Download or read book Design and Implementation of a Middleware for Ad hoc Multi hop Networking on Android written by Tiancheng Zhuang and published by . This book was released on 2012 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt: Currently on smartphones, short distance wireless communication between multiple phones mostly relies on existing network infrastructure, which has some limitations and is not flexible enough for many networking scenarios on smartphones. An ad hoc networking support on mobile devices operating system is desired by many mobile application developers. The aim of this thesis is to implement a Java based middleware on Android platform for multi-hop wireless ad-hoc networking over IEEE 802.11. The Ad-hoc On-demand Distance Vector (AODV) [2] is implemented for route discovery and the Reliable User Datagram Protocol (RUDP) [3] is applied for reliable user data delivery. The implementation is developed in the user space of Android system and requires few kernel modifications, so the system can be easily ported to different phone models. The application interface provided by our middleware service is simple and easy to use, so the implementation could be a good underlying ad-hoc networking support for developing Android applications. In this report, the design and implementation of the middleware is presented and experiments have been done to evaluate the routing and throughput performance of the implementation. To verify the correctness and effectiveness of our implementation, a demo file sharing application is developed on top of the middleware.
Download or read book Middleware for Network Eccentric and Mobile Applications written by Benoît Garbinato and published by Springer Science & Business Media. This book was released on 2009-02-07 with total page 463 pages. Available in PDF, EPUB and Kindle. Book excerpt: Middleware is a critical foundation needed to leverage the development of a wide range of mobile and ubiquitous applications. Intrinsic challenges when building such middleware require the combination of expertise from areas like distributed systems, networking, software engineering, and application development. This textbook provides a comprehensive introduction to the main fundamental problems, technologies, paradigms, and solutions of concern to developers of middleware for mobile environments. The contributions are grouped into four parts, on networking and programming issues, communication models, middleware issues, and application issues. Each chapter is structured as a self-contained tutorial, presenting an overview of a specific topic and the state-of-the-art solutions for the related problems. In addition, the book also includes an authoritative reference list. The material has been successfully used in several thematic training schools organized by the ESF MiNEMA (Middleware for Network Eccentric and Mobile Applications) program, and the book's organization and presentation is ideal for an advanced course on middleware.
Download or read book Middleware for Service Provision in Disconnected Mobile Ad Hoc Networks written by Roméo Said and published by . This book was released on 2011 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile ad hoc networks (MANETs) are spontaneously formed out of a number of mobile devices that communicate thanks to short-range wireless communication capabilities (e.g. Wi-Fi, Bluetooth). In many ad hoc networks deployed in real conditions, mobile nodes can exhibit highly dynamic behaviors of mobility and volatility. Because of their behavior, the devices in such network environments form so-called "islands" whose topology evolves continuously, rather than a single fully connected network. In this work, I focus on this class of MANETs which I refer to as disconnected MANETs. Network-wide communication in disconnected MANETs is still a challenge, namely because routing techniques designed for fully connected MANETs cannot be applied. The store-carry-and-forward approach provides a solution. With this approach, a message can be stored temporarily on a node, in order to be forwarded later when circumstances permit. Mobility then becomes an advantage as it facilitates message propagation. Messages are therefore forwarded from one network node to another when these nodes have the opportunity to meet. The service-oriented computing (SOC) model seems suited for ad hoc environments because it emphasizes the decoupled nature of its entities. Effectively, the decoupling between a client entity and a provider entity becomes essential in mobile environments with a fluctuating availability of providers, and where end-to-end communications are not guaranteed. Still, in existing service-oriented systems, providers are usually supposed to be always available (e.g. Web services). Providers are also assumed to be continuously reachable in wireless mobile environments, where local connected networks can be created using Wi-Fi hotspots, or by creating ad hoc networks using proximity one-hop or routed multi-hop protocols. Therefore, implementing distributed services for such networks still poses several challenges. Not only network-wide communication features must be provided, in spite of constant network fragmentation, but aspects such as the unpredictable reachability of the providers, or potential communication delays, must be taken into account at the service level. I propose a service platform for mobile nodes that supports the execution of service-oriented applications in disconnected MANETs. The service platform is implemented as a middleware composed of two layers: a communication layer, and a service layer. The communication layer provides mechanisms to decouple two service entities in terms of temporaneous interaction, synchronous behavior, and mutual knowledge. For this layer, I use an opportunistic and content-driven protocol (DoDWAN). The service layer provides mechanisms that decouple service providers and clients in terms of interoperability and service contract. For this layer, I propose solutions for service discovery and invocation. The elements that construct the discovery protocol are the description and advertisement at the provider side, and collection and selection at the client side. Description uses functional and non-functional service properties, as well as context properties. Discovery is based on a peer-to-peer architecture, where a client collects only interesting services. Content-based invocations are used to benefit from the service replication, where a multitude of providers can be offering the same business service. A client creates a functional request according to a discovered provider, then publishes its content-based request message to the attention of all compatible providers. After being satisfied, the client can initiate the healing of residual request and response messages from the network. The healing of response messages can also be initiated by the providers themselves according to the reliability of these responses. Using a prototype implementation of the middleware, I conducted simulations in a disconnected MANET environment. The performances of discovery is directly related to those of the underlying communication layer. Simulations confirm the benefits of content-based invocations in providing faster response times and better client satisfaction. Simulations also show the drastic reduction of redundant and leftover messages when applying the healing mechanisms.
