{"title":"ACAC: An Airtime-Aware Centralized Association Control System in 802.11ac WLANs","authors":"J. Yao, Wenjia Wu, Ming Yang, Junzhou Luo","doi":"10.1109/MSN48538.2019.00063","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00063","url":null,"abstract":"In recent years, 802.11ac wireless local area networks (WLANs) have been popular in campus and enterprise environments, and a large number of access points (APs) are densely deployed to meet the rapidly increasing clients' demand. In such networks, it is challenging to promote the performance of AP-client association since numerous clients need to find their respective optimal APs under the conditions of multiple capability-limited APs and a small number of available channels. Thus, the conventional association mechanism that only utilizes local information on the client side, such as received signal strength indicator (RSSI), may lead to poor network performance. In this context, we propose and implement an airtime-aware centralized association control system that deals with client requests in a centralized manner and makes AP-client association decisions according to the global information, that is, AP airtime utilization and client requests' RSSI. In particular, we design an AP airtime measurement method to obtain AP airtime utilization from the ath10k driver, and present an airtime-aware AP selection algorithm to implement AP selection policy. Furthermore, we develop an experimental testbed, and conduct the experiments to evaluate the performance of our system. The results demonstrate that our system can significantly improve network throughput and effectively guarantee clients' fairness.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124510702","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}
Jin Zhang, Fuxiang Wu, Wen Hu, Qieshi Zhang, Weitao Xu, Jun Cheng
{"title":"WiEnhance: Towards Data Augmentation in Human Activity Recognition Using WiFi Signal","authors":"Jin Zhang, Fuxiang Wu, Wen Hu, Qieshi Zhang, Weitao Xu, Jun Cheng","doi":"10.1109/MSN48538.2019.00065","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00065","url":null,"abstract":"Recent research have devoted significant efforts on the utilization of WiFi signals to recognize various human activities. An individual's limb motions in the WiFi spectrum could interfere wireless signal propagation which manifested as unique patterns for activities recognition. Existing approaches though yielding reasonable performance in certain cases, are ignorant of a major challenge. The performed activities of the individual normally have inconsistent speed in different situations and time. Besides that the wireless signal reflected by human bodies normally carry substantial information that is specific to that subject. The activity recognition model trained on a certain individual may not work well when being applied to predict another individual's activities. To address this challenge, we propose WiEnhance, a WiFi based activity recognition system that synthesize variant activities data and mitigate the impact of activity inconsistency and subject-specific issues. We conduct extensive experiments and show an average 15.6% performance improvement on activity recognition.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117288957","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}
{"title":"A Cooperative Indoor Localization Enhancement Framework on Edge Computing Platforms for Safety-Critical Applications","authors":"Chun Wang, Juan Luo, Qian He","doi":"10.1109/MSN48538.2019.00077","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00077","url":null,"abstract":"With the maturity and popularity of the Internet of Things (IoT), wireless communication techniques have been vastly applied in daily lives. However, indoor localization has been remained as a challenge due to the insufficient accuracy. In this paper, a cooperative localization method called \"Reliable And Cooperative Indoor Localization (RACIL)\" framework is proposed to determine a target location under the coverage of multiple WSN schemes like WiFi, Blutooth/BLE, Zigbee, and so on. The calculated \"intermediate result\" of target location from each WSN scheme are further evaluated by a confidence degree mechanism on the edge computing platforms for a \"weighted center\" as the final target location. In such a way, both the accuracy and reliability of localization are improved. In order to evaluate the proposed RACIL framework, Matlab simulation and a real tunnel environment emulating coal mining scenario are set up separately for the analysis of location accuracy and capability. The experimental results show that RACIL improves not only the location accuracy but also the location rate in the coverage area with the presence of unreliable anchor nodes in the network.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"536 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120878376","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}
Yuanhao Feng, Panlong Yang, Ziyang Chen, Gang Huang, Yubo Yan, Xiangyang Li
