Fundamental challenges in mobile computing
PODC '96 Proceedings of the fifteenth annual ACM symposium on Principles of distributed computing
The broadcast storm problem in a mobile ad hoc network
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Adaptive protocols for information dissemination in wireless sensor networks
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
Multicast tree construction and flooding in wireless ad hoc networks
Proceedings of the 3rd ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems
Replication Techniques in Distributed Systems
Replication Techniques in Distributed Systems
Data Management in Location-Dependent Information Services
IEEE Pervasive Computing
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
Location Dependent Data and its Management in Mobile Databases
DEXA '98 Proceedings of the 9th International Workshop on Database and Expert Systems Applications
Multipoint Relaying for Flooding Broadcast Messages in Mobile Wireless Networks
HICSS '02 Proceedings of the 35th Annual Hawaii International Conference on System Sciences (HICSS'02)-Volume 9 - Volume 9
Ad-hoc On-Demand Distance Vector Routing
WMCSA '99 Proceedings of the Second IEEE Workshop on Mobile Computer Systems and Applications
Replica allocation methods in ad hoc networks with data update
Mobile Networks and Applications
IEEE Transactions on Computers
REDMAN: A Decentralized Middleware Solution for Cooperative Replication in Dense MANETs
PERCOMW '05 Proceedings of the Third IEEE International Conference on Pervasive Computing and Communications Workshops
ACM Computing Surveys (CSUR)
Opportunistic spatio-temporal dissemination system for vehicular networks
Proceedings of the 1st international MobiSys workshop on Mobile opportunistic networking
Study of Different Replica Placement and Maintenance Strategies in Data Grid
CCGRID '07 Proceedings of the Seventh IEEE International Symposium on Cluster Computing and the Grid
Evaluating opportunistic routing protocols with large realistic contact traces
Proceedings of the second ACM workshop on Challenged networks
A survey of data replication techniques for mobile ad hoc network databases
The VLDB Journal — The International Journal on Very Large Data Bases
An overview of the OMNeT++ simulation environment
Proceedings of the 1st international conference on Simulation tools and techniques for communications, networks and systems & workshops
A location aided flooding protocol for wireless ad hoc networks
MSN'07 Proceedings of the 3rd international conference on Mobile ad-hoc and sensor networks
Geo-aware handover of mission agents using opportunistic communication in VANET
ruSMART/NEW2AN'10 Proceedings of the Third conference on Smart Spaces and next generation wired, and 10th international conference on Wireless networking
Analyzing different levels of geographic context awareness in agent ferrying over VANETs
Proceedings of the 2011 ACM Symposium on Applied Computing
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In mobile scenarios, location dependent data can be provided by an infrastructure, or, in case an infrastructure is not available or feasible, by opportunistic networking among mobile devices populating the region of interest. Caused by node mobility, data availability within the region of interest relies on replication and forwarding techniques. Our approach associates data with a geo-address describing the Point of Interest (POI) of the data and proposes a decentralized algorithm for data dissemination. Mobile devices replicate data to increase data availability within a circular area around the POI. To avoid unnecessary communication overhead, the distributed algorithm Sector Heads Aided Flooding Technique (SHAFT) restricts the number of mobile nodes that forward data by arranging data placement geometrically in the area. Hereby, each mobile node decides whether to become a forwarding node based on its geolocation and the known scheme for data arrangement. Additionally, the algorithm adapts to the locally measured density of mobile devices in range. By applying the approach to a cooperative parking lot management system based on theManhattan mobility model we demonstrate its usefulness. Simulation results are provided showing that SHAFT reaches similar data availability as flooding by reducing the number of packets transferred by a factor of up to 92.3% for newly created data and by up to 81.1% for data updates in scenarios of high node density.