Download or read book The Handbook of Mobile Middleware written by Paolo Bellavista and published by CRC Press. This book was released on 2016-04-19 with total page 1410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Device miniaturization, wireless computing, and mobile communication are driving ubiquitous, pervasive, and transparent computing. Supporting these rapidly evolving technologies requires middleware solutions that address connectivity-level, location-dependent, and context-dependent issues. The Handbook of Mobile Middleware is an exhaustive o
Download or read book Multi rate multi range Routing Protocol for Multi hop Mobile Ad Hoc Networks written by 陳仁暉 and published by . This book was released on 2002 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mobile Multi Hop Ad Hoc Networks written by Marco Conti and published by . This book was released on 2007-04-01 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Distributed Applications and Interoperable Systems written by Pascal Felber and published by Springer Science & Business Media. This book was released on 2011-05-26 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 11th IFIP WG 6.1 International Conference on Distributed Applications and Interoperable Systems, DAIS 2011, held in Reykjavik, Iceland, in June 2011 as one of the DisCoTec 2011 events. The 18 revised full papers and 6 short papers presented were carefully reviewed and selected from 55 submissions. The papers presented at DAIS 2011 address key challenges of modern distributed services and applications, including pervasiveness and peer-to-peer environments, and tackle issues related to adaptation, interoperability, availability and performance, as well as dependability and security.
Download or read book Design and Implementation of an Ad Hoc Network Utilizing the LIME II Tuple Space Framework on Mobile Devices written by Fahim Hussein Al Halabi and published by . This book was released on 2007 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of mobile computing devices, such as PDAs and cellular phones, is expand ing rapidly due to the fast improvement in their performance and reduction in co st. These devices provide the capability of accessing data anywhere at any time. Collaboration in the form of exchanging data or providing services is becoming increasingly important. This thesis is concerned with the design and implementat ion of a mobile ad-hoc network (MANET) that offers clustering, routing capabilit ies, and provides an agent-like architecture for running distributed and collabo rative applications on mobile devices in a wireless network using the tuple-spac e paradigm. The proposed framework emphasizes on collaboration between close mob ile units to provide information to distant nodes. It is implemented on real Poc ket PC devices, where several experiments were designed to test the performance of the system. Results were obtained to assess the engagement time, sending a me ssage within one tuple-space and across multiple spaces, analyzing the bandwidth, and analyzing the power consumption. The overall performance of the system was shown to be acceptable taking around 30-40 seconds for a device to engage in a network. The main concerns in the system were not related to bandwidth as much a s they were related to the power consumed by the devices especially that WiFi wa s used as the wireless technology.
Download or read book Design and Evaluation of AMPER written by Abdallah Wahib Jabbour and published by . This book was released on 2004 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: An ad hoc network is a group of mobile nodes that autonomously establish connectivity via multi-hop wireless links, without relying on any pre-configured network infrastructure. Traditional ad hoc routing protocols use a large number of routing packets to adapt to network changes, thereby reducing the amount of bandwidth left to carry data. Moreover, they route data packets along a single path from source to destination, which introduces considerable latency for recovery from a link failure along this path. Finally, they often use the minimum hop count as a basis for routing, which does not always guarantee a high throughput. This thesis presents AMPER (Ad hoc, Modular, Probabilistic, Enhanced Routing), an ad hoc routing protocol that minimizes the routing packet overhead, allows the use of alternate paths in the event of a link outage, and employs - without loss of generality - the expected number of transmissions to make forwarding decisions. Following the design of AMPER, ns-2 is used to simulate it, evaluate it and compare it to other ad hoc routing protocols.
