M. Nagy, Teemu Kärkkäinen, Arseny Kurnikov, J. Ott
{"title":"Web-Based Framework for Accessing Native Opportunistic Networking Applications","authors":"M. Nagy, Teemu Kärkkäinen, Arseny Kurnikov, J. Ott","doi":"10.1109/WoWMoM.2019.8793026","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793026","url":null,"abstract":"Opportunistic networking is one way to realize pervasive applications while placing little demand on network infrastructure, especially for operating in less well connected environments. In contrast to the ubiquitous network access model inherent to many cloud-based applications, for which the web browser forms the user front end, opportunistic applications require installing software on mobile devices. Even though app stores (when accessible)offer scalable distribution mechanisms for applications, a designer needs to support multiple OS platforms and only some of those are suitable for opportunistic operation to begin with. In this paper, we present a web-based framework that allows users to interact with opportunistic application content without installing the respective app and thus also includes users whose mobile OSes do not support opportunistic networking at all via minimal stand-alone infrastructure. We describe our system and protocol design, validate its operation using simulations and a testbed. We implement web versions of two existing native mobile opportunistic applications: PeopleFinder and Here & Now.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114979834","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":"Wideband Temporal Spectrum Sensing Using Cepstral Features","authors":"Hanke Cheng, B. L. Mark, Y. Ephraim","doi":"10.1109/WoWMoM.2019.8793002","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793002","url":null,"abstract":"Spectrum sensing enables secondary users in a cognitive radio network to opportunistically access portions of the spectrum left idle by primary users. Tracking spectrum holes jointly in time and frequency over a wide spectrum band is a challenging task. In one approach to wideband temporal sensing, the spectrum band is partitioned into narrowband subchannels of fixed bandwidth, which are then characterized via hidden Markov modeling using average power or energy measurements as observation data. Adjacent, correlated subchannels are recursively aggregated into channels of variable bandwidths, corresponding to the primary user signals. Thus, wideband temporal sensing is transformed into a multiband sensing scenario by identifying the primary user channels in the spectrum band. However, future changes in the configuration of the primary user channels in the multiband setup cannot generally be detected using an energy detector front end for spectrum sensing. We propose the use of a cepstral feature vector to detect changes in the spectrum envelope of a primary user channel. Our numerical results show that the cepstrum-based spectrum envelope detector performs well under moderate to high signal-to-noise ratio conditions1.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124830535","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":"Ground Localization with a Drone and UWB Antennas: Experiments on the Field","authors":"Francesco Betti Sorbelli, M. C. Pinotti","doi":"10.1109/WoWMoM.2019.8793016","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793016","url":null,"abstract":"In this work, we evaluate the accuracy of the Drone Range-Free (DRF) localization algorithm presented in the literature on a simple test-bed built using the Decawave Ultra Wide Band (UWB) Sensors Kit MDEK1001 and a customary drone. DRF localizes an IoT device at the intersection of the perpendicular bisectors of two chords of its receiving disk. Despite its simplicity and elegance, DRF poses great challenges in a real implementation on the field because the device's receiving disk is in reality far from a perfect circle. We solve this problem by relaxing the range-free assumption and by discovering almost perfect inner-circles in the IoT-device receiving disk using the ability of the MDEK1001 sensors of taking distance measurements. With a set of simplified experiments that aim to localize a single antenna, we show that, using the inner-circle method, we significantly improve on the localization accuracy without loosing the DRF simplicity and elegance. The accuracy of the new inner-circle method, along with that of a simplified range-based multilateration method, is also proved by localizing three antennas posed at the vertices of a pre-determined triangle.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128993307","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 Software Defined Multi-Path Traffic Offloading System for Heterogeneous LTE-WiFi Networks","authors":"Pengyuan Du, Qi Zhao, M. Gerla","doi":"10.1109/WoWMoM.2019.8793045","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793045","url":null,"abstract":"Ever growing mobile users, devices and applications lead to tremendous volume of mobile network traffic nowadays. Current cellular network infrastructure is facing the problem of lacking sufficient bandwidth. Many existing works propose to solve this issue by offloading mobile traffic to wireless local area network. However, traditional single path communications limit the traffic offloading performance due to the network handoff caused by user mobility. To further explore the