The Visual Display of Quantitative Information

Towards sustainable smart cities: A review of trends, architectures, components, and open challenges in smart cities

Internet of Things security

The surge in global population is compelling a shift toward smart agriculture practices. This coupled with the diminishing natural resources, limited availability of arable land, increase in unpredictable weather conditions makes food security a major concern for most countries. As a result, the use of Internet of Things (IoT) and data analytics (DA) are employed to enhance the operational efficiency and productivity in the agriculture sector. There is a paradigm shift from use of wireless sensor network (WSN) as a major driver of smart agriculture to the use of IoT and DA. The IoT integrates several existing technologies, such as WSN, radio frequency identification, cloud computing, middleware systems, and end-user applications. In this paper, several benefits and challenges of IoT have been identified. We present the IoT ecosystem and how the combination of IoT and DA is enabling smart agriculture. Furthermore, we provide future trends and opportunities which are categorized into technological innovations, application scenarios, business, and marketability.

An Overview of Internet of Things (IoT) and Data Analytics in Agriculture: Benefits and Challenges

Internet of Things (IoT) technology has attracted much attention in recent years for its potential to alleviate the strain on healthcare systems caused by an aging population and a rise in chronic illness. Standardization is a key issue limiting progress in this area, and thus this paper proposes a standard model for application in future IoT healthcare systems. This survey paper then presents the state-of-the-art research relating to each area of the model, evaluating their strengths, weaknesses, and overall suitability for a wearable IoT healthcare system. Challenges that healthcare IoT faces including security, privacy, wearability, and low-power operation are presented, and recommendations are made for future research directions.

Internet of Things for Smart Healthcare: Technologies, Challenges, and Opportunities

Advances in the development and increased availability of smart devices ranging from small sensors to complex cloud infrastructures as well as various networking technologies and communication protocols have supported the rapid expansion of Internet of Things deployments. The Universal Plug and Play (UPnP) protocol has been widely accepted and used in the IoT domain to support interactions among heterogeneous IoT devices, in part due to zero configuration implementation which makes it feasible for use in large-scale networks. The popularity and ubiquity of UPnP to support IoT systems necessitate an exploration of security risks associated with the use of the protocol for IoT deployments. In this work, we analyze security vulnerabilities of UPnP-based IoT systems and identify attack opportunities by the adversaries leveraging the vulnerabilities. Finally, we propose prospective solutions to secure UPnP-based IoT systems from adversarial operations.

An Overview of UPnP-based IoT Security: Threats, Vulnerabilities, and Prospective Solutions

Cloud computing has emerged as the primary and popular computing paradigm recently. Since cloud users move continuously, sustaining the required quality of service (QoS) in a cost effective manner is very challenging. For maintaining the required QoS for a moving user, the current cloud systems use some of the existing service replication or/and migration strategies. However, those policies become inefficient when a user frequently moves among multiple places. The primary reason for the failure of the existing migration strategies is they overlook several critical parameters associated with users' context during the service migration or replication. In this paper, we analyze the users' context thoroughly to determine their mobility and content usage patterns. We identify the key factors that affect the time and cost associated with the content storage and migration and design a model considering those factors. Based on our model CACROS (Context-Aware Cloud content Roaming Service), a cloud provider can perform the cost-benefit analysis between service migration and replication, and determine an efficient point for service hosting. We test our model with different potential scenarios using a real and simulated testbed and show that the model can provide a cost efficient solution for mobile cloud users while maintaining the desired level of quality of service.

https://www.computer.org/csdl/pds/api/csdl/proceedings/download-article/12OmNBt3qlB/pdf

CACROS: A Context-Aware Cloud Content Roaming Service

The widespread adoption of the Internet of Things (IoT) devices has increased its popularity and usage in diverse dimensions, including smart city, home, healthcare, and vehicles. The pervasiveness of the number of IoT devices that operate in low power and lossy network leads to performance issues. An excessive amount of IoT devices that operate with a fixed number of gateways reduce the quality of service (QoS) due to the increased latency of routing messages between the source and destination sensors. In this paper, we propose an IoT Gateway as a Service (IGaaS) that enables on-demand provisioning of IoT Gateways to maintain and improve QoS in an IoT system with a significant number of sensors. The IGaaS allows both the stationary and mobile gateways to be provisioned on-demand. The mobile devices, such as smartphones and drones, provide gateway services in exchange for incentives. The IGaaS supports both the upscale and downscale of IoT gateways depending on various metrics and requirements. The experimental results show that the IGaaS improves the QoS in terms of latency and power consumption.

/pdf/igaas-an-iot-gateway-as-a-service-for-on-demand-provisioning-4dzcmi2056.pdf

IGaaS: An IoT Gateway-as-a-Service for On-demand Provisioning of IoT Gateways

The ubiquitous nature of IoT devices has brought new and exciting applications in computing and communication paradigms. Due to its ability to enable auto-configurable communication between IoT devices, pervasive applications, and remote clients, the use of the Universal Plug and Play (UPnP) protocol is widespread. However, the advertisement and discovery mechanism of UPnP incurs significant overhead on resource-constrained IoT devices. In this paper, we propose a delegation-based approach that extends the UPnP protocol by offloading the service advertisement and discovery-related overhead from resource-limited IoT devices to the resource-rich neighbours of a UPnP-enabled IoT network. Our experimental evaluations demonstrate that the proposed scheme shows significant improvement over the basic UPnP, reducing energy consumption and network overhead.

Mahmud Hossain

Papers

An Overview of UPnP-based IoT Security: Threats, Vulnerabilities, and Prospective Solutions

CACROS: A Context-Aware Cloud Content Roaming Service

IGaaS: An IoT Gateway-as-a-Service for On-demand Provisioning of IoT Gateways

VSDM: A Virtual Service Device Management Scheme for UPnP-Based IoT Networks

An Overview of UPnP-based IoT Security: Threats, Vulnerabilities, and Prospective Solutions