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This paper presents an energy-efficient solution to overcome packet loss in Wireless Sensor Networks (WSNs) by adding seed-based Random Linear Network Coding to MQTT for Sensor Networks (MQTT-SN). Whereas most sensors integrated in common WSN devices consume little energy, using the radio is costly. To increase battery lifetime, devices try to minimize their radio uptime, while still satisfy timeliness...
For reliable control of the cardiovascular, respiratory, musculoskeletal systems of the human body must be continuously recorded electro-cardio signal for a long time. Detected and quickly transferred over the wireless channel the most informative pieces of daily electro-cardio signal will allow duty cardiologists for react and provide the necessary medical care to remote cardiac patients. The sequences...
This summary presents a proof of concept for a passive chipless wireless sensor for temperature range detection. The temperature range information is encoded in a binary format using dual C-like scatterers operating at two different frequencies. The sensing principle is based on resonance shift of the Radar Cross Section (RCS) peaks of the backscattered signal from the two adjacent scatterers. This...
This work was developed in the context of European funded Project SelSus. Industrial clouds are heavily sensor based and Cloud Manufacturing Service frameworks are mostly grounded in the adoption of Internet of Things and Wireless Sensor Networks technologies. The SelSus framework combines both an Industrial Sensor Cloud and a Cyber Physical Production System. The Industrial Sensor Cloud supports...
Energy efficiency and reliability are a pair of the most important factors in wireless sensor networks (WSNs). Recent research results have demonstrated that the previously suggested scheme of the joint network-coding-compressive-sensing can greatly improve the energy efficiency and the communication reliability of WSNs. In this paper, we propose a practical scheme, Non-Binary Joint Network-Coding...
Sparse coding has achieved a great success in various image processing studies. However, there is not any benchmark to measure the sparsity of image patch/group because sparse discriminant conditions cannot keep unchanged. This paper analyzes the sparsity of group based on the strategy of the rank minimization. Firstly, an adaptive dictionary for each group is designed. Then, we prove that group-based...
We develop a random binning scheme for strong coordination in a network of two nodes separated by a noisy channel, in which the input and output signals have to be coordinated with the source and its reconstruction. In the case of non-causal encoding and decoding, we propose a joint source-channel coding scheme and develop inner and outer bounds for the strong coordination region. While the set of...
Wireless sensor networks (WSNs) have significant limitations in available bandwidth and energy. The limited bandwidth in sensor networks can cause higher message delivery latency. In this demo, we demonstrate working of novel Zorder based data compression schemes (Z- compression) to reduce energy and save bandwidth without increasing the message delivery latency using a TelosB motes based sensor network...
Most sensor networks employ dynamic routing protocols so that the routing topology can be dynamically optimized with environmental changes. The routing behaviors can be quite complex with increasing network scale and environmental dynamics. Knowledge on the routing path of each packet is certainly a great help in understanding the complex routing behaviors, allowing effective performance diagnosis...
Intravehicular wireless systems are attracting a lot of research interest during the last years. A future scenario where intravehicular wired systems will be replaced by wireless systems will allow to reduce cabling weight and increase the flexibility. But one of the main requirements of wireless systems is to maintain the same reliability level as the wired ones. A system based on LDM (Layered Division...
For complex environment in the mine, a wireless sensor node location mechanism based on a combination of RSSI ranging and genetic simulated annealing algorithm is proposed. Wireless signal transmission loss model in the mine was researched and used for RSSI ranging. Location problem is as an optimization problem to locate by improved genetic simulated annealing algorithm. Simulation results show that...
Cyber-physical systems connect the physical world and the information world by sensors and actuators. These sensors are usually small embedded systems which have many limitations on wireless communication, computing and storage. This paper proposes a lightweight coding method for secure and reliable transmission over a wireless communication links in cyber-physical systems. The reliability of transmission...
Several atypical hierarchical routing protocols have been proposed among which grid-based routing protocols are an efficient way of disseminating data towards a mobile sink. The network is partitioned into a virtual equal-sized grids. The proposed protocol, Mode-Switched Grid-based Routing (MSGR) for Wireless Sensor Networks selects one node per grid as the Grid Head. The routing path to the sink...
There are two main stages in the proposed system: Firstly includes detection and determining the number of evil paths depending on encoding an input messages by the source node by using the system of linear equations and sent these coded messages to the sink mode along the disjointed-multi-paths of the network. The sink node will construct number of equations from the received coded messages. It can...
How to extend network's lifetime is one of the most important problem in the Wireless Sensor Networks (WSNs). Network's Lifetime is directly dependent on node inside the area, especially the node nearly the sink, these nodes consumes its power very quickly to support large data stream from outside to the sink node, they takes on the heavy traffic and formed the bottleneck zone. To solve this problem,...
Due to the special distribution of wireless sensor network nodes, the energy consumption of the nodes has strict requirements. In this paper, we propose an energy optimization scheme for wireless sensor networks based on modulation optimization. We analyze the relationship among energy consumption, modulation, the distance between nodes and modulation parameters. Finally, the simulation results show...
The latest research progress of the theory of compressed sensing (CS) over graphs makes it possible that the advantage of CS can be utilized by data ferries to gather data in WSNs. In this paper, we leverage the non-uniform distribution of the sensing data field to significantly reduce the required number of data ferries, yet ensuring the recovered data quality. Specially, we propose an intelligent...
The node replica attack is known to be dangerous to wireless sensor networks (WSNs) because it enables the adversary to extend the damage throughout the network with very low cost. To stop such attack, we propose a similarity estimation based scheme with group deployment knowledge. Compared with prior works, our proposal provides extra functionality that prevent replica from generating false location...
Fountain codes are a type of erasure codes which are characterized by their global acknowledgement and used as a solution to reduce the use of feedback channel as well as the number of transmissions and then minimize the energy consumption. With the multi-hop transmission, fountain codes raise the problem of overflow leading to a waste of energy, the most critical issue and the big challenge in the...
In this work the design of low power infrared transceiver ASIC with AMS350nm technology is presented. There are two different types of transceiver designs that have been developed. The first design is based on IrDA 9600 baud serial infrared (SIR) standard physical signal layer that uses split-phase Manchester coding technique and the second design is using uni-polar return zero coding (RZ) technique...
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