benefits and potential of traffic offloading in heterogeneous mobile networks, we develop a software-defined and multipath-based network aggregation system specifically for LTE-WiFi traffic offloading in this paper. Our system relies on Multipath TCP and Software-Defined Networking technologies: the former is run on mobile devices to create TCP subflows over multiple network connections, while the latter is leveraged to direct those subflows for proper usage of network bandwidth via a centralized controller. To obtain the appropriate bandwidth allocation, we formulate traffic offloading as a network optimization problem. Furthermore, the controller configures the rate of subflows in each radio access network to optimize the objective of load balancing and fairness. The devised controller is also responsive to network status change, and the centralized design facilitates network resource management and policy making. A prototype of our traffic offloading system is implemented using network emulator Mininet-WiFi. Emulation results prove its efficiency in throughput maximization, fairness, and service continuity in heterogeneous LTE-WiFi networks.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129251359","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}
Thanchanok Sutjarittham, Gary Chen, H. Gharakheili, V. Sivaraman, S. Kanhere
{"title":"Measuring and Modeling Car Park Usage: Lessons Learned from a Campus Field-Trial","authors":"Thanchanok Sutjarittham, Gary Chen, H. Gharakheili, V. Sivaraman, S. Kanhere","doi":"10.1109/WoWMoM.2019.8792972","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8792972","url":null,"abstract":"Transportation is undergoing significant change due to the growth of ride-sharing, electric cars, car-sharing, and self-driving cars. Organizations that have significant real-estate dedicated to on-premise employee car parking are therefore looking to adapt the use of this space, motivated by the opportunity to become greener, improve sharing, and pursue new revenue opportunities. In this paper, we outline our experiences from instrumenting, measuring, and analyzing car-park usage in our University's multi-storey parking lot, and building a model that explores its use for multiple purposes in the near future. Our specific contributions are as follows: (1)We begin by describing experiences and challenges in measuring car-park usage on our campus and cleaning the collected data; (2)We analyze data collected over 23 weeks (covering teaching and non-teaching periods)and draw insights into the usage patterns, including occupancy patterns by times-of-day and days-of-week, and identifying various user groups based on attributes such as arrival time and duration of stay; (3)We develop a queuing model to optimize the use of parking space for generating revenue from shared cars with minimal impact on private car users. We believe our study guides campus managers wanting to generate more value from their existing parking resources.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130337260","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}
Julian Heinovski, Lukas Stratmann, Dominik S. Buse, Florian Klingler, Mario Franke, Marie-Christin H. Oczko, C. Sommer, I. Scharlau, F. Dressler
{"title":"Modeling Cycling Behavior to Improve Bicyclists' Safety at Intersections - A Networking Perspective","authors":"Julian Heinovski, Lukas Stratmann, Dominik S. Buse, Florian Klingler, Mario Franke, Marie-Christin H. Oczko, C. Sommer, I. Scharlau, F. Dressler","doi":"10.1109/WoWMoM.2019.8793008","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793008","url":null,"abstract":"Road traffic is continuously increasing worldwide and Vulnerable Road Users (VRUs)such as bicyclists are ever more susceptible to injuries from crashes. Vehicular Ad-hoc Network (VANET)technologies in combination with Advanced Driver Assistance Systems (ADAS)are currently being evaluated to enhance road traffic safety. The same technology is now also considered for warning cyclists about imminent crashes. Prototypes for such VANET -enabled bicycles already exist, however, the primary problem here is verification and test due to immediate safety concerns for the participants. Computer simulation is considered a more feasible alternative; however, realistic behavior models of VRUs are not available in the required quality and quantity. We developed a virtual cycling environment to address this issue, allowing to study and record cyclists' behavior. We collected (and make available)traces from a variety of subjects cycling towards an intersection for three different safety critical scenarios. As proof of concept, we then used these traces in our vehicular networking simulation framework to assess the impact of a simple VANET solution on the cyclists' safety. Our results demonstrate the need for such an integrated framework for empirical studies as well as for simulation-based exploration of system configurations.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129836491","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}
Ayman Younis, Tuyen X. Tran, Brian Qiu, D. Pompili
