A5070139392- Energy Efficient Wireless Sensor Networks
- Energy Harvesting in Wireless Networks
- IoT Networks and Protocols
- Context-Aware Activity Recognition Systems
- Opportunistic and Delay-Tolerant Networks
- IoT and Edge/Fog Computing
- Distributed systems and fault tolerance
- Mobile Crowdsensing and Crowdsourcing
- Advanced MIMO Systems Optimization
- Advanced Software Engineering Methodologies
- Service-Oriented Architecture and Web Services
- Privacy-Preserving Technologies in Data
- Mobile Ad Hoc Networks
- Advanced Database Systems and Queries
- Underwater Vehicles and Communication Systems
- Modular Robots and Swarm Intelligence
- Peer-to-Peer Network Technologies
- Caching and Content Delivery
- Complex Network Analysis Techniques
- Wireless Body Area Networks
- Advanced Wireless Communication Technologies
- Advanced Graph Neural Networks
- Water Systems and Optimization
- Mobile Agent-Based Network Management
- Smart Grid Security and Resilience
Imperial College London
2016-2025
Xi'an Jiaotong University
2021
The Alan Turing Institute
2019
Collaborative Research Group
2016
Intel (United Kingdom)
2016
Oregon Social Learning Center
2014
Intel (United States)
2012
McGill University
2012
Imperial Valley College
2011
University of Greenwich
2007
Technologies to support the Internet of Things are becoming more important as need better understand our environments and make them smart increases. As a result it is predicted that intelligent devices networks, such WSNs, will not be isolated, but connected integrated, composing computer networks. So far, IP-based largest network in world; therefore, there great strides connect WSNs with Internet. To this end, IETF has developed suite protocols open standards for accessing applications...
Fifth generation (5G) wireless networks face various challenges in order to support large-scale heterogeneous traffic and users, therefore new modulation multiple access (MA) schemes are being developed meet the changing demands. As this research space is ever increasing, it becomes more important analyze approaches, therefore, paper we present a comprehensive overview of most promising MA for 5G networks. Unlike other surreys networks, focuses on multiplexing techniques, including...
The increasing pervasiveness of wireless sensor networks (WSNs) in diverse application domains including critical infrastructure systems, sets an extremely high security bar the design WSN systems to exploit their full benefits, trust while avoiding loss. Nevertheless, a combination resource restrictions and physical exposure devices inevitably cause such be vulnerable threats, both external internal. While several researchers have provided set open problems challenges privacy, there is gap...
High-dimensional crowdsourced data collected from numerous users produces rich knowledge about our society; however, it also brings unprecedented privacy threats to the participants. Local differential (LDP), a variant of privacy, is recently proposed as state-of-the-art notion. Unfortunately, achieving LDP on high-dimensional publication raises great challenges in terms both computational efficiency and utility. To this end, based expectation maximization (EM) algorithm Lasso regression, we...
In this paper, the potential benefits of applying non-orthogonal multiple access (NOMA) technique in K -tier hybrid heterogeneous networks (HetNets) is explored. A promising new transmission framework proposed, which NOMA adopted small cells and massive multiple-input multiple-output (MIMO) employed macro cells. For maximizing biased average received power for mobile users, a MIMO based user association scheme developed. To evaluate performance proposed framework, we first derive analytical...
Reliable real-time sensing plays a vital role in ensuring the reliability and safety of industrial cyber-physical systems (CPSs) such as wireless sensor actuator networks. For many reasons, harsh environments, fault-prone sensors, or malicious attacks, readings may be abnormal faulty. This could lead to serious system performance degradation even catastrophic failure. Current anomaly detection approaches are either centralized complicated restricted due strict assumptions, which not suitable...
The growing of Internet Things (IoT) devices has resulted in a number urban-scale deployments IoT multinetworks, where heterogeneous wireless communication solutions coexist. Managing the multinetworks for mobile access is key challenge. Software-defined networking (SDN) emerging as promising paradigm quick configuration network devices, but its application with frequent not well studied. In this paper we present UbiFlow, first software-defined system ubiquitous flow control and mobility...
We present ADDSEN middleware as a holistic solution for Adaptive Data processing and dissemination Drone swarms in urban SENsing. To efficiently process sensed data the middleware, we have proposed cyber-physical sensing framework using partially ordered knowledge sharing distributed management drone swarms. A reinforcement learning strategy is implemented framework. uses online techniques to adaptively balance broadcast rate loss periodically. The learned adapted by executing state...
Smart grids are essentially electric that use information and communication technology to provide reliable, efficient electricity transmission distribution. Security trust of paramount importance. Among various emerging security issues, FDI attacks one the most substantial ones, which can significantly increase cost energy distribution process. However, current research focuses on countermeasures FDIs for traditional power rather smart grid infrastructures. We propose an real-time scheme...
