Spray and Focus: Efficient Mobility-Assisted Routing for Heterogeneous and Correlated Mobility

Intermittently connected mobile networks are wireless networks where most of the time there does not exist a complete path from the source to the destination. There are many real networks that follow this model, for example, wildlife tracking sensor networks, military networks, vehicular ad hoc networks (VANETs), etc. To deal with such networks researchers have suggested to use controlled replication or "spraying" methods that can reduce the overhead of flooding-based schemes by distributing a small number of copies to only a few relays. These relays then "look" for the destination in parallel as they move into the network. Although such schemes can perform well in scenarios with high mobility (e.g. VANETs), they struggle in situations were mobility is slow and correlated in space and/or time. To route messages efficiently in such networks, we propose a scheme that also distributes a small number of copies to few relays. However, each relay can then forward its cop...

• Type: Conference
• Year: 2007
• Where: PERCOM
• Authors: Thrasyvoulos Spyropoulos, Konstantinos Psounis, Cauligi S. Raghavendra
• Keywords: Ad Hoc Networks, PERCOM 2007, Sensor Networks, Single-copy Utility-based Scheme, Wireless Networks