Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization最新文献

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Challenges in platform-independent UWB ranging and localization systems 与平台无关的超宽带测距和定位系统的挑战
Laura Flueratoru, E. Lohan, D. Niculescu
{"title":"Challenges in platform-independent UWB ranging and localization systems","authors":"Laura Flueratoru, E. Lohan, D. Niculescu","doi":"10.1145/3556564.3558238","DOIUrl":"https://doi.org/10.1145/3556564.3558238","url":null,"abstract":"The Ultra-Wideband (UWB) technology has grown in popularity to the point in which there are numerous UWB transceivers on the market that use different center frequencies, bandwidths, or hardware architectures. At the same time, efforts are made to reduce the ranging and localization errors of UWB systems. Until now, not much attention has been dedicated to the cross-platform compatibility of these methods. In this paper, we discuss for the first time the challenges in obtaining platform-independent UWB ranging and localization systems. We derive our observations from a measurement campaign conducted with UWB devices from three different developers. We evaluate the differences in the ranging errors and channel impulse responses of the devices and show how they can affect ranging mitigation methods customized for one device only. Finally, we discuss possible solutions towards platform-independent UWB localization systems.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123403671","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
Empirical evaluation of short-range wifi vessel-to-shore overwater communications 近程wifi船岸水上通信的实证评价
P. D’orey, M. Gaitán, P. Santos, M. Ribeiro, João B. Sousa, Luís Almeida
{"title":"Empirical evaluation of short-range wifi vessel-to-shore overwater communications","authors":"P. D’orey, M. Gaitán, P. Santos, M. Ribeiro, João B. Sousa, Luís Almeida","doi":"10.1145/3556564.3558240","DOIUrl":"https://doi.org/10.1145/3556564.3558240","url":null,"abstract":"Unmanned vehicles used in ocean science, defense operations and commercial activities collect large amounts of data that is further processed onshore. For real-time information exchange, the wireless link between the unmanned vehicle and onshore devices must be reliable. In this work, we empirically evaluate a WiFi link between an autonomous underwater vehicle on the surface and an onshore device under real-world conditions. This work allowed i) collecting a large-scale realistic dataset and ii) identifying major factors impairing communication in such scenarios. The TX-RX antenna alignment, the operation mode (manual vs automatic) and varying reflecting surface induced by AUV mobility lead to sudden changes (e.g. nulls) in the received signal strength that can be larger than 20 dB. This study provides useful insights to the design of robust vessel-to-shore short-range communications.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123663502","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
Wireless guard for trustworthy spectrum management 无线保护值得信赖的频谱管理
Mukaram Shahid, Sarath Babu, Hongwei Zhang, D. Qiao, Y. Guan, Joshua Ofori Boateng, Taimoor Ul Islam, Guoying Zu, A. Kamal, Mai Zheng
{"title":"Wireless guard for trustworthy spectrum management","authors":"Mukaram Shahid, Sarath Babu, Hongwei Zhang, D. Qiao, Y. Guan, Joshua Ofori Boateng, Taimoor Ul Islam, Guoying Zu, A. Kamal, Mai Zheng","doi":"10.1145/3556564.3558241","DOIUrl":"https://doi.org/10.1145/3556564.3558241","url":null,"abstract":"ARA is a first-of-its-kind wireless living lab for advanced wireless in rural regions. In ARA, users can reserve programmable wireless resources, for instance, Software Defined Radios (SDRs), and wireless spectrum to perform a wide range of of experiments. Given ARA-enabled open access to programmable wireless resources, it is important to enforce proper usage of the available spectrum, thereby ensuring no user (benign or malicious) creates any harmful interference to other experimenters or any incumbent. Therefore, we develop Wireless Guard (WG), a mechanism for wireless spectrum usage monitoring. For WG, we use two approaches for enforcing the spectrum policy: (i) reactive approach and (ii) proactive approach. In this paper, we present the hardware and software architectures of the ARA WG along with the end-to-end pipeline for managing experiments in case of deviation from the spectrum usage policy. Initial evaluations show the effectiveness of WG in enforcing spectrum usage policies in ARA.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125338114","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
Is wifi 802.11mc fine time measurement ready for prime-time localization? wifi 802.11mc精细时间测量为黄金时段定位做好准备了吗?
