Security for Wireless Sensor Networks - Configuration Aid.- Low Power Wireless Buoy Platform for Environmental Monitoring.- A Detail Performance Evaluation of the Novel Mechanisms Ensuring Maximum Connectivity and Data Transmission between Nodes, Based on the Heuristics Under 5-Color Clustered Response Approach.- Inventory Management in the Packaged Gas Industry Using Wireless Sensor Networks.- An EM-IMM Method for Simultaneous Registration and Fusion of Multiple Radars and ESM Sensors.- Locatable, Sensor-Enabled Multistandard RFID Tags.- Optimal Sensor Network Configuration Based on Control Theory.- Optimal Local Map Registration for Wireless Sensor Network Localization Problems.- Wireless Sensor Network: Application to Vehicular Traffic.- Thermal Energy Harvesting for Wireless Sensor Nodes with Case Studies.- IEEE 1451.5 Standard-Based Wireless Sensor Networks.- Fuzzy Based Optimized Routing Protocol for Wireless Sensor Networks.- Energy Aware Sensor Group Scheduling to Minimise Estimated Error from Noisy Sensor Measurements.- Smart Home for Elderly Using Optimized Number of Wireless Sensors.- Estimation of Packet Error Rate at Wireless Link of VANET.

/pdf/advances-in-wireless-sensors-and-sensor-networks-52e9wo641z.pdf

Advances in wireless sensors and sensor networks

Vehicle platooning, which is formed by a group of vehicles traveling in close proximity to one another, nose-to-tail, at highway speeds, has received considerable attention in recent years. However, though it brings many opportunities in self-driving, the security of vehicle platooning is still challenging. In this paper, to secure vehicle platooning, particularly to secure communication and efficient key updating for vehicles in a platoon, we first present the notion of ternary join exit tree. A ternary join exit tree consists of main tree, join tree, and exit tree. The users join in the join tree and leave from exit tree. Then, we propose a new dynamic ternary join-exit tree-based dynamic key management scheme, called TJET, for vehicle platooning, which is characterized by providing efficient key updating for not only vehicle joining and leaving, but also platoon merging and splitting. Specifically, based on the structure of ternary join-exit tree, we devise concrete algorithms for vehicle joining, vehicle exiting, platoon merging, and splitting. Moreover, we also analyze the capacities and activation conditions of join tree and exit tree based on strict mathematical proofs. Detailed security analysis show that our proposed TJET holds desirable security properties including forward security, backward security, and resistance to key control. In addition, performance evaluations via extensive simulations demonstrate the efficiency of TJET.

/pdf/tjet-ternary-join-exit-tree-based-dynamic-key-management-for-22ggwrb665.pdf

TJET: Ternary Join-Exit-Tree Based Dynamic Key Management for Vehicle Platooning

Due to the lack of proper act and legislation on the Halal enforcement, the Halal logo is often being exploited by some manufacturers who simply put the Halal label on their products without using the genuine one. This unlawful action creates confusion to consumers and causing them to question the validity of some of the products that are claimed to be halal. To overcome the problem, this paper presents a conceptual design of Halal logo detector that can be used to validate the Halal logo status printed on products. Two approaches are proposed in this conceptual design; the two-dimensional (2D) barcode and the ultraviolet (UV) hidden image of hologram approach. Two kind of 2D barcode such as PDF 417 and QR code are chosen based on their capability in data storage, high security, cost effective and applicability of the designed system. The physical layout of the detector is also designed so that it can be conveniently installed and used by consumer in the supermarket.

A conceptual design of genuine Halal logo detector

Annually thousands of people lose their lives due to traffic accidents. Putting into effect some policies in wealthy countries has significantly reduced traffic accidents together with problems of injury. However, this problem requires special attention in middle-income countries. VANETs, considered among ad hoc networks, in which unfixed vehicles communicate with each other. Two type of different communications have been used in VANETs, Peer-to-Peer (P2P) communications and multi-hop communications. Because of no infrastructure communication between vehicles, Inter-Vehicle Communications or Vehicle-to-Vehicle communications (V2V) are regarded as VANETS. VANETs have different use cases. Its applications are many ranging from cooperative traffic surveillance, route optimization, prevention of collision, forecasting the weather, and information broadcasting such as advertising commodity, goods, and online services. Mentioned applications diversity results in branding these networks as Intelligent Transportation System (ITS). VANETs can create alert systems in a certain distance for awareness of drivers about road and traffic conditions, to help drivers make better decisions and modify their driving habits to reduce these hazards and accidents. In this paper, we implement and evaluate the impact of traffic congestion caused by the number of cars on the detection of the missing packets.

