Research Article
Mobility-Tolerant, Efficient Multicast in Mobile Cloud Applications
@INPROCEEDINGS{10.1007/978-3-642-30607-5_16, author={Ju Wang and Hui Chen and Kostadin Damevski and Jonathan Liu}, title={Mobility-Tolerant, Efficient Multicast in Mobile Cloud Applications}, proceedings={Mobile Wireless Middleware, Operating Systems, and Applications. 4th International ICST Conference, Mobilware 2011, London, UK, June 22-24, 2011, Revised Selected Papers}, proceedings_a={MOBILWARE}, year={2012}, month={5}, keywords={multicast mobile cloud reliability mobility fail-recovery MAC protocol wireless network}, doi={10.1007/978-3-642-30607-5_16} }- Ju Wang
Hui Chen
Kostadin Damevski
Jonathan Liu
Year: 2012
Mobility-Tolerant, Efficient Multicast in Mobile Cloud Applications
MOBILWARE
Springer
DOI: 10.1007/978-3-642-30607-5_16
Abstract
Interactive mobile applications require a highly available multicast service for information dissemination and collaboration, while being able to withstand mobility-induced network connectivity problems. However, efficient and reliable wireless multicast has remained a difficult challenge. We propose a novel wireless multicast scheme that allows more efficient and mobility-proof multicast in mobile cloud environments. Our scheme uses a distributed caching and deferred acknowledgement (ACK) technique to reduce delivery ACK traffic during a multicast session. Packets with pending ACK are cached in selected network nodes to provide fast re-delivery. A distributed multicast tree construction algorithm is also utilized to provide fast topology repair under dynamic network conditions. The tree maintenance requires each node to keep track of its 2-hop neighborhood connectivity. Our scheme’s ability to overcome frequent network topology changes leads to a low message exchange overhead to correct local topology errors.