wireless mesh networks (88 Ergebnisse)

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1000grams, ISBN:9781848009080.

XIII, 219 p. Hardcover. Versand aus Deutschland / We dispatch from Germany via Air Mail. Einband bestoßen, daher Mängelexemplar gestempelt, sonst sehr guter Zustand. Imperfect copy due to slightly bumped cover, apart from this in very good condition. Stamped. Stamped. Signals and Communication Technology. Sprache: Englisch.

Paperback. Zustand: Brand New. 50 pages. 10.00x8.00x0.13 inches. In Stock.

Hardcover. Zustand: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less 2.65.

Taschenbuch. Zustand: Neu. Neuware -This dissertation examines concepts for wireless communication in large-scale, dense mesh networks, which can be used in future for plant control or building automation. It is shown that recent communication approaches for resource-constrained, IEEE 802.15.4 hardware do not scale well. This motivates the development of methodologies and protocols for reliable wireless communication in large-scale networks. This work covers the following topics: a ¿toolbox¿ for the development, programming, testing, and simulation of communication protocols for embedded systems; the decomposition of large networks into smaller subnets; concepts for scalable broadcasting and routing; the realization of selected network services such as emergency shutdowns and software updates. 192 pp. Englisch.

Zustand: Good. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, and may have sticker on cover, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.

Zustand: New. In.

Taschenbuch. Zustand: Neu. Neuware -Previous research done in wireless mesh networks, typically assumes omni-directional antennas are used, which has the implication of when two nodes are communicating, all nodes in the vicinity must stay silent. With the use of directional antennas, two nodes can communicate without affecting communications of other nodes in the vicinity. One of the primary objectives of this book is to exploit these opportunities that directional antennas can provide, and translate that into improvements of the performance of the mesh network.Books on Demand GmbH, Überseering 33, 22297 Hamburg 120 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -Was Sie in diesem Buch lernen:- Kanalzuweisungsschemata in drahtlosen Mesh-Netzwerken,- Lastausgleich und domänenübergreifende Mobilität für drahtlose Maschennetze,- Gradientenunterstütztes Routing für die Selbstorganisation der Topologie in dynamischen Mesh-Netzwerken,- Reinforcement Learning für QoS-garantiertes intelligentes Routing in drahtlosen Mesh-Netzwerken mit hoher Verkehrslast,- Evaluierung eines Mesh-Netzwerks auf Basis der LoRa-Technologie.Books on Demand GmbH, Überseering 33, 22297 Hamburg 76 pp. Deutsch.

Taschenbuch. Zustand: Neu. Neuware -Nowadays, the number of wireless users accessing the Internet is increasing day by day and each user wants to experience better performance. The IEEE 802.11 based wireless mesh network is the promising technology to provide wireless broadband Internet connectivity to the wireless users. In order to access the Internet through the pre-deployed WMN, the user has to associate with one of the mesh access points present in the WMN. The user performance majorly depends on the access point with which he/she is associated with and hence the access point selection problem is considered as critical in the context of WMN. This research work is focused on the problem of how to select the best access point that provides the best quality of service to the user.Books on Demand GmbH, Überseering 33, 22297 Hamburg 144 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -The design of efficient communication is a challenging issue for the success of the next generation WMNs to handle real-time and QoS sensitive applications and to satisfy both service providers and users. Unfortunately, the significant point in the literature is that today¿s cutting edge routing standards in WMNs are not perfectly equipped to cater to this task as these standards come with an inherent complexity and suffer from innate problems with respect to efficient communication based applications. Thus, the aim of this book is to enable the WMNs to handle efficiently real-time multimedia applications, in different operating conditions. This book should be especially useful to researcher and students in wireless networking.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 196 pp. Englisch.

Zustand: Gut. Zustand: Gut | Seiten: 228 | Sprache: Deutsch | Produktart: Bücher.

