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A Mobile Ad hoc Network (MANET) is a multihop wireless network in which the mobile nodes are dynamic in nature and has a limited bandwidth and minimum battery power. Due to this challenging environment the mobile nodes can be grouped into clusters to achieve better stability and scalability. Grouping the mobile nodes is called clustering, in which a leader node is elected to manage the entire network...
A Wireless Sensor and Actor Network (WSAN) is a group of wireless devices with the ability to sense physical events (sensors) or/and to perform relatively complicated actions (actors), based on the sensed data shared by sensors. This paper presents design and implementation of a simulation system based on Deep Q-Network (DQN) for mobile actor node control in WSANs. DQN is a deep neural network structure...
Mobile computing has many application domains. One important domain is that of mobile applications supporting collaborative work. In a collaborative work, the members of the team has to take decision or solve conflicts in project development (such as delays, changes in project schedule, taskasignment, etc.) and therefore members have to vote. Voting can be done in many ways, and in most works in the...
A Mobile Ad hoc Network (MANET) is a multi-hop wireless network in which the mobile nodes are dynamic in nature and has a limited bandwidth and minimum battery power. Due to this challenging environment the mobile nodes can be grouped into clusters to achieve better stability and scalability. Grouping the mobile nodes is called clustering, in which a leader node is elected to manage the entire network...
With the fast development of wireless technologies, Wireless Mesh Networks (WMNs) are becoming an important networking infrastructure due to their low cost and increased high speed wireless Internet connectivity. In this paper, we propose and implement a simulation system based on Particle Swarm Optimization (PSO). We use Size of Giant Component (SGC) and Number of Covered Mesh Clients (NCMC) as metrics...
With the accelerating development of aged tendency of population and rapid growth in the number of the disabled caused by diseases or injuries, the wheelchair with good performance for the aged and disabled is attracting the attention from the society. A wheelchair can provide the user with many benefits, such as maintaining mobility, continuing or broadening community and social activities, conserving...
The Delay/Disruption Tolerant Networking (DTN) aims to provide inter-operable communications with wide range of networks which have poor performance characteristics. In this paper, we propose a message suppression method for Vehicular DTN (VDTN) under highly stressed environment. The simulations for two scenarios are conducted considering obstacles (buildings), where Message Suppression with Road...
In this paper, we investigate the performance of advertisement delivery scenarios of Vehicular DTN (VDTN) under highly stressed environment. The simulations for two scenarios are conducted considering obstacles (buildings), where Road Side Units (RSUs) are present or not present. We consider 802.11p standard and send bundle messages in a realistic scenario of east side of Tokyo station area in Japan...
Mobile computing is increasingly becoming important to business and enterprises, especially SMEs (Small and Medium Size Enterprises). Mobile applications are seen not only as a means to offer enterprise services to clients online but also to improve their operational activity, increase their efficiency and reduce costs. In this paper we take the business perspective by a use case analysis on the mobile...
With the ever increasing number of mobile devices and their computational capacity in terms of processing, storage and software, the use of smart devices is being employed each time more not only for basic use and entertainment and social networking but also for work. Besides this added value to use smart devices for work at individual level, the interest is of course to explore the use of such devices...
P2P technologies have been considered as one of the most disruptive Internet technologies in achieving fully decentralized and efficient communication in distributed systems. Indeed, the nature of the direct communication among peers in the system, being these machines or people, makes possible to overcome the limitations of the flat communications through email, newsgroups and other forum-based communication...
There is an increasing interest in Mobile Ad hoc Networks (MANETs) for their potential use in several fields such as collaborative computing, tactical networks and multimedia communications. Thus, MANETs need to support multiple communication flows in the network, while guaranteeing a good performance. In this paper, we analyze the performance of a MANET by simulations, considering multiple flows...
This special issue is devoted to recent research findings in the field of Cyber Physical Systems. The special issue follows “The IEEE 26th International Conference on Advanced Information Networking and Applications (AINA-2012)”, held at the Fukuoka Institute of Technology, Fukuoka, Japan, March 26–29, 2012.
A Mobile Ad hoc Network (MANET) is a set of mobile wireless devices, which communicate by forwarding packets for each other. These autonomous devices act as routers and as end nodes as well. The communication from one node to another can happen in many routes with different number of hops. Because of mobility these routes change dynamically. Recent application of MANETs have strong Quality of Service...
P2P systems have shown useful to many types of distributed systems due to their features of efficient direct communication among peers. Although initially motivated by the need for efficient file sharing among large amount of peers, P2P techniques have found wide applicability to many domains within large scale distributed systems such as solving complex problems from science and engineering, data...
In this work, we evaluate the performance of DYMO routing protocol in different VANET scenarios. We investigate the effect of density and speed in the performance of communication between nodes using different node densities and speeds for the same simulation area. As evaluation metric, we use Packet Delivery Ratio (PDR). The simulation results have shown that with the increasing of the nodes density...
In this paper, we evaluate the performance of Ad hoc On-Demand Distance Vector (AODV) routing protocol for single and multiple traffic in MANETs. We investigate and compare the packet delivery fraction (PDF) and throughput. As network simulator, we used ns-3 and we considered random waypoint mobility model for different number of nodes and different maximum speed by sending single and multiple traffic...
Mobile ad-hoc networks (MANETs) are autonomous distributed networks, where mobile nodes communicate with each other using wireless links. Since the communication is done by wireless links, it is difficult to grasp the network situation. It becomes even more difficult when the number of nodes is increased. In this paper, we propose a visualization system for MANETs. The system can mainly visualize...
Mobility and the absence of any fixed infrastructure make wireless Mobile Ad-hoc Networks (MANETs) very attractive for time-critical applications. In this paper, we deal with TCP congestion control for Multiple traffic in MANETs. For network simulations, we used ns-3 network simulator considering Ad hoc On-Demand Distance Vector (AODV) and Optimized Link State Routing (OLSR) routing protocols. We...
Vehicular Ad-hoc Networks (VANETs) represent a rapidly emerging, particularly challenging class of Mobile Ad-hoc Networks (MANETs). VANETs are expected to be massively deployed in upcoming vehicles, because their use can improve the safety of driving and makes new forms of inter-vehicle communications possible as well. Because they are characterized of high mobility and dynamic topology change, congestion...
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