Mobile Ad-Hoc Networks Applications

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MOBILE ADHOC NETWORKS: APPLICATIONSEdited by Xin WangMobile Ad-Hoc Networks: ApplicationsEdited by Xin WangPublished by InTechJaneza Trdine 9, 51000 Rijeka, CroatiaCopyright 2011 InTechAll chapters are Open Access articles distributed under the Creative Commons Non Commercial Share Alike Attribution 3.0 license, which permits to copy, distribute, transmit, and adapt the work in any medium, so long as the original work is properly cited. After this work has been published by InTech, authors have the right to republish it, in whole or part, in any publication of which they are the author, and to make other personal use of the work. Any republication, referencing or personal use of the work must explicitly identify the original source.Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published articles. The publisher assumes no responsibility for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained in the book. Publishing Process Manager Iva LipovicTechnical Editor Teodora SmiljanicCover Designer Martina SiroticImage Copyright Supri Suharjoto, 2010. Used under license from Shutterstock.comFirst published January, 2011Printed in IndiaA free online edition of this book is available at www.intechopen.comAdditional hard copies can be obtained from orders@intechweb.org Mobile Ad-Hoc Networks: Applications, Edited by Xin Wang p. cm. ISBN 978-953-307-416-0free online editions of InTech Books and Journals can be found atwww.intechopen.comPart 1Chapter 1Chapter 2Chapter 3Chapter 4Chapter 5Chapter 6Chapter 7Part 2Chapter 8Preface IXVehicular Ad Hoc Networks 1Survey on Multi-hop Vehicular Ad Hoc Networks under IEEE 802.16 Technology 3Gabriel Alejandro Galaviz Mosqueda, Ral Aquino Santos, Luis A. Villaseor Gonzlez, Vctor Rangel Licea and Arthur Edwards BlockCommunications in Vehicular Networks 19Zaydoun Yahya Rawashdeh and Syed Masud MahmudModeling and Simulation of Vehicular Networks:Towards Realistic and Efficient Models 41Mate Boban and Tiago T. V. VinhozaSecurity Issues in Vehicular Ad Hoc Networks 67P. Caballero-GilRouting in Vehicular Ad Hoc Networks: Towards Road-Connectivity Based Routing 89Nadia Brahmi, Mounir Boussedjra and Jospeh MouznaTraffic Information Dissemination in Vehicular Ad Hoc Networks 107Attila Trk, Balzs Mezny and Pter LaborcziCARAVAN: Context-AwaRe Architecture for VANET 125Sawomir Kukliski and Grzegorz WolnySecurity and Caching in Ad Hoc Networks 149Trust Establishment in Mobile Ad Hoc Networks: Key Management 151Dawoud D.S., Richard L. Gordon, Ashraph Suliman and Kasmir Raja S.V.ContentsContents VIGrouping-Enabled and Privacy-EnhancingCommunications Schemes for VANETs 193T.W. Chim, S.M. Yiu, Lucas C.K. Hui and Victor O.K. LiAPALLS: A Secure MANET Routing Protocol 221Sivakumar Kulasekaran and Mahalingam RamkumarMeta-heuristic Techniques and Swarm Intelligence in Mobile Ad Hoc Networks 245Floriano De Rango and Annalisa SocievoleImpact of the Mobility Model on a Cooperative Caching Scheme for Mobile Ad Hoc Networks 265F.J. Gonzalez-Caete and E. CasilariApplications of Ad Hoc Networks 287Ad Hoc Networks for Cooperative Mobile Positioning 289Francescantonio Della Rosa, Helena Leppkoski, Ata-ul Ghalib, Leyla Ghazanfari, Oscar Garcia, Simone Frattasi and Jari NurmiAd-hoc Networks As an Enabler of Brain Spectroscopy 305Salah ShariehMANET Mining: Mining Association Rules 323Ahmad JabasWired/Wireless Compound Networking 349Juan Antonio Cordero, Emmanuel Baccelli,Philippe Jacquet and Thomas ClausenMultiple Multicast Tree Construction and Multiple Description Video Assignment Algorithms 375Osamah Badarneh and Michel KadochTCP in Ad Hoc Networks 399TCP-MAC Interaction in Multi-hop Ad-hoc Networks 401Farzaneh R. Armaghani and Sudhanshu S. JamuarThe Effect of Packet Losses and Delay on TCP Traffic over Wireless Ad Hoc Networks 427May Zin Oo and Mazliza OthmanChapter 9Chapter 10Chapter 11Chapter 12Part 3Chapter 13Chapter 14Chapter 15Chapter 16Chapter 17Part 4Chapter 18Chapter 19Contents VIIOther Topics 451A Survey on The Characterization of the Capacityof Ad Hoc Wireless Networks 453Paulo Cardieri and Pedro Henrique Juliano NardelliDesign and Analysis of a Multi-level Location Information Based Routing Scheme for Mobile Ad hoc Networks 473Koushik Majumder, Sudhabindu Ray and Subir Kumar SarkarPower Control in Ad Hoc Networks 489Muhammad Mazhar Abbas and Hasan MahmoodPart 5Chapter 20Chapter 21Chapter 22PrefaceMobile Ad hoc Networks (MANETs) are a fundamental element of pervasive networks, where user can communicate anywhere, any time and on-the-y. MANETs introduce a new communication paradigm, which does not require a xed infrastructure - they