{"title":"Demo Abstract: Mobile Augmented Reality Leveraging Cloud Radio Access Networks","authors":"Ayman Younis, Tuyen X. Tran, Brian Qiu, D. Pompili","doi":"10.1109/WoWMoM.2019.8793038","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793038","url":null,"abstract":"Cloud Radio Access Network (C-RAN) is emerging as a transformative paradigmatic architecture for the next generation of wireless cellular networks. In this demo, a programmable C-RAN testbed is implemented where the Base Band Unit (BBU) is virtualized using the OpenAirInterface (OAI) software platform, and the eNodeB and User Equipment (UEs) are implemented using Software-Defined Radio (SDR) USRP boards. Based on our testbed architecture, we further develop a novel hierarchical computation mechanism to improve the performance of mobile Augmented Reality (AR) applications.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123713893","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":"Energy Sharing Based Content Delivery in Mobile Social Networks","authors":"Aashish Dhungana, E. Bulut","doi":"10.1109/WoWMoM.2019.8793005","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793005","url":null,"abstract":"In mobile social networks, the mobility and connectivity of nodes are often non-deterministic. Source and destination nodes may not have a meeting opportunity and the content dissemination and delivery most of the time require the cooperation of nodes. However, this causes nodes spend energy, thus, they may be reluctant to participate in the dissemination process to conserve energy. One approach to motivate user participation is to transfer energy for their service so that their potential loss is compensated. However, this makes routing problem much challenging as the source node needs to decide not only the best relay nodes but also the amount of energy transfer to them. In this paper, we study this energy sharing based content delivery problem in mobile social networks. To this end, we assume that a node is willing to carry the content as long as the energy received for this delivery lasts, after which it drops the content (i.e., time-to-live). We utilize optimal stopping theory and dynamic programming to model the content delivery problem under this energy sharing paradigm between the nodes. The simulation results show that energy sharing based content delivery can potentially increase the routing performance under certain settings.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"155 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122452238","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}
D. Ciullo, T. Spyropoulos, N. Nikaein, B. Jechoux, Giannis Sarantidis
{"title":"Sizing Up User Traffic: Flow-based Mobile Data Offloading Over WiFi","authors":"D. Ciullo, T. Spyropoulos, N. Nikaein, B. Jechoux, Giannis Sarantidis","doi":"10.1109/WoWMoM.2019.8792977","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8792977","url":null,"abstract":"We propose a smart offloading policy that dynamically assigns data flows to the WiFi and cellular interfaces, so as to minimize a given cost function (related to energy consumption and cellular plan usage), while keeping the average per-flow delay bounded. The basic insight of the proposed Threshold Policy is to assign larger flows to the network that provides the best rate (often WiFi), and smaller flows to the other, since energy is generally related to the time needed to send/receive data. However, choosing the size cutoff optimally must also consider load-balancing and queueing aspects, WiFi availability, flow size statistics, and user/application preferences. We validate our model against simulations, and show that our policy outperforms other standard or smart policies, achieving considerably better energy-delay trade-offs, while only offloading a small percentage of (large)flows. Initial measurements performed on an Android-based offloading prototype further support our findings.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122102117","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":"mmWave in Vehicular Networks: Leveraging Traffic Signals for Beam Design","authors":"Zana Limani Fazliu, F. Malandrino, C. Chiasserini","doi":"10.1109/WoWMoM.2019.8793039","DOIUrl":"https://doi.org/10.1109/WoWMoM.2019.8793039","url":null,"abstract":"Vehicle-to-infrastructure millimeter-wave (mmWave)communication represents a potential solution to capacity shortage in mobile networks. However, effective beam alignment between senders and receivers requires knowledge of the position of vehicles, which is often impractical to obtain in real time. We propose to solve this problem by leveraging the traffic signals, e.g., semaphores, that regulate the vehicular mobility. As an example, we may coordinate beams with red semaphore lights, as they correspond to higher vehicle densities and lower speeds. In order to evaluate such intuition, we propose a mmWave communication model accounting for both the distance and the speed of vehicles being served, and use such a model to compare several beam design strategies. For increased realism, we consider as our reference scenario a large-scale, real-world vehicular trace depicting the mobility in Luxembourg. Our results show that our approach outperforms static beam design based on road topology alone, and, remarkably, it yields a performance comparable to that of solutions based on real-time mobility information.","PeriodicalId":372377,"journal":{"name":"2019 IEEE 20th International Symposium on \"A World of Wireless, Mobile and Multimedia Networks\" (WoWMoM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126928371","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}