Shivang Aggarwal, R. Sheshadri, K. Sundaresan, Dimitrios Koutsonikolas
{"title":"Is wifi 802.11mc fine time measurement ready for prime-time localization?","authors":"Shivang Aggarwal, R. Sheshadri, K. Sundaresan, Dimitrios Koutsonikolas","doi":"10.1145/3556564.3558234","DOIUrl":"https://doi.org/10.1145/3556564.3558234","url":null,"abstract":"WiFi's fine time measurement (FTM) based ranging protocol has set the stage for mass adoption of location-aware applications and services in WiFi-pervading enterprise and consumer ecosystems. However, the lack of deployment of such commercial-scale localization solutions has motivated us to conduct a comprehensive experimental study that aims to verify whether WiFi's FTM is indeed ready for prime-time localization. With heterogeneity in operation (devices, environments, and spectrum) being the fundamental essence of commercial deployments, our study focuses on FTM's ability to deliver useable localization under such practical conditions. Being a first of its kind, our study reveals several interesting insights for practical operation of FTM, with the most critical of them being its inability to eliminate substantial offsets in estimated ranges between heterogeneous devices and configurations that degrade performance significantly (up to 20 m error). Albeit a negative result for FTM's readiness, we also propose a simple but promising remedy - an over-the-top auto-calibration solution that allows every WiFi device, when it enters an enterprise environment, to self-calibrate its offsets on-demand, thereby salvaging FTM to render it useful (median error of 2 m) for localization.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130772963","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
SDR-LoRa: dissecting and implementing LoRa on software-defined radios to advance experimental IoT research SDR-LoRa:在软件定义无线电上剖析和实现LoRa,以推进实验性物联网研究
F. Busacca, S. Mangione, I. Tinnirello, S. Palazzo, Francesco Restuccia
{"title":"SDR-LoRa: dissecting and implementing LoRa on software-defined radios to advance experimental IoT research","authors":"F. Busacca, S. Mangione, I. Tinnirello, S. Palazzo, Francesco Restuccia","doi":"10.1145/3556564.3558239","DOIUrl":"https://doi.org/10.1145/3556564.3558239","url":null,"abstract":"In this paper, we present SDR-LoRa, a full-fledged SDR implementation of a LoRa transmitter and receiver. First, we reverse-engineer the LoRa physical layer (PHY) functionalities, including the procedures of packet modulation, demodulation, and preamble detection. Based on this analysis, we develop the first Software Defined Radio (SDR) implementation of the LoRa PHY. Furthermore, we integrate LoRa with an Automatic Repeat Request (ARQ) error detection protocol. SDR-LoRa has been validated on (i) the Colosseum wireless channel emulator; and (ii) a real testbed with USRP radios and commercial-off-the-shelf (COTS) devices. Our experimental results demonstrate that the performance of SDR-LoRa is in line with commercial LoRa systems. We pledge to share the entirety of the SDR-LoRa code.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121239482","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
Designing, building, and characterizing RF switch-based reconfigurable intelligent surfaces 设计,构建和表征基于射频开关的可重构智能表面
M. Rossanese, Placido Mursia, Andres Garcia-Saavedra, Vincenzo Sciancalepore, A. Asadi, X. Costa
{"title":"Designing, building, and characterizing RF switch-based reconfigurable intelligent surfaces","authors":"M. Rossanese, Placido Mursia, Andres Garcia-Saavedra, Vincenzo Sciancalepore, A. Asadi, X. Costa","doi":"10.1145/3556564.3558236","DOIUrl":"https://doi.org/10.1145/3556564.3558236","url":null,"abstract":"In this paper, we present our experience designing, prototyping, and empirically characterizing RF Switch-based Reconfigurable Intelligent Surfaces (RIS). Our RIS design comprises arrays of patch antennas, delay lines and programmable radio-frequency (RF) switches that enable almost-passive 3D beamforming, i.e., without active RF components. We implement this design using PCB technology and low-cost electronic components, and thoroughly validate our prototype in a controlled environment with high spatial resolution codebooks. Finally, we make available a large dataset with a complete characterization of our RIS and present the costs associated with reproducing our design.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116443550","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: 18
Experimental evaluation of virtual reality applications running on next-gen network scenarios with edge cloud assistance 基于边缘云的下一代网络场景下虚拟现实应用的实验评估
Shalini Choudhury, Jakub Kolodziejski, I. Seskar, D. Raychaudhuri
{"title":"Experimental evaluation of virtual reality applications running on next-gen network scenarios with edge cloud assistance","authors":"Shalini Choudhury, Jakub Kolodziejski, I. Seskar, D. Raychaudhuri","doi":"10.1145/3556564.3558235","DOIUrl":"https://doi.org/10.1145/3556564.3558235","url":null,"abstract":"Volumetric video is an emerging key technology for immersive representation of 3D spaces and objects. Rendering volumetric video at client's end requires significant computational power which is challenging especially for mobile devices. One of the ways to mitigate this is to offload the rendering at the edge cloud and stream the video and audio to the thin client. Remote edge-cloud rendering may increase the end-to-end delay of the system due to the added network and processing latency which is greater than local rendering system. We investigate network latency in edge-based remote rendering over NextG networks and identify the bottleneck deteriorating the application performance. Further, we delve into the current state of the art and challenges of performing rendering remotely at the edge cloud and study the associated problems that need to be addressed in order to realize remote augmented reality(AR)/virtual reality (VR). Our prototype implementation shows effectiveness of maintaining the application QoE by prioritizing data at the level of a sub-flow and reducing the motion-to-photon latency.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127116021","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
