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New developments in mobile computing, wireless networking and social networking leverage opportunities to create location-based social networks (LBSNs) such as Foursquare, Gowalla, Facebook Place. Pointof-interest (POI) recommendation is a significant task in LBSNs, since it provides recommendations that respect personal preferences and capture social and environmental parameters. Moreover, employing...
The surveillance for data collection in wireless sensor networks (WSNs) setting is recognized as an important application of WSNs. Given an area of interest and a number of wireless sensors, typical problems to be addressed are covering the whole area while prolonging the network lifetime. It is explicitly observed that most existing studies focus on limited case in which the interested area is static...
In this paper, we consider typical wireless energy harvesting network, where a mobile charging vehicle is scheduled to serve a wireless sensor network. Specifically, for practical considerations such as deployment restrictions, the charging vehicle could not provide full efficiency energy supply to sensor nodes. For wireless energy harvesting, there is an inevitable tradeoff between the charging distance...
In Battery-Free Wireless Sensor Network (BF-WSN), nodes are powered by the energy harvested from ambience instead of batteries. The nodes may frequently suffer from insufficient energy so that they need to alternate normal operation (such as transmitting/receiving, etc.) with harvesting energy. This brings in extra packet delay for the nodes to deliver data to the sink(s). Therefore, delivering data...
In wireless multihop networks, a sequence of data messages are transmitted along a predetermined wireless multihop transmission route. Collisions among wireless transmission signals from the intermediate wireless nodes cause reduction of the end-to-end data message throughput. Hence, avoidance and/or reduction of collisions between 2-hop neighbor intermediate nodes due to the hidden terminal problem...
Wireless sensor network will become isolated in various associated segments because of the disappointment of some of its hubs, which is known as a “cut”. In this paper, authors acknowledge the issue of distinguishing cuts by the remaining hubs of a wireless sensor network. System proposes an estimation which grants every hub to identify at the time of accessibility to an extremely assigned hub has...
The emerging Internet of Things paradigm has triggered an explosion in ad-hoc applications that require connectivity among the nodes of wireless networks. However, the channel randomness and the random deployment of such networks could cause missed detections by isolated (i.e., unable to disseminate their messages) or inactive (i.e., without enough energy to transmit) nodes. Moreover, as the number...
In this paper, a communication load balanced dynamic topology management algorithm (CLB-AODV) is proposed to extend the wireless sensor network (WSN) lifetime via managing the participation in communication process among all nodes in the network. The idea is that, each time there is a failure in the network topology; the topology is adjusted only on-demand by choosing the best path according to paths...
Sensor networks are a branch of distributed ad hoc networks with a broad range of applications in surveillance and environment monitoring. In these networks, message exchanges are carried out in a multi-hop manner. Due to resource constraints, security professionals often use lightweight protocols, which do not provide adequate security. Even in the absence of constraints, designing a foolproof set...
In this paper, we propose a new protocol for sensors Frequency Shift Keying data transmission named RF-Tania protocol framework. This protocol focuses on Energy Efficiency and it is based on an existent open source protocol stack. Tania protocol framework includes a set of three protocols: The Sensors Data Transmission Protocol (Tania-SDTP), the Ad-Hoc On Demand Protocol (Tania-AHOD) and the Ad-hoc...
For fault-tolerant wireless ad-hoc networks, detection and notification of failure of intermediate wireless nodes are critical. Until now, various failure detection and notification methods for recovery such as timeout and watchdog have been proposed for stop failure and Byzantine failure restricted to different data message transmissions. In order to avoid desperate cases such that correctly working...
Wireless Sensor technology is one among the fast emerging technologies in the current scenario and it has wide range of application also which has small sensors with minimum communicational and computational power. Depending on the overhead of a node, the energy consumption varies with each other. This leads to the non-uniform distribution of the energy which in turn degrades the performance of the...
In this paper we present a stepwise formal development of the Optimised Link State Routing (OLSR) protocol in Event-B. OLSR is a proactive routing protocol which finds routes for different destinations in advance by exchanging control messages through the network. As a consequence, whenever a data packet is injected into the network can be delivered to a certain destination immediately. To achieve...
Industry 4.0 and industrial Internet of Things (iIoT) trends are pushing towards the transformation of factories to provide more flexible production systems through the use of wireless networks. Technologies enabling the “Factory-of-Things” (FoT) paradigm allow the safe deployment of wireless field devices in industrial plants thanks to their low-battery usage that makes the maintenance cycle quite...
This paper presents experimental verification of the performance of Group Centric Networking (GCN), a networking protocol developed for robust and scalable communications in lossy networks where users are localized to geographic areas, such as military tactical networks. Initial simulations in NS3 showed that GCN offers high delivery with low network overhead in the presence of high packet loss and...
Content centric network Is a kind of promising architecture of future internet. When implementing the CCN architecture in the energy-constraint wireless scenarios, there is a great challenge that is not considered in the original design of C-CN, that is, the energy saving problem. In this paper, we propose a lightweight energy-aware probabilistic forwarding strategy. Unlike the existing approaches...
This paper studies the impact of soil medium properties and network parameters on the topological connectivity of wireless sensor nodes communicating with each other via electromagnetic wave under the ground. The sensor nodes are deeply buried under the ground and randomly deployed in a square sensing area. Through two simulation scenarios, we investigate the path connectivity between two arbitrary...
This talk will provide a comprehensive review on the state-of-the-art research and technological developments on the architectures, protocols, and applications of the wirelesspowered communication networks. The talk will start with an introduction to the circuit design of wireless-powered communication devices. Then the talk will discuss about the architecture and protocol design issues for the wireless-powered...
Recent works on enhancing comfortability and convenience in vehicles reveal that information collections by various wireless sensor nodes have the potential due to their easiness of install and their small size. However, the conventional wireless network standards achieve insufficient reliability for practical in-vehicle communications. In this paper, through implementing 2.4GHz devices in an actual...
A real-time routing protocol was presented for wireless sensor networks, called SPEED based on stateless algorithms with minimal control overhead and feedback mechanism. By the novel combination of the feedback control and non-deterministic geographic forwarding end-to-end real-time communication is accomplished in the sensor networks with desired delivery speed. SPEED is a highly scalable and efficient...
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