rely on wireless terminals for routing and transport services. This edited volume covers the most advanced research and development in MANET. It seeks to provide an opportunity for readers to explore the emerging elds about MANET.It includes ve parts in total. Part 1 discusses the emerging vehicular ad-hoc networks. Part 2 focuses on the security and caching protocols. Part 3 introduces some new applications for MANET. Part 4 presents novel approaches in transport-layer protocol design. Some interesting topics about network capacity, power control, etc. are discussed in Part 5.AcknowledgementsThe editors are particularly grateful to the authors who present their work in this book. They would also like to express their sincere thanks to all the reviewers, who help to maintain the high quality of this book. We hope that the readers will share our excitement to present this volume on ad-hoc networks and will nd it useful.Prof. Xin WangUniversity of California, Santa Cruz, USAPart 1 Vehicular Ad Hoc Networks 1 Survey on Multi-hop Vehicular Ad Hoc Networks under IEEE 802.16 Technology Gabriel Alejandro Galaviz Mosqueda1, Ral Aquino Santos2, Luis A. Villaseor Gonzlez1, Vctor Rangel Licea3 and Arthur Edwards Block2 1Centro de Investigacin Cientfica y Educacin Superiore de Ensenada. Carretera Ensenada-Tijuana, nm. 3918, Zona playitas, C. P. 22860, Ensenada, Baja California, 2Facultad de Telemtica, Avenida Universidad 333, C. P. 28040, Colima, Col., 3Facultad de Ingeniera, Edificio Valdez Vallejo, 3er piso, Circuito Interior, Ciudad Universitaria, Delegacin Coyoacn, C. P. 04510, Mxico 1. Introduction Today, there are many existing technologies designed to make vehicular road travel safer, easier and more enjoyable, using geographical positioning system, proximity sensors, multimedia communication, etc. The current data transmission requirements of these technologies, unfortunately, place great demand on both the algorithms and equipment, which often perform less than optimally, especially when having to interact with other vehicles. For example, GPS can trace a route to a specific location, but does so without taking into account some very important variables such as congestion caused by road conditions, high traffic volume and traffic accidents, which can entirely block one-lane traffic and affect two-lane traffic by almost 65% [1]. Presently, GPS permits users to obtain real-time location information. However, expanded communications among vehicles and with roadside infrastructure can substantially expand services drivers currently enjoy in the areas of traffic flow, safety, information (Internet), communications (VoIP) and comfort applications, among others [2]. According to Sichitiu et al. applications for vehicular communications include the following: Proactive safety applications: geared primarily to improve driver reaction and decision making to avoid possible accidents (e.g. broadcast warnings from a vehicle that has ignored red stop light) or minimize the impacts of an imminent crash (automated braking systems). Traffic management applications: mainly implemented to improve traffic flow and reduce travel time, which is particularly useful for emergency vehicles. Traffic coordination and traffic assistance: principally concerned with improving the distribution and flow of vehicles by helping drivers pass, change lanes, merge and form columns of vehicles that maintain constant relative speeds and distances (platooning). Traveler Information Support: mainly focused on providing specific information about available resources and assistance persons require, making their traveling experience less stressful and more efficient. Mobile Ad-Hoc Networks: Applications 4 Comfort Applications: primarily designed to improve the travel experience of the passengers and the driver (e.g. gaming, internet, automatic tolls, etc.) Figure 1 shows some potential applications. Fig. 1. Some potential services to be offered by vehicular communication networks In order to provide greater passenger safety, convenience and comfort, protocols and equipment must provide more timely and reliable data transfer between network nodes for them to effectively share vital information. In the case of WiMAX, network nodes must efficiently transmit and receive data in a instantaneously changing network environment, characterized by the constant entry and exit of nodes. In addition, mobile nodes must handle handoffs between different clusters, all while functioning within very strict technical parameters regarding packet loss, delay, latency, and throughput, among others. Sichitiu and Kihl in [3] construct a taxonomy based on the way nodes exchange data. Their work involves two