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Pervasive networks formed spontaneously by wireless mobile devices capable of ad hoc communication make it possible to get services from these devices, and to compose them dynamically so as to provide people with new and more sophisticated application services. Discovering, invoking and composing services in such networks are challenging tasks, due to the numerous and unpredictable connectivity disruptions...
We investigate the problem of computing Completely Independent Spanning Trees (CIST) under a practical approach. We aim to show that despite CISTs are very challenging to exhibit in some networks, they present a real interest in ad-hoc networks and can be computed to enhance the network robustness. We propose an original ILP formulation for CISTs and we show through simulation results on representative...
A Flying Ad-hoc Network (FANET) is a wireless ad-hoc network specifically designed for the communication of Unmanned Aerial Vehicles (UAVs). Multicast routing is one of the vital aspects in wireless ad-hoc networks. Research works have been proposed to tackle the challenges in multicast routing in ad-hoc network environments with multi-hop communication. Nevertheless, the conventional multicast routing...
With the rapid development of wireless technology, free or cheap voice communication has become more and more popular. But this cost-effective voice technology based on Wi-Fi, Voice over WIFI (VoWIFI), is lacking mature management and control system, especially there is still no relevant research on its RAN performance. This paper has three mainly contributes: 1) in the indoor environment, we studied...
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...
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...
Mobile Ad-hoc Networks (MANETs) are one possible solution for infrastructure-independent communication in disaster scenarios. In such scenarios, communication is essential to coordinate first responders and safe lives. But mobile nodes in large areas face several challenges related to connectivity, resulting in frequent partitions and intermittent connections. Protocols as well as network access technologies...
Airborne Communication Networks have been discussed in civilian and military contexts. However, radio-frequency-based implementations of large-scale, ad hoc networks are hindered by regulatory restrictions and are fundamentally limited in capacity potentials. Therefore, free-space optical communication is an important technology option for such networks, due to the large available bandwidth and unregulated...
This paper, addresses to the issues arising during the application of ITS. In this context, a study is done about chain collision and Intelligent Traffic Light Systems (ITLS). There is a need for these methods because nowadays, traffic causes traffic congestions which remain for long that is generally due to the inefficient management of road congestions. Vehicular Ad hoc Networks (VANETs) is a rising...
A group of wireless devices with the ability to sense physical events (sensors) or to perform relatively complicated actions (actors), is referred to as Wireless Sensor and Actor Network (WSAN). In WSANs, sensors gather information about the physical events, while actors perform appropriate actions upon the environment, based on the sensed data shared by sensors. In order to provide effective sensing...
In Wireless Sensor-Actor Networks (WSANs), sensors probe the surroundings and forward their data to actors. Actors collaboratively respond to achieve predefined application mission. However, since the environment where WSANs are used is usually complex and harsh, actors cannot communicate with its neighbor actors occasionally due to the failure of an actor. Although the recent work provides a connection...
In the era of the Internet of Everything, users with handheld or wearable devices equipped with sensing capability have become producers as well as consumers of information and services. The more powerful these devices get, the more likely it is that they will generate and share content locally, through ad hoc opportunistic connectivity, leading to the presence of distributed information sources and...
The Named Data Networking (NDN) project is emerging as one of the most promising information-centric future Internet architectures. So far, NDN performance in wireless networks has been largely unexplored, especially for what concerns transport mechanisms, which are crucial to ensure reliable and efficient data delivery while accounting for available resources and network dynamics. In this paper,...
In this work, an energy efficient routing technique for WSNs is introduced. Here the routes between the source nodes and the base station are formed considering the energy levels of the intermediate nodes. These routes are refreshed dynamically to recover topology changes and to keep the energy level of the nodes close to each other. The technique introduced together with data aggregation are implemented...
In this work, the performance contribution of a relay node which cooperates to a source node during the transmission of data packets from source node to destination node is investigated. The effect of diversity gain to the performance of a network consists of correlated flat-faded Rayleigh channels. In this work, the re-transmissions of an individual packet are combined at destination node by employing...
This paper focus on multi hop mobility management in WSN ad hoc Network using DVS algorithm for minimum energy consumption. To improve cross layer collaborative in wireless sensor network as well as to improve processing capacity according requirement. In WSN, senor do not only process information at application layer but also synchronize their communication. Using our propose architecture containing...
Network-assisted device-to-device (D2D) communications allow two devices to communicate with each other directly using one bidirectional link. Exchange of signaling messages with the base station allows the establishment of D2D communications. The discovery of D2D pairs of devices is an essential part of D2D communications as it provides the base station with all the information necessary to evaluate...
With the rapid increase in deployment of smart meters across North America, utility resources such as water, gas and electricity consumption data is being collected at a much higher granular level. The huge amount of data is being used to make demand-response applications smarter. A large part of this deployment of smart utility networks and Advanced Metering Infrastructure (AMI) is being done using...
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