A5083949715- Energy Efficient Wireless Sensor Networks
- Mobile Ad Hoc Networks
- Opportunistic and Delay-Tolerant Networks
- Indoor and Outdoor Localization Technologies
- Caching and Content Delivery
- Underwater Vehicles and Communication Systems
- IoT and Edge/Fog Computing
- Wireless Networks and Protocols
- Energy Harvesting in Wireless Networks
- Security in Wireless Sensor Networks
- Cloud Computing and Resource Management
- Context-Aware Activity Recognition Systems
- Water Systems and Optimization
- Network Security and Intrusion Detection
- Advanced Wireless Network Optimization
- Speech and Audio Processing
- Software-Defined Networks and 5G
- Cooperative Communication and Network Coding
- Anomaly Detection Techniques and Applications
- Target Tracking and Data Fusion in Sensor Networks
- Image and Video Quality Assessment
- Green IT and Sustainability
- Irrigation Practices and Water Management
- UAV Applications and Optimization
- Data Stream Mining Techniques
Texas A&M University
2015-2024
Mitchell Institute
2013-2016
University of Virginia
2004-2009
University of Minnesota System
2006
The focus of surveillance missions is to acquire and verify information about enemy capabilities positions hostile targets. Such often involve a high element risk for human personnel require degree stealthiness. Hence, the ability deploy unmanned missions, by using wireless sensor networks, great practical importance military. Because energy constraints devices, such systems necessitate an energy-aware design ensure longevity missions. Solutions proposed recently this type system show...
This article describes one of the major efforts in sensor network community to build an integrated system for surveillance missions. The focus this effort is acquire and verify information about enemy capabilities positions hostile targets. Such missions often involve a high element risk human personnel require degree stealthiness. Hence, ability deploy unmanned missions, by using wireless networks, great practical importance military. Because energy constraints devices, such systems...
Improving the quality of healthcare and prospects "aging in place" using wireless sensor technology requires solving difficult problems scale, energy management, data access, security, privacy. We present AlarmNet, a novel system for assisted living residential monitoring that uses two-way flow analysis between front- back-ends to enable context-aware protocols are tailored residents' individual patterns living. AlarmNet integrates environmental, physiological, activity sensors scalable...
Situational awareness in a disaster is critical to effective response. Disaster responders require timely delivery of high volumes accurate data make correct decisions. To meet these needs, we present DistressNet, an ad hoc wireless architecture that supports response with distributed collaborative sensing, topology-aware routing using multichannel protocol, and resource localization. Sensing suites use mechanisms optimize collection minimize total energy use. Message aided by novel topology...
Target tracking systems, consisting of thousands low-cost sensor nodes, have been used in many application domains such as battlefield surveillance, wildlife monitoring and border security. These applications need to meet certain real-time constraints response transient events, fast-moving targets. While the performance is a major concern these applications, it should be compatible with other important system properties energy consumption accuracy. Hence, desirable ability exploit tradeoffs...
Distributed sensor networks are quickly gaining recognition as viable embedded computing platforms. Current techniques for programming cumbersome, inflexible, and low-level. We introduce EnviroTrack, an object-based distributed middleware system that raises the level of abstraction by providing a convenient powerful interface to application developer geared towards tracking physical environment. EnviroTrack is novel in its seamless integration objects live time space into computational...
The problem of localization wireless sensor nodes has long been regarded as very difficult to solve, when considering the realities real world environments. In this paper, we formally describe, design, implement and evaluate a novel system, called Spotlight. Our system uses spatio-temporal properties well controlled events in network (e.g., light), obtain locations nodes. We demonstrate that high accuracy can be achieved without aid expensive hardware on nodes, required by other systems....
Location information is of paramount importance for wireless sensor networks (WSN). The accuracy the collected data can significantly be affected by an imprecise positioning event interest. Despite location information, real system implementations that do not use specialized hardware localization purposes have been successful. In this paper, we propose a estimation scheme uses probabilistic approach estimating node in network. Our makes additional knowledge topology deployment. We assume...
