Paper Info
Title
Handling high mobility in next-generation wireless ad hoc networks
Abstract
Next-generation ad hoc networks need to be able to handle high mobility in order to support a wide range of emerging applications such as vehicular networks. Maintaining communication links of an established communication path that extends between source and destination nodes is a significant challenge in mobile ad hoc networks due to the movement of the mobile nodes. In particular, such communication links are often broken under a high mobility environment. Although a new communication route can be established when a break in the communication path occurs, repeatedly reestablishing new routes incurs delay and substantial overhead. To address this limitation, we introduce the Virtual Router abstraction in this paper. A virtual router is a dynamically created logical router that is associated with a particular geographical area. Its routing functionality is provided by the physical nodes (i.e. mobile devices) currently within the geographical region served by the virtual router. These physical nodes take turns in forwarding data packets for the virtual router. In this environment, data packets are transmitted from a source node to a destination node over a series of virtual routers. Since virtual routers do not move, this scheme is much less susceptible to node mobility. We give simulation results to demonstrate the effectiveness of this technique in handling high mobility. They show that the Virtual Router approach can achieve several times better performance than the traditional approach based on physical routers (i.e. relay nodes). Copyright © 2009 John Wiley & Sons, Ltd. In this paper, we introduce the Virtual Router abstraction to maintain communication links in a high mobility environment. A virtual router is a dynamically-created logical router that is associated with a particular geographical area and its routing functionality is provided by the physical nodes (i.e. mobile devices) currently within the geographical region served by the virtual router. In this environment, data packets are transmitted from a source node to a destination node over a series of virtual routers. Copyright © 2009 John Wiley & Sons, Ltd.
Year
DOI
Venue
2010
10.1002/dac.v23:9/10
International Journal of Communication Systems
Keywords
Field
DocType
physical node,virtual routers,geographical region,high mobility,mobile device,high mobility environment,virtual router,destination node,source node,communication link,mobile ad hoc networks
Mobile ad hoc network,Computer science,Bridge router,Computer network,Core router,Wireless ad hoc network,Router,One-armed router,Vehicular ad hoc network,Virtual Router Redundancy Protocol,Distributed computing
Journal
Volume
Issue
ISSN
23
9‐10
1074-5351
Citations 
PageRank 
References 
10
0.78
0
Authors
3
Name
Order
Citations
PageRank
Ai Hua Ho1405.57
Yao Hua Ho28413.79
Kien A Hua32870425.79