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A distributed system is considered in an event-driven model composed of processes which are sequences of events. In this paper, we discuss a peer-to-peer (P2P) model of a topic-based publish/subscribe system (P2PPS model) where each peer process (peer) can both subscribe interesting topics and publish event messages. Since each peer can both publish and receive event messages, a peer may publish an...
A distributed system is considered in an eventdriven model where a state of a process transits on occurrence of an event. In this paper, we discuss a peer-to-peer topic-based publish/subscribe (P2PPS) model where each peer process (peer) can both subscribe and publish event messages. The subscriptions and publications are specified in terms of topics. Each event message e carries a vector e:TV = (tv1,...
In peer-to-peer (P2P) overlay networks, a group of multiple peers have to cooperate with each other. P2P systems are in nature scalable distributed systems, where there is no centralized coordinator. It is difficult for each peer to communicate with every other peer. An acquaintance peer of a peer is another peer with which the peer can directly communicate. Each peer has to obtain access and location...
In peer-to-peer (P2P) overlay networks, a group of multiple peers have to cooperate with each other. P2P systems are in nature scalable distributed systems, where there is no centralized coordinator. It is difficult, maybe impossible for each peer to communicate with every other peer in P2P overlay networks. An acquaintance peer of a peer is another peer with which the peer can directly communicate...
Wireless Mesh Networks (WMNs) distinguish for they low cost nature that makes them very attractive for providing wireless Internet connectivity. Such infrastructures can be used to deploy community networks, metropolitan area networks, municipal and corporative networks, and to support applications for urban areas, medical, transport and surveillance systems. The main issues in WMNs are achievement...
With the emergence of several new networking paradigms, optimization modeling and resolution turns out to be crucial to achieve optimized performance networks. One such networking paradigm that requires resolution of optimization problems is Wireless Mesh Networks (WMNs). In this paper, we deal with the effects of population size in GA for node placement problem in WMNs. We evaluate the performance...
Wireless Mesh Networks (WMNs) are currently attracting a lot of attention from wireless research and technology community due to their importance as means for providing cost-efficient broadband wireless connectivity. WMNs are based on mesh topology, in which every node is connected to one or more nodes, enabling thus the information transmission in more than one path. In this paper, we propose a system...
In this paper, we consider the peer-to-peer (P2P) model as a fully distributed, scalable system different from centralized coordinated systems like Cloud computing systems. A P2P system is composed of peer processes (peers). Here, applications are realized in activities and cooperation of a group of multiple peers. Since there is no centralized coordination in P2P systems, each peer has to obtain...
Achieving network connectivity and user coverage are among the most important objectives in Wireless Mesh Networks (WMNs). These objectives are formulated as optimization problems, which unfortunately cannot be solved to optimality due to their computational hardness nature. Heuristic methods have thus been considered for such optimization problem aiming to compute near optimal solutions in reasonable...
Information systems are being shifted to scalable architectures like Cloud and peer-to-peer (P2P) models. In this paper, we consider the P2P model as a fully distributed, scalable system different from centralized coordination systems in Cloud and Grid systems. A P2P system is composed of peer processes (peers). Here, applications are realized by activities and cooperation among multiple peers. In...
Information systems are being shifted to scalable architectures like Cloud and peer-to-peer (P2P) models. In this paper, we consider the P2P model as a fully distributed, scalable system different from centralized coordination systems in Cloud and Grid systems. A P2P system is composed of peer processes (peers). Here, applications are realized by activities and cooperations among multiple peers. In...
Wireless Mesh Networks (WMNs) have become an important networking infrastructure for providing cost efficient broadband wireless connectivity. WMNs are showing their applicability in deployment of medical, transport and surveillance applications in urban areas, metropolitan, neighboring communities and municipal area networks. In this paper, we deal with connectivity and coverage problem of WMN. Because...
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