Time-slicing high throughput wifi networks using centralized queueing and scheduling 使用集中式队列和调度的分时高吞吐量wifi网络
V. Sevani, Purushothaman Saravanan, S. Anand, J. Kuri, Anurag Kumar
{"title":"Time-slicing high throughput wifi networks using centralized queueing and scheduling","authors":"V. Sevani, Purushothaman Saravanan, S. Anand, J. Kuri, Anurag Kumar","doi":"10.1145/3556564.3558237","DOIUrl":"https://doi.org/10.1145/3556564.3558237","url":null,"abstract":"We study fine grained (10s of ms) overlay time-slicing, and centralized queuing and scheduling, for the performance management of \"high throughput\" (HT) IEEE 802.11 standards, where cochannel interference reduces PHY rates and aggregation, causing poor performance. In overlay time-slicing, interference between AP-STA (Access Point and associated Station) links is eliminated by queuing downlink packets in a scheduler, between the wireline network and the APs, and releasing packets to a set of AP-STA links only in their time-slice. This can manage downlink and uplink FTP and HTTP transfers, and downlink packet voice traffic. We utilize a stochastic approximation based closed-loop mechanism that releases only as much data in a time-slice as can be \"served,\" so that the AP-STA links mapped to that time-slice are inactive at the end of their time-slice, thus, eliminating cochannel interference. Fine-grained overlay time-slicing is demonstrated on an experimental network with two cochannel AP-STA pairs, a setting that we see in our campus WiFi network. In our approach, even for small time-slices (20ms to 50ms), for downlink and uplink TCP bulk transfers, in spite of the scheduler working with partial information, the time-slice boundaries are respected, and performance is close to network utility optimal. Fine-grained time-slicing reduces HTTP access delay, prevents TCP connections over the wide area network from reacting to the path interruptions, and also permits slicing of applications such as interactive packet voice.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132784947","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
Coverage and performance analysis of 5G non-standalone deployments 5G非独立部署的覆盖和性能分析
Konstantinos Kousias, Mohammad Rajiullah, G. Caso, Özgü Alay, Anna Brunstorm, L. D. Nardis, Marco Neri, Usman Ali, Maria-Gabriella Di Benedetto
{"title":"Coverage and performance analysis of 5G non-standalone deployments","authors":"Konstantinos Kousias, Mohammad Rajiullah, G. Caso, Özgü Alay, Anna Brunstorm, L. D. Nardis, Marco Neri, Usman Ali, Maria-Gabriella Di Benedetto","doi":"10.1145/3556564.3558233","DOIUrl":"https://doi.org/10.1145/3556564.3558233","url":null,"abstract":"Fifth Generation (5G) networks are becoming the norm in the global telecommunications industry. In this paper, we present the first large-scale measurement study on commercial 5G Non Standalone (NSA) deployments in a European country. We leverage the collected dataset, which covers two Mobile Network Operators (MNOs) in Rome, Italy, to first, study network deployment and radio coverage aspects, and second, explore the performance of two use cases related to enhanced Mobile Broadband (eMBB) and Ultra-Reliable Low Latency Communication (URLLC). Results show that 5G NSA can provide higher downlink throughput and slightly lower latency compared to Fourth Generation (4G) systems. However, performance is influenced by several factors, including propagation conditions, system configurations, and handover events, ultimately highlighting the need for further system optimization.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133569647","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: 9
Reinforcement learning of millimeter wave beamforming tracking over COSMOS platform COSMOS平台上毫米波波束形成跟踪的强化学习
Imtiaz Nasim, P. Skrimponis, A. Ibrahim, S. Rangan, I. Seskar
{"title":"Reinforcement learning of millimeter wave beamforming tracking over COSMOS platform","authors":"Imtiaz Nasim, P. Skrimponis, A. Ibrahim, S. Rangan, I. Seskar","doi":"10.1145/3556564.3558242","DOIUrl":"https://doi.org/10.1145/3556564.3558242","url":null,"abstract":"Communication over large-bandwidth millimeter wave (mmWave) spectrum bands can provide high data rate, through utilizing high-gain beamforming vectors (briefly, beams). Real-time tracking of such beams, which is needed for supporting mobile users, can be accomplished through developing machine learning (ML) models. While computer simulations were used to show the success of such ML models, experimental results are still limited. Consequently in this paper, we verify the effectiveness of mmWave beam tracking over the open-source COSMOS testbed. We particularly utilize a multi-armed bandit (MAB) scheme, which follows reinforcement learning (RL) approach. In our MAB-based beam tracking model, the beam selection is modeled as an action, while the reward of the algorithm is modeled through the link throughput. Experimental results, conducted over the 60-GHz COSMOS-based mobile platform, show that the MAB-based beam tracking learning model can achieve almost 92% throughput compared to the Genie-aided beams after a few learning samples.","PeriodicalId":140152,"journal":{"name":"Proceedings of the 16th ACM Workshop on Wireless Network Testbeds, Experimental evaluation & CHaracterization","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631028","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
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