forms of vehicular communication: vehicle to vehicle (IVC) and vehicle to roadside (RVC). IVC can employ either a one hop (SICV) or multi-hop (MIVC) strategy. On the other hand, RVC can be ubiquitous (URVC) or scarce (SRVC). Figure 2 schematizes these authors taxonomy [3]. The following three figures explain this taxonomy and provide examples of IVC, RVC and HVC. Communications within VANETs can be either inter-vehicular or vehicle to roadside and each type of communication imposes its specific requirements. For example, highway collision warning systems can more easily be implemented using multi-hop communications between vehicles (without infrastructure). On the other hand, traveller information requires fixed infrastructure to provide connectivity between the vehicles and Survey on Multi-hop Vehicular Ad Hoc Networks under IEEE 802.16 Technology 5 Fig. 2. Vehicular communications Taxonomy Fig. 3. An IVC example an information center. IVC deployment is significantly less expensive than RVC because it is infrastructureless. This kind of architecture allows vehicles to send information between each other via multi-hop communication, even with vehicles that are beyond their immediate radio coverage area. IVC internet access is much more complicated than with RVC. As a result, IVC can only provide a reduced number of applications. However, IVC is better suited for safety applications because the vehicles can almost immediately detect collision or congestion warning that is transmitted within the affected area. Figure 3 provides an example of inter vehicular communication, where a vehicle approaching an accident detects the crash and Mobile Ad-Hoc Networks: Applications 6 informs the vehicles behind it that it is about to brake suddenly. This forewarning could help avoid other accidents caused by drivers who cannot apply their brakes opportunely and allows vehicles further behind to change lanes to lessen traffic congestion. RVC can offer a wider range of applications because of its more stable and robust access to the Internet, which allows ready availability of information about specific places and the services they provide. RVC, however, has two important drawbacks when considered for safety applications: the cost of deployment of base stations (BS) makes it difficult to provide full coverage for so many vehicles over such a large area as vehicles leaving the BS coverage area lose connectivity. the delay caused by sending packets through a base station can prove disastrous in time sensitive safety applications. Different technologies have been tested to enable RVC, including cellular, WiFi (IEEE 802.11p) and WiMAX (IEEE 802.16e), but no standard has been established as of yet. Presently, authors believe that WiMAX best fits VCN requirements because of its high bandwidth, robust medium access control (MAC), versatility (i.e. wide range of compatible standards) and QoS support. Importantly, it meets the already existing standard for mobile nodes (IEEE 802.16e). Figure 4 illustrates examples of some RVC applications, which include broadcasting the location of specific businesses and providing information about goods and services offered by them. Fig. 4. A RVC network example Survey on Multi-hop Vehicular Ad Hoc Networks under IEEE 802.16 Technology 7 Fig. 5. A mixture of IVC and RVC (HVC) Both IVC and RVC have desirable benefits; while with IVC users can form groups practically anywhere, with RVC persons can have access to internet and extend the vehicular applications. Importantly, combining both of these architectures into a hybrid vehicular communications (HVC) network can maximize benefits. HVC, however, is more complex in various aspects: HVC need more complex routing protocols, a robust physical layer and a medium access layer that is sufficiently dynamic to fully exploit the short duration of links and organized enough to minimize interference. Figure 5 illustrates a hybrid vehicular communication network where vehicles inside the coverage area of a RVC can act as gateways for vehicles outside the coverage area. HVC networks are very desirables because they can provide virtually any kind of service. Importantly, however, as previously mentioned, research must first overcome many technical challenges before HVC networks can be implemented in real-world applications. This is primarily because of the incompatibility of technologies (e.g. WiFi was developed for WLANs, while cellular communications were designed for WANs). As previously mentioned, each type of vehicular communications (IVC, RVC or HVC) has different technological requirements, although they all must meet several...

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