Energy efficiency is a fundamental issue for outdoor sensor network systems. This article presents the design and implementation of multidimensional power management strategies in VigilNet, major recent effort to support long-term surveillance using power-constrained devices. A novel tripwire service integrated with an effective sentry duty cycle scheduling order increase system lifetime, collaboratively. The partitions into distinct, nonoverlapping sections allows each section be scheduled...
Despite the advances in hardware for hand-held mobile devices, resource-intensive applications (e.g., video and image storage processing or map-reduce type) still remain off bounds since they require large computation capabilities. Recent research has attempted to address these issues by employing remote servers, such as clouds peer devices. For devices deployed dynamic networks (i.e., with frequent topology changes because of node failure/unavailability mobility a cloud), however,...
The node localization problem in mobile sensor networks has received significant attention. Recently, particle filters adapted from robotics have produced good accuracies conventional settings. In spite of these successes, state-of-the-art solutions suffer significantly when used challenging indoor and environments characterized by a high degree radio signal irregularity. New are needed to address challenges. We propose fuzzy logic-based approach for environments. Localization is formulated...
We present the design, implementation and evaluation of a simple, practical cost effective localization solution, called walking GPS, that can be used in real, manual deployments wireless sensor networks. evaluate our solution exclusively real MICA2 XSM motes. Our experiments show 100% deployed motes localize (i.e,. have location position) average errors are within 1 to 2 meters, due mainly limitations existing commercial GPS devices.
This paper deals with a new medical information system called Alarm Net designed for smart healthcare. Based on an advanced Wireless Sensor Network (WSN), it specifically targets assisted-living residents and others who may benefit from continuous remote health monitoring. We present the advantages, objectives, status of built at Department Computer Science UVA. Early results prototype suggest strong potential WSNs to open research perspectives ad hoc deployment multi-modal sensors improved...
The node localization problem in Wireless Sensor Networks has received considerable attention, driven by the need to obtain a higher location accuracy without incurring large, per node, cost (dollar cost, power consumption and form factor). Despite efforts made, no system emerged as robust, practical, solution for realistic, complex, outdoor environments. In this paper, we argue that existing algorithms, individually, work well single sets of assumptions. These assumptions do not always...
A wireless sensor network can get separated into multiple connected components due to the failure of some its nodes, which is called a "cut." In this paper, we consider problem detecting cuts by remaining nodes network. We propose an algorithm that allows 1) every node detect when connectivity specially designated has been lost, and 2) one or more (that are special after cut) occurrence cut. The distributed asynchronous: needs communicate with only those within communication range. based on...
This paper presents the $\underline{\textbf{saf}}$e sub$\underline{\textbf{flo}}$w (Saflo) eBPF-based multipath TCP (MPTCP) scheduler, designed to mitigate traffic analysis attacks in cellular networks. Traffic attacks, which exploit vulnerabilities Downlink Control Information (DCI) messages, remain a significant security threat LTE/5G To counter such threats, Saflo scheduler employs communication combined with additional security-related tasks. Specifically, it utilizes eBPF tools operate...
The problem of localization in wireless sensor networks where nodes do not use ranging hardware, remains a challenging problem, when considering the required location accuracy, energy expenditure and duration phase. In this paper we propose framework, called StarDust, for network based on passive optical components. StarDust are equipped with retro-reflectors. An aerial device projects light towards deployed network, records an image reflected light. processing algorithmis developed...
Numerous recent research efforts have been devoted to edge computing due its key role in supporting emerging IoT applications. Prior deploying technologies real- world environments, they need be adequately tested, tuned and validated. However, our best knowledge, a testing platform for that provides both networking realism at low cost is still missing. In this paper, we present EmuEdge, hybrid emulator based on Linux netns Xen full-stack emulation. Supporting container VM, EmuEdge the first...
Acyclic flow networks, present in many infrastructures of national importance (e.g., oil and gas water distribution systems), have been attracting immense research interest. Existing solutions for detecting locating attacks against these proven costly imprecise, particularly when dealing with large-scale systems. In this article, to the best our knowledge, first time, we investigate how mobile sensor networks can be used optimal event detection localization acyclic networks. We propose idea...