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In this paper, we consider wireless information and power transfer in a cooperative multi-relay network (MRN) with relay selection. The off-grid relay terminals, which are randomly deployed within a certain cooperating area, help forward the source information to the destination following a decode-and-forward protocol. Adaptive power splitting is employed at each relay that attempts to decode the...
We have presented the real time database management in mobile computing system and supported by mobile computing system. The process of the system including various mobile system those are wireless network, the database management, disconnection.
Automated vehicles are designed to take over all or part of the driver's task, in order to safely and comfortably navigate through road traffic. Automated vehicles, however, are limited by the line-ofsight characteristics of the on-board sensors, e.g., radar, lidar, and camera. To overcome this limitation, wireless inter-vehicle communication can be employed, which not only provides information of...
A group of wireless devices with the ability to sense physical events (sensors) or/and to perform relatively complicated actions (actors), is referred to as Wireless Sensor and Actor Network (WSAN). In this work, we propose and implement two Fuzzy Based Actor Selection Systems (FBASS): FBASS1 and FBASS2 for actor selection in WSANs. The systems decide whether the actor will be selected for the required...
In order to further education in embedded discovery, Protomesh (prototype mesh) seeks to improve the field by providing a wireless solution for deploying Raspberry Pi workshops. Protomesh is a platform for starting up a quick ad-hoc batman-adv network. Batman-adv is an open source, kernel module native to Linux that provides a layer two mesh network routing protocol [2]. We leveraged this technology...
We determine the exact per-user multiplexing gain (MG) of Wyner’s soft-handoff network model when neighbouring transmitters and neighbouring receivers can communicate over rate-limited pipes. The per-user MG is determined, in function of the capacities of these conferencing links and of the maximum number of allowed conferencing rounds. The results reveal a certain duality between transmitter and...
In the wireless world, the devices face a unique challenge of energy scarcity. Unlike the wired systems, there is no continuous wired energy resource available to power the ongoing wireless communication. Instead, the entire system runs on wireless batteries. Taking a step further in this field, the concept of energy harvesting is introduced a while ago. This paper combines the concept of harvesting...
Indoor systems cannot obtain a precise estimate of the location, due to unstable signals. In this paper, we use realistic wireless data from the IEEE International Conference on Data Mining (ICDM) dataset and Azure Machine Learning Studio to perform Bagging (also called bootstrap aggregating). By using the machine leaning technique in the Azure Machine Learning Studio, we can obtain more than 69 percent...
The conventional positioning systems require the users to carry an electronic device, which helps in the localization process. Device-free Passive Localization (DfPL) techniques are used to position the users in a passive manner such that they do not engage in the process. A typical DfPL setup comprises of Wi-Fi Access Points (APs) that transmit periodic signals to Monitoring Points (MPs). Any intrusion...
This work introduces a novel security framework for wireless sensor networks (WSN) based on dynamic duty cycle, which allows nodes to detect their compromised neighbors based on unanticipated fluctuations in network traffic send rate over time. Our framework was assessed by its ability to detect advanced WSN threats (e.g., active, passive, or both attacks). One of the benefits of this framework is...
Live multimedia applications have experienced a dramatic growth due to the development of High Definition (HD) contents. Most of these streams are targeted at groups of people, who usually use Wi-Fi networks to access the platforms. In this context, a renewed interest in multicast applications has arisen, which usually suffer low data rates and reliability issues. Software Defined Networking (SDN)...
In this demonstration proposal, we present a prototype of a rapidly deployable and cost-effective railroad crossing early warning system integrated with the railway system. Specifically, the proposed demonstration deal with the safety applications based on dedicated short range communications (DSRC) protocol and devices using our different antennas. We will demonstrate the feasibility and advantages...
A wireless ad hoc network (WANET) is an effective approach to disseminating digital content without the need for infrastructure networks. It is not only useful in the absence of commodity connections such as cellular networks, but also useful for avoiding overloading those connections in crowded scenarios, an example of which is delivering movie clips throughout spectators in a stadium. However, experiments...
Aggregating common-path network flows (in the network interior) helps in improving the applications delivery performance. From the network edge perspective, the sender and receiver-ends of the respective applications need to have a typical one-to-one mapping. An aggregation framework in the network therefore needs an effective forking to maintain the one-to-one mapping of the flows. In this demo,...
In view of the exponential growth in the live multimedia content applications, multicast communications would imply a considerable traffic reduction compared to the unicast ones. However, given the absence of feedback information, packets are sent at the lowest rate, hence occupying the medium for long periods. Software Defined Networking (SDN) has changed the traditional network operations, therefore...
Each year, extreme weather causes nearly 100,000 mortalities, with most of these deaths being concentrated in third world and developing countries. Additionally, extreme weather events account for $485 billion in US economic damage, with this number expected to inflate as global warming increases the frequency and intensity of natural disasters. The purpose of this research is to develop an inexpensive...
In this paper, we proposed a WLAN system interference evaluation model based on received signal power and working channels which reflects the system interference in the current channel configuration. Based on this model, we proposed a simple and effective channel assignment scheme in which a set of channels with minimum system interference values were selected as the APs working channels. Simulation...
More and more study and application of ubiquitous healthcare system have been based on WBN (wireless body area networks). However, there are several important aspects that should be considered, such as the large amount sensing data, limited mobile terminal power supply, wireless bandwidth for video data flow. In ubiquitous healthcare networks, some personal health-care data are very important, such...
Mobile hosts in a Mobile Ad-Hoc Network are linked by wireless links without usual routing infrastructure and link fixed routers. Ad-Hoc Distance vector Routing (AODV) is among one of the prominently used routing protocol for packet transfer from source to destination. It relies on maintaining most recent information, for which, each ad-hoc node maintains hop count and sequence number field. Ad-hoc...
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