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- research-articleMay 2024
HORCRUX: Accurate Cross Band Channel Prediction
ACM MobiCom '24: Proceedings of the 30th Annual International Conference on Mobile Computing and NetworkingMay 2024, Pages 1–15https://doi.org/10.1145/3636534.3649343Recent advancement in Frequency Domain Duplexing (FDD) enables wireless systems to use different frequency bands for uplink and downlink communication without explicit channel feedback information. The current state-of-the-art approaches either estimate ...
- research-articleApril 2024
Deployment of UAV-assisted 6G wireless networks using whale optimisation algorithm
- Md. Sakir Hossain,
- Nishat Tasnim Haque,
- Sadia Afrin,
- Md. Shakhawat Hossain,
- Md. Faisal Mahmud Anik,
- Swagoto Paul,
- Md. Ileas Pramanik,
- Md. Masudur Rahman
International Journal of Wireless and Mobile Computing (IJWMC), Volume 26, Issue 32024, Pages 251–261https://doi.org/10.1504/ijwmc.2024.137882The UAV-assisted wireless network is envisioned as a key player in the sixth generation (6G) wireless systems. One of the most challenging tasks to make it practically viable is to deploy UAVs considering user density, propagation environment and other ...
- research-articleDecember 2023
ROG: A High Performance and Robust Distributed Training System for Robotic IoT
- Xiuxian Guan,
- Zekai Sun,
- Shengliang Deng,
- Xusheng Chen,
- Shixiong Zhao,
- Zongyuan Zhang,
- Tianyang Duan,
- Yuexuan Wang,
- Chenshu Wu,
- Yong Cui,
- Libo Zhang,
- Yanjun Wu,
- Rui Wang,
- Heming Cui
MICRO '22: Proceedings of the 55th Annual IEEE/ACM International Symposium on MicroarchitectureOctober 2022, Pages 336–353https://doi.org/10.1109/MICRO56248.2022.00032Critical robotic tasks such as rescue and disaster response are more prevalently leveraging ML (Machine Learning) models deployed on a team of wireless robots, on which data parallel (DP) training over Internet of Things of these robots (robotic IoT) can ...
- research-articleOctober 2023
Flexible Priority-based Stream Schedulers in QUIC
PE-WASUN '23: Proceedings of the Int'l ACM Symposium on Performance Evaluation of Wireless Ad Hoc, Sensor, & Ubiquitous NetworksOctober 2023, Pages 91–98https://doi.org/10.1145/3616394.3618267The advent of mobile technologies has led to the development of novel services for end-users, with stringent needs and requirements. In the scope of 5G and Beyond 5G systems, non-terrestrial networks are being considered to meet such demands, with ...
- short-paperOctober 2023
A Low-Cost Open-Source Testbed for Experimental Analysis of Ultra-Dense Wireless Networks
MSWiM '23: Proceedings of the Int'l ACM Conference on Modeling Analysis and Simulation of Wireless and Mobile SystemsOctober 2023, Pages 93–97https://doi.org/10.1145/3616388.3617547Network densification has been a key contributor to the performance improvements of the wireless ecosystem, particularly in terms of aggregate capacity. In other words, adding more base stations (BSs) or access points (APs) allows for spatial reuse of ...
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- research-articleOctober 2023JUST ACCEPTED
English Listening Teaching Mode under Artificial Intelligence Speech Synthesis Technology
ACM Transactions on Asian and Low-Resource Language Information Processing (TALLIP), Just Accepted https://doi.org/10.1145/3615866To discuss the application of artificial intelligence (AI) speech synthesis technology and wireless network technology in English listening teaching, firstly, the present situation of English listening teaching is analyzed. Secondly, a questionnaire is ...
- keynoteOctober 2023
Internet of Video Things: Technical Challenges and Emerging Applications
MM '23: Proceedings of the 31st ACM International Conference on MultimediaOctober 2023, Pages 1–2https://doi.org/10.1145/3581783.3613910The worldwide flourishing of the Internet of Things (IoT) in the past decade has enabled numerous new applications through the internetworking of a wide variety of devices and sensors. In recent years, visual sensors have seen a considerable boom in IoT ...
- research-articleOctober 2023
Optimizing Utility-Energy Efficiency for the Metaverse over Wireless Networks under Physical Layer Security
MobiHoc '23: Proceedings of the Twenty-fourth International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile ComputingOctober 2023, Pages 250–259https://doi.org/10.1145/3565287.3610271The Metaverse, an emerging digital space, is expected to offer various services mirroring the real world. Wireless communications for mobile Metaverse users should be tailored to meet the following user characteristics: 1) emphasizing application-...
- research-articleOctober 2023
5G NR Monostatic Positioning with Array Impairments: Data-and-Model-Driven Framework and Experiment Results
ISACom '23: Proceedings of the 3rd ACM MobiCom Workshop on Integrated Sensing and Communications SystemsOctober 2023, Pages 1–6https://doi.org/10.1145/3615984.3616502In this article, we present an intelligent framework for 5G new radio (NR) indoor positioning under a monostatic configuration. The primary objective is to estimate both the angle of arrival and time of arrival simultaneously. This requires capturing ...
