新的整数线性规划公式

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924515

D. Hai

{"title":"A Novel Integer Linear Programming Formulation for Designing Transparent WDM Optical Core Networks","authors":"D. Hai","doi":"10.1109/ATC.2019.8924515","DOIUrl":"https://doi.org/10.1109/ATC.2019.8924515","url":null,"abstract":"The explosive growth of Internet traffic driven by the rise and popularity of bandwidth-intensive services such as virtual realities, big data exchanges and artificial intelligence necessitates for a re-consideration of optical transport networks toward greater capital and operational efficiency from both designing, planning and management perspectives. Thanks to mainly the significant advances in transmission technologies and reconfigurable optical add/drop multiplexers, transparent (all-optical) core networks with wavelength-division multiplexing (WDM) technologies have been well-adopted by network operators as costly optical-electrical-optical interfaces are eliminated together with the merit of scalable upgrade. Efficient designing of such transparent networks therefore has been of ever-growing importance as the spectrum capacity has to be optimized while maintaining the efficiency of operations. Conventional approaches based on integer linear programming formulations and/or heuristic algorithms have nevertheless been focused on optimizing a single metric, i.e., wavelength count or wavelength link usage, and doing so possibly poses penalties to the remaining objectives. In addressing this issue, this paper presents a new integer linear programming formulation incorporating both two performance metrics into consideration with an integrated objective function. We then introduce a framework for analyzing and properly setting up the weight coefficients of integrated objective function so as to guarantee the order of optimization. Extensive numerical studies on realistic topologies highlight the effectiveness of our proposal compared to conventional designs based on single objective formulation in the literature.","PeriodicalId":409591,"journal":{"name":"2019 International Conference on Advanced Technologies for Communications (ATC)","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116658561","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: 5

Invited Talk Abstracts 特邀演讲摘要

2019 International Conference on Advanced Technologies for Communications (ATC) Pub Date : 2019-10-01 DOI: 10.1109/ATC.2019.8924542

S. Kamolphiwong

引用次数: 0