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"Denko, Mieso K"
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Mobile Opportunistic Networks
From fundamentals to advanced concepts, this book provides comprehensive technical coverage of this rapidly emerging communications technology. The first section focuses on modeling, networking architecture, and routing problems. The second section examines opportunistic networking technologies and applications. Supplying detailed discussions of key research challenges and open issues, this comprehensive resource provides a clear understanding of industrial and professional standards, communication architectures, network algorithms and protocols, emerging applications, and the latest experimental studies-including simulation tools and implementation test beds.
eBook
Mobile Opportunistic Networks
From fundamentals to advanced concepts, this book provides comprehensive technical coverage of this rapidly emerging communications technology.
eBook
Modelling the energy cost of a fully operational wireless sensor network
Several applications have been proposed for wireless sensor networks, including habitat monitoring, structural health monitoring, pipeline monitoring, precision agriculture, active volcano monitoring, and many more. The energy consumption of these applications is a critical feasibility metric that defines the scope and usefulness of wireless sensor networks. This paper provides a comprehensive energy model for a fully functional wireless sensor network. While the model uses toxic gas detection in oil refineries as an example application, it can easily be generalized. The model provides a sufficient insight about the energy demand of the existing or proposed communication protocols.
Journal Article
Software agent-based directed diffusion in wireless sensor network
In an environment where node density is massive, placement is heterogeneous and redundant sensory traffic is produced; limited network resources such as bandwidth and energy are hastily consumed by individual sensor nodes. Equipped with only a limited battery power supply, this minimizes the lifetime of these sensor nodes. At the network layer, many researchers have tackled this issue by proposing several energy efficient routing schemes. All these schemes tend to save energy by elevating redundant data traffic via in-network processing and choosing empirically good and shortest routing paths for transfer of sensory data to a central location (sink) for further, application-specific processing. Seldom has an attempt been made to reduce network traffic by moving the application-specific code to the source nodes. We unmitigated our efforts to augment the node lifetime within a sensor network by introducing mobile agents. These mobile agents can be used to greatly reduce communication costs, especially over low bandwidth links, by moving the processing function to the data rather than bringing the data to a central processor. Toward this end, we propose an agent-based directed diffusion approach to increase sensor node efficiency and we present the experimental results.
Journal Article
Pervasive Computing and Networking
This book presents state-of-the-art research on architectures, algorithms, protocols and applications in pervasive computing and networks With the widespread availability of wireless and mobile networking technologies and the expected convergence of ubiquitous computing with these emerging technologies in the near future, pervasive computing and networking research and applications are among the hot topics on the agenda of researchers working on the next generation of mobile communications and networks. This book provides a comprehensive guide to selected topics, both ongoing and emerging, in pervasive computing and networking. It contains contributions from high profile researchers and is edited by leading experts in this field. The main topics covered in the book include pervasive computing and systems, pervasive networking security, and pervasive networking and communication. Key Features: Discusses existing and emerging communications and computing models, design architectures, mobile and pervasive wireless applications, technology and research challenges in pervasive computing systems, networking and communications Provides detailed discussions of key research challenges and open research issues in the field of autonomic computing and networking Offers information on existing experimental studies including case studies, implementation test-beds in industry and academia Includes a set of PowerPoint slides for each chapter for instructors adopting it as a textbook Pervasive Computing and Networking will be an ideal reference for practitioners and researchers working in the areas of communication networking and pervasive computing and networking. It also serves as an excellent textbook for graduate and senior undergraduate courses in computer science, computer engineering, electrical engineering, software engineering, and information engineering and science.
eBook
Data ubiquity in autonomic wireless mesh networks
The ability to compute anywhere anytime is increasingly becoming a necessity. Wireless mesh networks (WMNs) have become a network of choice to provide broadband wireless Internet connectivity where wired infrastructure is uneconomical or impractical to deploy. Their support for inexpensive broadband Internet services has made them even more attractive and increased users’ demand. WMNs suffer from bottleneck effect at the Internet gateways due to the nature of the traffic pattern which is often towards or away from the Internet. Inspired by the autonomic networking paradigm, we proposed and evaluated a self-optimizing cooperative caching solution for autonomic wireless mesh networks. In cooperative caching, the cache replacement policy is paramount to the performance of the caching scheme used. We also proposed a cacheRescue scheme to salvage evicted valid data items. The simulation results show our proposed approach has better performance compared to other cooperative caching solutions.
Journal Article
Cooperative Data Caching and Prefetching in Wireless Ad Hoc Networks
This article proposes a cooperative data caching and prefetching scheme for Mobile Ad Hoc Networks (MANETs). In this scheme, multiple hosts cooperate in both prefetching and caching commonly used data. To reduce communication and computational overhead, we use a clustering architecture for the network organization. A weak consistency based on time to live value was used to maintain data consistency. A hybrid cache replacement policy that uses frequency of access and the reference time was employed. The effects of cache size, mobility, and prefetching threshold on the network performance were investigated in a discrete event simulation environment. The contribution of intra-cluster and inter-cluster information to overall data accessibility ratio was also investigated. The simulation results indicate that the proposed scheme improves both data accessibility and query delay at relatively lower prefetch thresholds, larger cache sizes, and moderate mobility.
Journal Article
Credit-Based Cooperation Enforcement Schemes Tailored to Opportunistic Networks
Contents
3.1 Introduction ...52
3.2 Opportunistic Networking Paradigm ...54
Book Chapter