A5067436946- Energy Efficient Wireless Sensor Networks
- Advanced Optical Network Technologies
- Indoor and Outdoor Localization Technologies
- Distributed Control Multi-Agent Systems
- Advanced Photonic Communication Systems
- Software-Defined Networks and 5G
- Mobile Ad Hoc Networks
- Distributed systems and fault tolerance
- Advanced Antenna and Metasurface Technologies
- Diverse Topics in Contemporary Research
- Optimization and Search Problems
- Caching and Content Delivery
- Formal Methods in Verification
- Interconnection Networks and Systems
- Peer-to-Peer Network Technologies
- Antenna Design and Analysis
- Security in Wireless Sensor Networks
- Optical Network Technologies
- Metamaterials and Metasurfaces Applications
National University Hospital
2024
National University of Singapore
2024
Beijing University of Posts and Telecommunications
2008-2019
Texas A&M University
2009-2010
Recently, smart surveillance is becoming a very important application of camera sensor networks. Most face recognition and tracking techniques employed in systems rely on the assumption frontal view human face. In order to detect precise orientation by cooperation among multiple cameras, we need guarantee that each point monitored region be covered more than one camera. this paper, address problem Directional if-Coverage (DKC) The DKC different from conventional networks due two aspects:...
Compared to the other types of sensor networks, wireless camera networks can offer much more comprehensive and accurate information in mobile target tracking applications. We propose a dynamic node collaboration scheme for networks. Unlike traditional sensing models, we develop nonlinear localization-oriented model sensors by taking perspective projection observation noises into account. Based on our model, apply sequential Monte Carlo (SMC) technique estimate belief state location. In order...
In wireless sensor networks, most existing works on region coverage mainly concentrate the omnidirectional based full coverage, which ensures that all points in sensor-deployed are covered. contrast, this paper studies problem of exposure-path prevention for directional networks. Because exposure paths prevented as long no moving objects or phenomena can go through a without being detected, does not require and instead it only needs partial coverage. Towards end, we apply percolation theory...
We consider the problem of multi-robot taskallocation when robots have to deal with uncertain utility estimates.Typically an allocation is performed maximize expected utility; we a means for measuring robustness given optimal some measure uncertainty (e.g., probability distribution, or moments such distributions).We introduce new O(n 4 ) algorithm, Interval Hungarian that extends classic Kuhn-Munkres algorithm compute maximum interval deviation (for each entry in assignment matrix) which...
Abstract OBJECTIVES: Recent studies have demonstrated the potential of artificial intelligence (AI) in diagnostic and therapeutic endoscopy for managing gastrointestinal diseases. However, there is limited knowledge perspective endoscopists towards AI technology, particularly Asian community. This study aims to bridge this gap guide policymakers, healthcare providers, technology developers through an Task Force. MATERIALS AND METHODS: An online survey 45 questions exploring (a) perceived...
The first demonstration of a dynamic application-aware labelled optical burst switched network is reported. With the implementation three novel mechanisms, i.e. session initiation protocol peer-to-peer hybrid resource discovery and management, end-to-end label path setup offset time, can support various emerging applications with high efficiency scalability.
To address the demands of emerging applications or services which require not only network resources but also non-network resources, a new optical burst switching (OBS) scenario is proposed and demonstrated in this paper. This can be referred to as service oriented labeled OBS network, Session Initiation Protocol (SIP)-based plane introduced. obtain resource information from control computational respectively, responsible for translating user request, discovering managing through standard...
In this paper, a new method for designing circularly polarized (CP) antenna is proposed, which combines the optical holographic principle and structure of center-fed parallel-plate waveguide. The proposed CP metasurface synthesized using waveguide excited by coaxial feed in center lower plate non-uniform array subwavelength slot-shaped cells. By means slotting top layer at specific positions, unit cells can couple to cylindrical reference wave feed, radiating power into expected direction....