Mobility Based Routing Overhead Management In Reconfigurable Wireless Ad Hoc Networks

Ad-hoc wireless networks present a unique design problem for routing. Wireless networks suffer from low bandwidth due to high rates of interference and inherent limitations of the medium. Mobility also increases the bandwidth used for control packets. To conserve on precious bandwidth, routing protocols should generate as few updates as possible. In this dissertation, we propose distance vector solutions to ad-hoc routing because unlike existing routing solutions our solutions do not use sequence numbers and thus are not prone to inefficient or wrong behavior in the presence of node failures. First, we introduce ROAM, the first protocol to correctly tackle the "searching to infinity" problem found in on-demand routing protocols. ROAM can be used in networks with low rates of topology changes because it required reliable updates. Next, we describe two protocols DST (on-demand) and BEST (table-driven) for networks with high rates of topology change. Simulation experiments carried out in two different simulation packages show that these protocols perform an order of magnitude better than representative on-demand and table-driven routing solutions for ad-hoc networks. Finally, we introduce MDST, an on-demand protocol that extends the source tracing algorithm used in DST to create and maintain multiple paths in an ad-hoc wireless network. Multipath routing can be used in ad hoc networks to achieve greater resilience to route failures and better end-to-end delays. Multipath routing is also essential when using QoS metrics like delay in order to avoid route oscillation. We show that multiple paths that are node disjoint and loop free can be maintained with less overhead than DST. Further, these multiple paths decrease the delay of packet delivery and increase the throughput of the network.

Due to significant advantages, including convenience, efficiency and cost-effectiveness, the implementation and use of wireless ad hoc and sensor networks have achieved steep growth in recent years. This book presents the advances made in these popular technologies, providing expert guidance to practitioners and researchers in the field.

This book is the thoroughly refereed post-proceedings of the Third International Workshop on Wireless and Mobility organized by the European Network of Excellence on Next Generation Internet held in Spain, June 2006. It covers WLAN characterization, vehicular networks, WLAN and sensor networks protocols, QoS and routing in ad-hoc networks, heterogeneous networks, resource management in cellular networks, TCP in wireless, and mobility agents.

Guiding readers through the basics of these rapidly emerging networks to more advanced concepts and future expectations, this book examines the most pressing research issues in Mobile Ad hoc Networks (MANETs). Leading researchers, industry professionals, and academics provide an authoritative perspective of the state of the art in MANETs. The book includes surveys of recent publications that investigate key areas of interest such as limited resources and the mobility of mobile nodes. It considers routing, multicast, energy, security, channel assignment, and ensuring quality of service.

This book constitutes the refereed proceedings of the 6th International Conference on Ad-Hoc Networks and Wireless, ADHOC-NOW 2007, held in Morelia, Mexico, in September 2007. The 21 revised full papers were carefully reviewed and selected from 50 submissions. The papers are organized in topical sections on routing, topology control, security and privacy, protocols, as well as quality of service and performance.

"Ad hoc networking" enables wireless devices to network with each other as needed, even when access to the Internet is unavailable. It enables a wide range of powerful applications, from instant conferencing between notebook PC users to emergency and military services that must perform in the harshest conditions. In this book, the field's leading researchers present today's newest, most sophisticated techniques for making network applications available anytime, anywhere. They present state-of-the-art design and implementation techniques designed to instantly network a wide variety of mobile, wireless devices without access to routers, base stations, or Internet Service Providers. Learn how ad hoc networks utilize existing IP addresses, but require new protocol engineering. Understand cluster-based networks, Dynamic Source Routing (DSR) protocols, Ad Hoc Routing Protocols, reconfigurable wireless and other approaches. Finally, review each leading application for ad hoc networking, including mobile conferencing, home networking, emergency/disaster services, Personal Area Networks (PANs), Bluetooth integration; and embedded, military, and automotive applications.

This book constitutes, together with its compagnion LNCS 2093,the refereed proceedings of the First International Conference of Networking, ICN 2001, held in Colmar, France, June 2001. The 168 papers presentedn were carefully reviewed and selected from around 300 submissions. The proceedings offers topical sections on third and fourth generation, Internet, traffic control, mobile and wireless IP, differentiated services, GPRS and cellular networks, WDM and optical networks, differentiated and integrated services, wirless ATM multicast, real-time traffic, wireless, routing, traffic modeling and simulation, user applications, mobility management, TCP analysis, QoS, ad hoc networks, security, MPLS, switches, COBRA, mobile agents, ATM networks, voice over IP, active networks, video communiccations, and modelization.