- short-paperOctober 2023
TinyRIC: Supercharging O-RAN Base Stations with Real-time Control
ACM MobiCom '23: Proceedings of the 29th Annual International Conference on Mobile Computing and NetworkingOctober 2023, Article No.: 136, Pages 1–3https://doi.org/10.1145/3570361.3615743The emergence of latency-critical use cases for cellular networks has necessitated the need for real-time (RT) network performance optimization. While solutions such as the O-RAN architecture provide primitives for non-RT and near-RT control, the ...
- research-articleOctober 2023
Low-Bandwidth Self-Improving Transmission of Rare Training Data
ACM MobiCom '23: Proceedings of the 29th Annual International Conference on Mobile Computing and NetworkingOctober 2023, Article No.: 86, Pages 1–15https://doi.org/10.1145/3570361.3613300A severe bandwidth mismatch between incoming sensor data rate and wireless backhaul bandwidth often exists on unmanned probes when collecting new training data for machine learning (ML). To overcome this mismatch, we describe a self-improving ML-based ...
- research-articleJuly 2023
A Timed Calculus with Mobility for Wireless Networks
CNIOT '23: Proceedings of the 2023 4th International Conference on Computing, Networks and Internet of ThingsMay 2023, Pages 653–657https://doi.org/10.1145/3603781.3603896Unreliability of communication links is a very common problem in wireless networks, and node mobility as one of significant features may importantly affect the reliability of communication links. In this paper, we present a Timed Calculus with Mobility ...
- ArticleJuly 2023
An -Approximation Algorithm for Minimum Power k Edge Disjoint st-Paths
- research-articleJune 2023
Approximate Wireless Communication for Federated Learning
WiseML'23: Proceedings of the 2023 ACM Workshop on Wireless Security and Machine LearningJune 2023, Pages 21–26https://doi.org/10.1145/3586209.3591399This paper presents an approximate wireless communication scheme for federated learning (FL) model aggregation in the uplink transmission. We consider a realistic channel that reveals bit errors during FL model exchange in wireless networks. Our study ...
- abstractJune 2023
Switching in the Rain: Predictive Wireless x-haul Network Reconfiguration
SIGMETRICS '23: Abstract Proceedings of the 2023 ACM SIGMETRICS International Conference on Measurement and Modeling of Computer SystemsJune 2023, Pages 101–102https://doi.org/10.1145/3578338.35935744G, 5G, and smart city networks often rely on microwave and millimeter-wave x-haul links. A major challenge associated with these high frequency links is their susceptibility to weather conditions. In particular, precipitation may cause severe signal ...
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ACM SIGMETRICS Performance Evaluation Review: Volume 51 Issue 1June 2023 - extended-abstractJune 2023
Towards Precise, Ubiquitous and Real-Time Positioning
MobiSys '23: Proceedings of the 21st Annual International Conference on Mobile Systems, Applications and ServicesJune 2023, Pages 615–617https://doi.org/10.1145/3581791.3597506Positioning is an enabler for many location-based services in the vertical industrial domain such as autonomous driving and robot-to-cobot interaction, to name a few. Industry and academia are actively enabling localization through 5G and WiFi as they ...
- short-paperJune 2023
Effect of Power Conversion Efficiency of the RF Energy Harvester on the Security and Data Rate of the Self-Sustainable IoT Devices
EICC '23: Proceedings of the 2023 European Interdisciplinary Cybersecurity ConferenceJune 2023, Pages 121–124https://doi.org/10.1145/3590777.3590796This paper presents a study on the impact of the power conversion efficiency (PCE) of RF energy harvesters on the performance of wireless Internet-of-Things (IoT) devices including the sampling rate and data security. An RF energy harvester to harvest ...
- research-articleJune 2023
Adding Empirical Real-Time Guarantees to LoRaWAN
RTNS '23: Proceedings of the 31st International Conference on Real-Time Networks and SystemsJune 2023, Pages 99–107https://doi.org/10.1145/3575757.3593662LoRaWAN is a wide area network solution for large-area sensor networks; long range (LoRa) transmissions can be achieved, with low power transmissions, but only for very low bandwidth. One of the main challenges is the lack of guarantees in LoRaWAN, ...
- research-articleFebruary 2023
HexRIC: Building a Better near-Real Time Network Controller for the Open RAN Ecosystem
HotMobile '23: Proceedings of the 24th International Workshop on Mobile Computing Systems and ApplicationsFebruary 2023, Pages 15–21https://doi.org/10.1145/3572864.3580329The Open Radio Access Network (O-RAN) architecture has served as a key enabler for the programmable control of cellular networks through its introduction of the RAN Intelligent Controller (RIC). However, the RIC solutions available today are hobbled by ...
- posterJanuary 2023
Use of a Long Short-Term Memory Network in Radio Tomography to Track People Indoors
SenSys '22: Proceedings of the 20th ACM Conference on Embedded Networked Sensor SystemsNovember 2022, Pages 859–860https://doi.org/10.1145/3560905.3568056The aim of the research is to develop a system enabling effective and efficient tracking of people inside buildings using radio waves. The presented concept uses radio tomography imaging (RTI) as a passive analysis of radio wave interference as well as ...