Taschenbuch. Zustand: Neu. Neuware -The unique characteristics of multi-radio wireless mesh networks, such as shared nature of wireless channels, use of multiple radio interfaces, stationary mesh routers, and user-to-gateway traffic pattern, make them different from wired-networks and other wireless networks. In particular, the effects of an unbalanced load can cause rapid gateway overloading, center overloading, or channel overloading. Since most traffic in a WMN is destined towards gateways, traffic concentration at gateway nodes creates a load imbalance at certain gateways, which in turn results in gateway overloading. The issue of center overloading refers to the nodes located near the geographical center of the network becoming overloaded in comparison to other nodes in the network. Finally, channel overloading in a multi-radio wireless mesh network refers to certain channels becoming overloaded compared to other channels. Thus, load balancing is necessary to avoid hot spots and to increase network utilization, as bad routes can exist for a long time in a static network and result in congestion and inefficient use of network resources.Books on Demand GmbH, Überseering 33, 22297 Hamburg 112 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -For the last decade or so wireless and mobile communication and its application have been enjoying tremendous attention because of their unique features. More recently, an increasing emphasis has been on the potential of infrastructure less wireless mobile networks that are easy, fast and in-expensive to set up, with the view that such technologies will enable numerous new applications in a wide range of areas. Wireless Mesh Networks (WMNs) is one of such network for providing wireless broadband internet connectivity over a selected geographic region. However, security in WMNs is still its primary stage as very little attention has been devoted so far to this topic by the research community. At the same time a lots of security based protocol has been proposed and developed for wireless ad hoc network. This thesis is concerned with the security issues of WMNs, analysis of security solutions for WMNs.Books on Demand GmbH, Überseering 33, 22297 Hamburg 116 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -Wireless Mesh Networks (WMNs) are believed to revolutionize wireless internet connectivity by economically extending broadband internet access over very large areas. In their default state, WMNs operate in the ISM band. Due to severe congestion in this unlicensed band, some of the constituent Mesh Routers (MRs) in a WMN may have over-congested operating conditions. Hence, it is desirable for such MRs to operate on a different band. There exist unused or white spaces in the spectrum used by licensed operators, who are referred to as Primary Users (PUs). Cognitive radio technology is one that can enable MRs in a WMN with poor channel conditions to shift operation to this licensed spectrum. This opportunistic sharing of the white spaces in the licensed spectrum results in higher spectral efficiency as well as reduced traffic volume in the ISM band. Additionally, spatial diversity using Smart Antennas is explored to achieve close to theoretical limits of spectral efficiency. Finally, we propose models that significantly improve the spectrum sensing mechanism of a CWMN, through analysis of historical data of PU behavior in accessing the spectrum.Books on Demand GmbH, Überseering 33, 22297 Hamburg 104 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -One of the most crucial challenges associated with wireless mesh networks (WMN) is to handle the network congestion. Congestion control in WMN poses a number of unique challenges due to the multi-hop wireless paths, the presence of hidden terminals, and the shared nature of the wireless medium. In a congested network, packets are dropped in the intermediate nodes very frequently. Furthermore, if the packets are dropped after traversing several hops, they unnecessarily consume the limited wireless resources, and in turn, results in a reduced effective network throughput. In this thesis, we work toward developing a congestion control mechanism which increases the network throughput and minimizes the turbulence in the networks. Our scheme includes the following mechanisms to achieves the desired goals. First, we propose an efficient congestion detection mechanism which accurately measures the buffer occupancy at the downstream node. Second, we develop a congestion control mechanism which appropriately sets the forwarding rate of a node based on the congestion status of the downstream node. Finally, we propose a scheduling mechanism to forward packets from multiple queues at MAC LayerBooks on Demand GmbH, Überseering 33, 22297 Hamburg 72 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -Wireless mesh networks(WMNS)are being developed actively and deployed widely for a variety of applications, such as public safety, environment monitoring, and citywide wireless Internet services. In fact, Wireless Mesh Network is a communications network made up of radio nodes organized in a mesh topology.Their promise of rapid deployability and reconfigurability makes them suitable for transient ondemand network deployment scenarios such as disaster recovery, homeland security, convention centers, hard-to-wire buildings and friendly terrains.WMNs are envisioned to provide various data and multimedia applications, such as Internet access, neighborhood gaming, Video-on-Demand(VoD)and emergency communications, to wireless users in the near future. In WMNs there are many reasons which will cause link failure during data transmission and these failures will decrease the performance of the network.There are some solutions for failure recovery in WMNs and these techniques are introduced and discussed. Older techniques have more limitations and to overcome those limitations, newer techniques are discussed on focusBooks on Demand GmbH, Überseering 33, 22297 Hamburg 92 pp. Englisch.

