ad hoc networks technologies and protocols

[...]... interesting focal aspects in ad hoc networks The first chapter is a forerunner for things to come It primarily motivates the need for ad hoc networks and xxii discusses the evolution of these networks and projects future directions and challenges The second chapter primarily looks at contention based medium access control in ad hoc networks Most of the research in ad hoc networks assume the use of either... papers and reports have been published on various issues on mobile ad hoc networks Several tutorials and survey reports have been also published on specific aspects of the mobile ad hoc networks In fact‚ conferences and symposiums that are dedicated to ad hoc networking have emerged However‚ a “one-stop” resource for overviewing or summarizing the knowledge and progress on ad hoc networking technologies. .. networks In fact, the ad hoc radio technology and most of the MAC technology will be driven by the advancements in infrastructure wireless networks The unique design features on ad hoc nets marking a departure from the former are in the network and transport protocol areas (routing, multicast, ad hoc TCP and streaming, etc) Another important family of ad hoc networks, the sensor networks, can in turn... networking and radio technologies are needed when operations occur in the “extreme” conditions, namely, extreme mobility (radio and networking), strict delay attributes for safety applications (networking and radio), flexible resource management and reliability (adaptive networks) , and extreme throughput (radios) Extremely flexible radio implementations are needed to realize this goal Moreover, cross layer adaptation... standards is thus becoming a hot issue 1.1.3 Wireless Network Taxonomy From the above, it is clear that ad hoc nets offer challenges (and opportunities) well beyond the reach of infrastructure networks So, where do these nets fit 6 Ad Hoc Networks in the overall wireless network classification? Most researchers will view ad hoc wireless networks as a special subset of wireless networks In fact, the ad. .. as well as routers The nodes in the ad hoc network could be potentially mobile‚ and so the creation of routing paths is affected by the addition and deletion of nodes The topology of the network may change randomly‚ rapidly‚ and unexpectedly Ad hoc networks are useful in many application environments and do not need any infrastructure support Collaborative computing and communications in smaller areas... or variants thereof and this chapter enuniciates by means of both discussion and analyses the nuances of such MAC protocols The third chapter provides an in-depth discussion of routing in ad hoc networks Next‚ we provide a discussion of multicasting in ad hoc networks the issues that arise and the technologies that have emerged We follow with a discussion of transport layer issues and the protocol designs... undoubtedly the integration of transport and in-network processing of the sensed data 1.2 Ad Hoc Network Applications Identifying the emerging commercial applications of the ad hoc network technology has always been an elusive proposition at best Of the three above mentioned wireless technologies - cellular telephony, wireless Internet and ad hoc networks - it is indeed the ad hoc network technology that has... multimedia traffic and the emergency nature of the applications).In the following section we review the characteristics of ad hoc networks in more detail 1.1.2 Ad hoc Networks Characteristics Mobility: the fact that nodes can be rapidly repositioned and/ or move is the raison d’etre of ad hoc networks Rapid deployment in areas with no infrastructure often implies that the users must explore an area and perhaps... major design issues in ad hoc networks It will equip the researchers in the field with the essential tools to attack the design of a complex ad hoc system, whether in standalone configurations like the 10,000 node battlefield networks or opportunistically connected to the Internet The introductory chapter that follows will provide a definition and characterization of ad hoc networks, followed by an .