2019 Wireless Days (WD)最新文献_第6页

Clustering Validation for mmWave Multipath Components in Outdoor Transmissions 户外传输毫米波多径组件的聚类验证

2019 Wireless Days (WD) Pub Date : 2019-04-01 DOI: 10.1109/WD.2019.8734258

Miead Tehrani Moayyed, B. Antonescu, S. Basagni

{"title":"Clustering Validation for mmWave Multipath Components in Outdoor Transmissions","authors":"Miead Tehrani Moayyed, B. Antonescu, S. Basagni","doi":"10.1109/WD.2019.8734258","DOIUrl":"https://doi.org/10.1109/WD.2019.8734258","url":null,"abstract":"Radio channel propagation models for the mmWave spectrum are of paramount importance for the design and planning of future 5G wireless communications systems. Since transmitted radio signals are received as clusters of multipath rays, the problem arise about how to identify them, which is functional to extract better spatial and temporal characteristics of the mmWave channel. This paper deals with the validation of the results produced by the clustering process. Specifically, we estimate the effectiveness of the k-means clustering algorithm in predicting the number of clusters by using cluster validity indices (CVIs) and score fusion techniques. We consider directive transmissions in outdoor scenarios and we show the importance of the correct estimation of the number of clusters for the mmWave radio channel simulated with a software ray-tracer tool. Our investigation shows that clustering is no trivial task because the optimal number of clusters is not always given by one or by a combination of more CVIs. In fact, a few of the CVIs used in our study were not capable to determine correct partitioning. However, using score fusion methods and additional techniques we find two solutions for the number of clusters based on power and time of arrival of the multipath rays or based on their angle of arrival.","PeriodicalId":432101,"journal":{"name":"2019 Wireless Days (WD)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832211","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

New Generalized Multistream Spatial Modulation for Wireless Communications 用于无线通信的新型广义多流空间调制

2019 Wireless Days (WD) Pub Date : 2019-04-01 DOI: 10.1109/WD.2019.8734195

N. Ugrelidze, S. Shavgulidze, Mariam Sordia

引用次数: 2

Investigating and Revealing Privacy Leaks in Mobile Application Traffic 调查和揭示移动应用程序流量中的隐私泄露

2019 Wireless Days (WD) Pub Date : 2019-04-01 DOI: 10.1109/WD.2019.8734246

Shuhui Chen, Shuang Zhao, Biao Han, Xiaoyan Wang

引用次数: 3

S-PRAC: Fast Partial Packet Recovery with Network Coding in Very Noisy Wireless Channels S-PRAC:在非常嘈杂的无线信道中使用网络编码的快速部分分组恢复

2019 Wireless Days (WD) Pub Date : 2019-02-27 DOI: 10.1109/WD.2019.8734223

K. D. Irianto, Juan A. Cabrera, Giang T. Nguyen, H. Salah, F. Fitzek

引用次数: 4

Modelling Road Congestion Using a Fuzzy System and Real-World Data for Connected and Autonomous Vehicles 使用模糊系统和真实世界数据对联网和自动驾驶车辆进行道路拥堵建模

2019 Wireless Days (WD) Pub Date : 2019-02-06 DOI: 10.1109/WD.2019.8734238

Luke Abberley, Keeley A. Crockett, Jianquan Cheng

{"title":"Modelling Road Congestion Using a Fuzzy System and Real-World Data for Connected and Autonomous Vehicles","authors":"Luke Abberley, Keeley A. Crockett, Jianquan Cheng","doi":"10.1109/WD.2019.8734238","DOIUrl":"https://doi.org/10.1109/WD.2019.8734238","url":null,"abstract":"Road congestion is estimated to cost the United Kingdom £307 billion by 2030. Furthermore, congestion contributes enormously to damaging the environment and people’s health. In an attempt to combat the damage congestion is causing, new technologies are being developed, such as intelligent infrastructures and smart vehicles. The aim of this study is to develop a fuzzy system that can classify congestion using a real-world dataset referred to as Manchester Urban Congestion Dataset, which contains data similar to that collected by connected and autonomous vehicles. A set of fuzzy membership functions and rules were developed using a road congestion ontology and in conjunction with domain experts. Experiments are conducted to evaluate the fuzzy system in terms of its precision and recall in classifying congestion. Comparisons are made in terms of performance with traditional classification algorithms decision trees and Naïve Bayes using the Red, Amber, and Green classification methods currently implemented by Transport for Greater Manchester to label the dataset. The results have shown the fuzzy system has the ability to predict road congestion using volume and journey time, outperforming both decision trees and Naïve Bayes.","PeriodicalId":432101,"journal":{"name":"2019 Wireless Days (WD)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117303345","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

The TMB path loss model for 5 GHz indoor WiFi scenarios: On the empirical relationship between RSSI, MCS, and spatial streams 5ghz室内WiFi场景TMB路径损耗模型:RSSI、MCS与空间流的经验关系

2019 Wireless Days (WD) Pub Date : 2018-12-03 DOI: 10.1109/WD.2019.8734243

Toni Adame, Marc Carrascosa, B. Bellalta

引用次数: 15

Komondor: a Wireless Network Simulator for Next-Generation High-Density WLANs Komondor:下一代高密度无线局域网的无线网络模拟器

2019 Wireless Days (WD) Pub Date : 2018-11-29 DOI: 10.1109/WD.2019.8734225

Sergio Barrachina-Muñoz, F. Wilhelmi, Ioannis Selinis, B. Bellalta

{"title":"Komondor: a Wireless Network Simulator for Next-Generation High-Density WLANs","authors":"Sergio Barrachina-Muñoz, F. Wilhelmi, Ioannis Selinis, B. Bellalta","doi":"10.1109/WD.2019.8734225","DOIUrl":"https://doi.org/10.1109/WD.2019.8734225","url":null,"abstract":"Komondor is a wireless network simulator for next-generation wireless local area networks (WLANs). The simulator has been conceived as an accessible (ready-to-use) open source tool for research on wireless networks and academia. An important advantage of Komondor over other well-known wireless simulators lies in its high event processing rate, which is furnished by the simplification of the core operation. This allows outperforming the execution time of other simulators like ns-3, thus supporting large-scale scenarios with a huge number of nodes. In this paper, we provide insights into the Komondor simulator and overview its main features, development stages and use cases. The operation of Komondor is validated in a variety of scenarios against different tools: the ns-3 simulator and two analytical tools based on Continuous Time Markov Networks (CTMNs) and the Bianchi’s DCF model. Results show that Komondor captures the IEEE 802.11 operation very similarly to ns-3. Finally, we discuss the potential of Komondor for simulating complex environments – even with machine learning support – in next-generation WLANs by easily developing new user-defined modules of code.","PeriodicalId":432101,"journal":{"name":"2019 Wireless Days (WD)","volume":"208 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115747329","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: 27