Download or read book Implementation of a Middleware Architecture for Collaboration Among Mobile Devices in Opportunistic Networks written by Samaya Madhavan and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Opportunistic networks provide a viable platform for mobile communications due to the ubiquity of smart phones. These networks are characterized by lack of end to-end reliable connections. In such networks, establishing collaboration among nodes is a challenge. In this thesis, a middleware architecture for opportunistic communication and collaboration has been designed, developed, and implemented. The middleware architecture supports a protocol for efficiently exchanging information between mobile nodes during an opportunistic contact. Message formats for differentiating the various kinds of messages that will be transferred across the network are defined to maintain consistency and reduce redundancy. The architecture consists of several modules equipped with system software to differentiate, compute, update and merge information acquired at each participating node. The middleware has been developed with a view to support a variety of application services on opportunistic networks. In particular, the middleware performs service composition utilizing basic services available in different devices. A sample language translation application has been implemented involving several android devices to test service composition in an opportunistic network created among mobile devices. Finally experimental results are carried out to measure success rates of service composition. The experimental studies include results with the following scenarios: parallel service requests; varying service composition lengths; varying content size; varying number of nodes.
Download or read book Security Privacy and Reliability in Computer Communications and Networks written by Kewei Sha and published by River Publishers. This book was released on 2016-11-30 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt: Future communication networks aim to build an intelligent and efficient living environment by connecting a variety of heterogeneous networks to fulfill complicated tasks. These communication networks bring significant challenges in building secure and reliable communication networks to address the numerous threat and privacy concerns. New research technologies are essential to preserve privacy, prevent attacks, and achieve the requisite reliability. Security, Privacy and Reliability in Computer Communications and Networks studies and presents recent advances reflecting the state-of-the-art research achievements in novel cryptographic algorithm design, intrusion detection, privacy preserving techniques and reliable routing protocols. Technical topics discussed in the book include: Vulnerabilities and Intrusion DetectionCryptographic Algorithms and EvaluationPrivacy Reliable Routing Protocols This book is ideal for personnel in computer communication and networking industries as well as academic staff and collegial, master, Ph.D. students in computer science, computer engineering, cyber security, information insurance and telecommunication systems.
Download or read book Ad Hoc Mobile and Wireless Networks written by Maria Rita Palattella and published by Springer Nature. This book was released on 2019-09-25 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 18th International Conference on Ad-Hoc, Mobile, and Wireless Networks, ADHOC-NOW 2019, held in Luxembourg, in October 2019. The 37 full and 10 short papers presented were carefully reviewed and selected from 64 submissions. The papers provide an in-depth and stimulating view on the new frontiers in the field of mobile, ad hoc and wireless computing. They are organized in the following topical sections: IoT for emergency and disaster management; scheduling and synchronization in WSN; routing strategies for WSN; LPWANs and their integration with satellite; performance improvement of wireless and sensor networks; optimization schemes for increasing sensors lifetime; vehicular and UAV networks; body area networks, IoT security and standardization.
