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Contact-Aware Optimal Resource Allocation for Mobile Data Offloading in Opportunistic Vehicular Networks
- Source :
- IEEE Transactions on Vehicular Technology. 66:7384-7399
- Publication Year :
- 2017
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2017.
-
Abstract
- To cope with increasing vehicular traffic and extensive application demands on vehicular cellular networks, opportunistic vehicular networks are used to disseminate mobile data by high-capacity device-to-device communication contacts when vehicles come into the communication range of each other, which offloads significant traffic from the cellular network. The current opportunistic vehicular data transmission models often do not take into account the fact that the contact duration is usually very short, due to the high mobility of vehicles, which will limit the amount of data that can be transmitted during one opportunistic contact. In this paper, we consider a mobile data offloading system that integrates cellular network and vehicular opportunistic communications. Based on this proposed system, we establish a mathematical framework to study the problem of contact-aware optimal resource allocation for mobile data offloading by the explicit consideration of the contact duration. Based on theoretical analysis of this problem, we derive an optimal scheme for mobile data offloading to optimally allocate the network resources in terms of opportunistic contacts and offloading helpers’ storage. By carrying out extensive simulation using two realistic urban vehicular traces, we demonstrate the effectiveness of our contact duration aware optimal offloading scheme, in comparison with a wide range of existing schemes.
- Subjects :
- Engineering
Vehicular ad hoc network
Computer Networks and Communications
business.industry
Mobile broadband
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Mobile computing
Aerospace Engineering
020302 automobile design & engineering
020206 networking & telecommunications
02 engineering and technology
0203 mechanical engineering
Automotive Engineering
0202 electrical engineering, electronic engineering, information engineering
Cellular network
Resource allocation
Resource management
Electrical and Electronic Engineering
business
Mobile data offloading
Dissemination
Computer network
Subjects
Details
- ISSN :
- 19399359 and 00189545
- Volume :
- 66
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Vehicular Technology
- Accession number :
- edsair.doi...........e366c9ba7c43d936fcb374fa207afc23