{"title":"RF-Recorder: A Contactless Music Play Recording System Using COTS RFID","authors":"Yuanhao Feng, Panlong Yang, Ziyang Chen, Gang Huang, Yubo Yan, Xiangyang Li","doi":"10.1109/MSN48538.2019.00021","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00021","url":null,"abstract":"In this paper, we propose a system called \"RFRecorder\" based on COTS RFID system which can inspect the string vibration and recognize the tone and tempo accurately. Our system can recover the music score played by some string instruments such as ukulele. Specifically, the string vibration influences the reflection of RF signal and causes a phase change. This change can be captured and analyzed to recover the frequency of the string vibration. In addition, the RFID tag is attached on the body of instrument but not on the string, which can not affect the music playing. Compared to the recorder, our system is immune to the environmental noise. Furthermore, it also can work on NLoS scenario. For single-string vibration, we use compressive sensing to recover the frequency duo to the low sampling rate of the COTS RFID. For multiple-string vibration, we recognize the music tone using machine learning method. We build a prototype and test the performance using guitar, ukulele and zither, which achieves 90%, 89%, 85% accuracy respectively.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124084732","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}
{"title":"POI Recommendation Based on First-Order Collaborative Filtering Tree","authors":"Jinghua Zhu, Shengchao Ma, Jinbao Li","doi":"10.1109/MSN48538.2019.00058","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00058","url":null,"abstract":"Point-Of-Interest (POI) recommendation plays an important role in Location-Based Social Networks(LBSN), which is widely used in popular attraction recommendations and travel route planning applications. The traditional recommendation algorithms fail to make full use of social relationships, user check-in distribution features and geographic information because they only use a simple linear function to model the above features. In order to solve the existing problems, we propose a recommendation framework-NCFT(Neural Collaborative Filtering Tree), which can fuse various side information. In the NCFT model, we propose an unsupervised user check-in distribution feature extractor, namely CD-Ex, which unsupervised learning user checkin distribution features. We also propose to build a user-based collaborative filtering tree and item-based collaborative filtering tree, and use the idea of messaging to learn deep representations of users and items. In these two modules, we use multi-head attention and vanilla attention to learn the representations of users and POIs. As for the user social relationship, we use the user's friends in the user-based collaborative tree to assign weights and aggregate his friends' features. The experimental results show that our model has a significant improvement in AUC and F1 compared to other models.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127171732","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}
Ecaiss, Tian Wang, Haipeng Dai, Weiping Zhu, Xiaoyu Wang
{"title":"ECAISS 2019 Organizing Committee","authors":"Ecaiss, Tian Wang, Haipeng Dai, Weiping Zhu, Xiaoyu Wang","doi":"10.1109/msn48538.2019.00014","DOIUrl":"https://doi.org/10.1109/msn48538.2019.00014","url":null,"abstract":"Technical Program Committee Peiyin Xiong, Hunan University of Science and Technology, China Weiping Zhu, Wuhan University, China Xiaoyu Wang, Nanjing University, China Lianyong Qi, Qufu Normal University, China Xiaopeng Fan, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, China Xiaoyu Zhu, Central South University, China Yongxuan Lai, Xiamen University, China Xuxun Liu, South China University of Technology, China Kashif Sharif, Beijing Institute of Technology, China Weiwei Fang, Beijing Jiaotong University, China Hui Lin, Fujian Normal University, China Kai Liu, Chongqing University, China Mande Xie, Zhejiang Technology and Business University, China Jingjing Cao, Wuhan University of Technology, China Peng Liu, Hangzhou Dianzi University, China Zhitao Guan, North China Electric Power University, China","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126229764","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}
{"title":"[Title page i]","authors":"","doi":"10.1109/msn48538.2019.00001","DOIUrl":"https://doi.org/10.1109/msn48538.2019.00001","url":null,"abstract":"","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122983070","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}
{"title":"Message from the AI2OT 2019 Workshop Chairs","authors":"","doi":"10.1109/msn48538.2019.00010","DOIUrl":"https://doi.org/10.1109/msn48538.2019.00010","url":null,"abstract":"","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122293432","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}
{"title":"Themis: A Novel Detection Approach for Detecting Mixed Algorithmically Generated Domains","authors":"Chao Zheng, Qian Qiang, Tianning Zang, Wen-Han Chao, Yuan Zhou","doi":"10.1109/MSN48538.2019.00057","DOIUrl":"https://doi.org/10.1109/MSN48538.2019.00057","url":null,"abstract":"As DGA (Domain Generation Algorithm) detection technologies and systems become more and more complex, more types of AGD (Algorithmically Generated Domain) appear: Dictionary-based AGD, Hash-based AGD, etc. This paper applies deep learning to the field of network security, proposes a lightweight AGD detection approach, Themis, which can classify domain names into legitimate domain names or AGDs through domain name strings. Themis combines WordNet and GRU to capture the different characteristics of legitimate domain name and AGD for classification. Compared with the prior art, Themis has two differences: 1) Themis is the first approach to detect mixed AGD (Arithmetic-based and Dictionary-based); 2) Themis performs well in detecting unknowns AGD.","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124996585","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}
{"title":"Message from the MSN 2019 Chairs","authors":"","doi":"10.1109/msn48538.2019.00005","DOIUrl":"https://doi.org/10.1109/msn48538.2019.00005","url":null,"abstract":"","PeriodicalId":368318,"journal":{"name":"2019 15th International Conference on Mobile Ad-Hoc and Sensor Networks (MSN)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123007733","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}