Download or read book Mobile Peer to Peer P2P written by Frank H. P. Fitzek and published by John Wiley & Sons. This book was released on 2009-06-15 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explore the potential of mobile P2P networks Mobile Peer to Peer (P2P): A Tutorial Guide discusses the potential of wireless communication among mobile devices forming mobile peer to peer networks. This book provides the basic programming skills required to set up wireless communication links between mobile devices, offering a guide to the development process of mobile peer to peer networks. Divided into three sections, Part I briefly introduces the basics of wireless technologies, mobile architectures, and communication protocols. Detailed descriptions of Bluetooth, IEEE802.11, and cellular communication link are given and applied to potential communication architectures. Part II focuses on programming for individual wireless technologies, and gives an understanding of the programming environment for individual wireless technologies. In addition, Part III provides advanced examples for mobile peer to peer networks. Introduces the basics of short-range/wireless technologies (such as Bluetooth and IEEE 802.11 Wireless LAN), mobile architectures, and communication protocols Explains the basic programming environment and the basic wireless communication technologies such as Bluetooth, WiFi (IEEE802.11), and cellular communication examples Discusses the advancements in meshed networks, mobile social networks and cooperative networks Provides detailed examples of mobile peer to peer communication including, social mobile networking, cooperative wireless networking, network coding, and mobile gaming Includes an accompanying website containing programming examples as source code Mobile Peer to Peer (P2P): A Tutorial Guideis an invaluable reference for advanced students on wireless/mobile communications courses, and researchers in various areas of mobile communications (mashups, social mobile networks, network coding, etc.) Undergraduate students and practitioners wishing to learn how to build mobile peer to peer networks will also find this book of interest.
Download or read book Energy Efficient Wireless Sensor Networks written by Vidushi Sharma and published by CRC Press. This book was released on 2017-07-28 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: The advances in low-power electronic devices integrated with wireless communication capabilities are one of recent areas of research in the field of Wireless Sensor Networks (WSNs). One of the major challenges in WSNs is uniform and least energy dissipation while increasing the lifetime of the network. This is the first book that introduces the energy efficient wireless sensor network techniques and protocols. The text covers the theoretical as well as the practical requirements to conduct and trigger new experiments and project ideas. The advanced techniques will help in industrial problem solving for energy-hungry wireless sensor network applications.
Download or read book Mobile Crowdsensing written by Cristian Borcea and published by CRC Press. This book was released on 2016-12-01 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mobile crowdsensing is a technology that allows large scale, cost-effective sensing of the physical world. In mobile crowdsensing, mobile personal devices such as smart phones or smart watches come equipped with a variety of sensors that can be leveraged to collect data related to environment, transportation, healthcare, safety and so on. This book presents the first extensive coverage of mobile crowdsensing, with examples and insights drawn from the authors’ extensive research on this topic as well as from the research and development of a growing community of researchers and practitioners working in this emerging field. Throughout the text, the authors provide the reader with various examples of crowdsensing applications and the building blocks to creating the necessary infrastructure, explore the related concepts of mobile sensing and crowdsourcing, and examine security and privacy issues introduced by mobile crowdsensing platforms. Provides a comprehensive description of mobile crowdsensing, a one-stop shop for all relevant issues pertaining to mobile crowdsensing, including motivation, applications, design and implementation, incentive mechanisms, and reliability and privacy. Describes the design and implementations of mobile crowdsensing platforms of great interest for the readers working in research and industry to quickly implement and test their systems. Identifies potential issues in building such mobile crowdsensing applications to ensure their usability in real life and presents future directions in mobile crowdsensing by emphasizing the open problems that have to be addressed.
Download or read book Handbook of Peer to Peer Networking written by Xuemin Shen and published by Springer. This book was released on 2010-03-03 with total page 1500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peer-to-peer networking is a disruptive technology for large scale distributed app- cations that has recently gained wide interest due to the successes of peer-to-peer (P2P) content sharing, media streaming, and telephony applications. There are a large range of other applications under development or being proposed. The - derlying architectures share features such as decentralizaton, sharing of end system resources, autonomy, virtualization, and self-organization. These features constitute the P2P paradigm. This handbook broadly addresses a large cross-section of c- rent research and state-of-the-art reports on the nature of this paradigm from a large number of experts in the ?eld. Several trends in information and network technology such as increased perf- mance and deployment of broadband networking, wireless networking, and mobile devices are synergistic with and reinforcing the capabilities of the P2P paradigm. There is general expectation in the technical community that P2P networking will continue to be an important tool for networked applications and impact the evo- tion of the Internet. A large amount of research activity has resulted in a relatively short time, and a growing community of researchers has developed. The Handbook of Peer-to-Peer Networking is dedicated to discussions on P2P networks and their applications. This is a comprehensive book on P2P computing.
Download or read book Fault Diagnosis written by Józef Korbicz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive work presents the status and likely development of fault diagnosis, an emerging discipline of modern control engineering. It covers fundamentals of model-based fault diagnosis in a wide context, providing a good introduction to the theoretical foundation and many basic approaches of fault detection.