Implementation and Evaluation of the Impact of Traffic Congestion on the Detection of the Missing Packets in VANET

Ensuring cooperative awareness by periodic message beaconing in vehicular environments is necessary to address pedestrian safety. However, high periodic basic safety message broadcasting in dense vehicular environments makes accessing the communication channel very competitive. Furthermore, high-frequency periodic broadcasting causes fast device energy dissipation which is a key issue for small computing devices used in wireless sensor and mobile communications. Therefore, in order to achieve reliable message dissemination for vehicle-to-pedestrian safety, energy loss minimization mechanisms for pedestrian mobile devices should be developed. This article proposes controlling the number of broadcasts by eliminating periodic safety message broadcasts from pedestrian nodes; these nodes only receive broadcasts from vehicles and then conditionally communicate with the vehicles when safety alerts are raised. When the pedestrian nodes do not receive messages from any vehicle for a specified period, pedestrian no...

A broadcast scheme for vehicle-to-pedestrian safety message dissemination:

Vehicular Ad hoc Network (VANET), as a subclass of mobile Ad hoc Networks (MANETs), is a promising approach for traffic security, mobile internet and V2V communication. While the packet loss estimation of VANET impacts routing protocol and transmission control algorithm, it turns out to be an important issue. In this paper, we propose an estimation algorithm for packet loss on VANET, RPLE (Real time packet loss estimation), which uses few probe packets and enhance the estimation accuracy than traditional methods for packet loss on wireless networks. Due to node motion and complex radio environment, packet loss estimation in VANET is a hard problem. However, packet loss estimation impacts routing protocol and transmission control algorithm of VANET, so it is an important issue. Based on mass on-road measurements, we have obtained the general statistical principals of packet loss rate (PLR) by distances on VANET, and we use Gaussian Mixture Model (GMM) to present PLR probability density. In that case, to get real-time PLR by sending a few probe packets, RPLE use maximum a posteriori probability method to estimate the current PLR based on the GMM of PLR probability density and the probing result. In real urban road scenario, the experiment results indicate that RPLE can get more accurate PLR estimation by few probe packets immediately.

Estimation of Packet Loss Rate at Wireless Link of VANET--RPLE

Node motion and complex radio environment make packet loss estimation in VANET difficult. However, packet loss estimation impacts routing protocol and transmission control algorithm of VANET, so it is an important issue. In this chapter, we measured packet error of VANET in real urban road, and analyzed the characteristics of packet error in VANET, described packet error by a packet-level Makov (PLM) model and used GMM (Gaussian Mixture Model) to present probability density of packet error, and then proposed two methods to estimate packet error, one is based on PLM model, and another is RPEE (real-time packet error estimation) which adopts GMM of probability density of packet error in VANET.

Estimation of Packet Error Rate at Wireless Link of VANET

Mobile 2D barcode combining the advantages of 2D barcode and mobile phones facilitates easy access to any information at any time in any place through any media. It has become a proactive engine to promote the rapid development of Mobile-Internet and industry innovation. This paper first introduces the basic concepts of 2D barcode and mobile 2D barcode and analyzes the business modes and merits of mobile 2D barcode. Then, the current status of the application of mobile 2D barcode in China is elaborated with respect to its industry chain, business models and implementation. Finally, the issues in need of resolution by the industry are addressed.

Application of Mobile 2D Barcode in China

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Estimation of Packet Loss Rate at Wireless Link of VANET--RPLE

Estimation of Packet Error Rate at Wireless Link of VANET

Application of Mobile 2D Barcode in China