Taschenbuch. Zustand: Neu. Neuware -What you study in this book:- Channel Assignment Schemes in Wireless Mesh Networks,- Load-balancing and Inter-domain Mobility for Wireless Mesh Networks,- Gradient Assisted Routing for Topology Self-Organization in Dynamic Mesh Networks,- Reinforcement Learning for QoS-Guaranteed Intelligent Routing in Wireless Mesh Networks with Heavy Traffic Load,- Evaluation of A Mesh Network based on LoRa Technology.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 68 pp. Englisch.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Overview and Goals Wireless communication technologies are undergoing rapid advancements. The last few years have experienced a steep growth in research in the area of wireless mesh networks (WMNs). The attractiveness of WMNs, in general, is attributed to their characteristics such as the ability to dynamically self-organize and self-con gure, coupled with the ability to maintain mesh connectivity leading, in effect, to low set-up/installation costs, simpler maintenance tasks, and service coverage with high reliability and fault-tolerance. WMNs also support their integration with existing wireless networks such as cellular networks, WLANs, wireless- delity (Wi-Fi), and worldwide interoperability of microwave access (WiMAX). WMNs have found u- ful applications in a broad range of domains such as broadband home networking, commercial/business networking, and community networking - particularly attr- tive in offering broadband wireless access with low initial installation and set-up costs. Even though WMNs have emerged to be attractive and they hold great promises for our future, there are several challenges that need to be addressed. Some of the wellknownchallenges areattributedtoissuesrelatingtoscalability(signi cantdrop in throughput with the increase in the number of nodes), multicasting, offering qu- ity of service guarantees, energy ef ciency, and security. This handbook attempts to provide a comprehensive guide on fundamental key topics coupled with new ideas and results in the areas of WMNs. The book has been prepared keeping in mind that it needs to prove itself to be a valuable resource dealing with both the important core and the specialized issues in WMNs.

Zustand: New. In.

Hardcover. Zustand: Très bon. Ancien livre de bibliothèque. Légères traces d'usure sur la couverture. Edition 2012. Ammareal reverse jusqu'à 15% du prix net de cet article à des organisations caritatives. ENGLISH DESCRIPTION Book Condition: Used, Very good. Former library book. Slight signs of wear on the cover. Edition 2012. Ammareal gives back up to 15% of this item's net price to charity organizations.

Taschenbuch. Zustand: Neu. Neuware -Wireless Mesh Networks (WMNs) applications has a wide scope in communication networks. It provides internet access, information sharing, services, gaming, public safety, medical and emergency response, valuable asset security, video surveillance, industrial monitoring etc. WMNs are very helpful in disaster and emergency networking. This book presents real-time experimental performance evaluation of WMNs and simulation results of decentralized hybrid wireless mesh protocol (DHWMP) and cluster-based routing protocol (CBRP) for WMNs. This book focuses on routing protocols for WMNs with security mechanism and also discuss real-time implementation of WMNs. This book ideas are simple but simulations and implementation is hard. This book covers the details of IEEE 802.11s routing protocols, and security mechanism for decentralized hybrid mesh protocol, simulation of DHWMP, NCBRP and test-bed implementation for wireless mesh networks.Books on Demand GmbH, Überseering 33, 22297 Hamburg 176 pp. Englisch.

Zustand: New.

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Paperback. Zustand: Brand New. 144 pages. 9.21x6.14x0.37 inches. In Stock.

Paperback. Zustand: Brand New. 552 pages. 9.21x6.14x1.38 inches. In Stock.

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Paperback. Zustand: Brand New. 112 pages. 8.66x5.91x0.26 inches. In Stock.

Taschenbuch. Zustand: Neu. Neuware -¿Designing for Network and Service Continuity in Wireless Mesh Networks¿ describes performance predictability of the new wireless mesh network paradigm, and describes considerations in designing networks from the perspective of survivability and service continuity metrics. The work provides design insights for network design researchers and industry professionals. It includes designs for new mesh networks and extensions of existing networks with predictable performance.Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg 236 pp. Englisch.