The emergence of the water–energy–food (WEF) nexus has resulted in changes to way we perceive our natural resources. Stressors such as climate change and population growth have highlighted fragility WEF systems, necessitating integrated solutions across multiple scales. While a number frameworks analytical tools been developed since 2011, comprehensive tool remains elusive, hindered part by limited data understanding interdependencies connections systems. To achieve this, community...
RPL, an IPv6 routing protocol for Low power Lossy Networks (LLNs), is considered to be the de facto standard Internet of Things (IoT). However, more and experimental results demonstrate that RPL performs poorly when it comes throughput adaptability network dynamics. This significantly limits application in many practical IoT scenarios, such as LLN with high-speed sensor data streams mobile sensing devices. To address this issue, we develop BRPL, extension providing a approach allows users...
Recent research has demonstrated searchable blockchains that not only provide reliable search over encrypted distributed storage systems but ensure privacy is preserved. Yet, current solutions focus on single-keyword data the blockchain. To extend such approaches to multi-keyword scenarios, they essentially perform a for multiple times and take intersection of results. However, extensions suffer from efficiency issues. In particular, service peers, which process requests, will be aware...
Wireless Sensor Networks with Mobile Sinks (WSN-MSs) are considered a viable alternative to the heavy cost of deployment traditional wireless sensing infrastructures at scale. However, current state-of-the-art approaches perform poorly in practice due their requirement mobility prediction and specific assumptions on network topology. In this paper, we focus lowdelay high-throughput opportunistic data collection WSN-MSs general topologies arbitrary numbers mobile sinks. We first propose novel...
LPWA networks are attracting extensive attention because of their ability to offer low-cost and massive connectivity IoT devices distributed over wide geographical areas. This article provides a brief overview the existing technologies useful insights aid large-scale deployment networks. In particular, we first review currently competing candidates networks, such as NB-IoT LoRa, in terms technical fundamentals potential. Then present two implementation examples By analyzing field-test...
In this paper, efficient resource allocation for the uplink transmission of wireless powered IoT networks is investigated. We adopt LoRa technology as an example in network, but work still suitable other communication technologies. Allocating limited resources, like spectrum and energy among a massive number users faces critical challenges. consider grouping into available channels first then investigate power grouped same channel to improve network throughput. Specifically, user problem...
We propose an adaptive middleware design for context-aware applications that abstracts the from sensors provide context. Further, we use application-specific utility functions to choose, given multiple alternatives providing a specific context, one alternative at any time provides context all applications, whilst maximising applications' total satisfaction with quality of chosen provider. Our also implements autonomic properties, such as self-configuration and resilience failures, in...
The assessment of node-to-node similarities based on graph topology arises in a myriad applications, e.g. , web search. SimRank is notable measure this type, with the intuition that "two nodes are similar if their in-neighbors similar". While most existing work retrieving only considers all-pairs s (*, *) and single-source j ) (scores between every node query ), there appealing applications for partial-pairs SimRank, similarity join. Given two subsets A B graph, aims to retrieve { ( b )} ∀ ε...
Smart water distribution networks are a good example of large scale Cyber-Physical System that requires monitoring for precise data analysis and network control. Due to the critical nature distribution, an extensive simulation decision making control algorithms required before their deployment. Although some aspects behaviour can be simulated in software such as hydraulic responses valve changes, simulators unable include dynamic events leakages or bursts physical models. Furthermore, due...
The growth of Internet Things (IoT) devices with multiple radio interfaces has resulted in a number urban-scale deployments IoT multinetworks, where heterogeneous wireless communication solutions coexist (e.g., WiFi, Bluetooth, Cellular). Managing the multinetworks for seamless access and handover, especially mobile environments, is key challenge. Software-defined networking (SDN) emerging as promising paradigm quick easy configuration network devices, but its application requiring frequent...
In this paper, we investigate the resource efficiency of uplink transmission for low-power wide-area (LPWA) networks. LoRa is adopted as an example network focus, however work can be easily generalized to other radios. We first formulate allocation in LPWA networks a joint optimization problem channel assignment and power allocation, with guaranteeing throughput fairness among users limited spectrum resources, especially case large number connected devices Specifically, many-to-one matching...
Low Power Wide Area (LPWA) communication technologies have the potential to provide a step change in enablement of cost-effective and energy efficient Internet Things (IoT) applications. With an increase number offerings available real performance these emerging remain unclear. That is, each technology comes with its own advantages limitations; yet there is lack comparative studies that examine their trade-offs based on empirical evidence. This poses major challenge IoT solution architects...