Mobility-Aware on-demand global hosts for ad-hoc multicast

Authors:
Chia-Cheng Hu;Eric Hsiao-Kuang Wu;Gen-Huey Chen;Chiang Jui-Hao
Affiliations:
Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan;Department of Computer Science and Information Engineering, National Central University, Chung-Li, Taiwan;Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan;Department of Computer Science and Information Engineering, National Taiwan University, Taipei, Taiwan
Venue:
ICCNMC'05 Proceedings of the Third international conference on Networking and Mobile Computing
Year:
2005

Citing 8
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Abstract

Recent routing protocols and multicast protocols in large-scale mobile ad-hoc networks (MANETs) adopt two-tier infrastructures to avoid the inefficiency of the flooding. Hosts with a maximal number of neighbors are often chosen as backbone hosts (BHs) to forward packets. Most likely, these BHs will be traffic concentrations/ bottlenecks of the network. In addition, since host mobility is not taken into consideration in selecting BHs, these two-tier schemes will suffer from more lost packets if highly mobile hosts are selected as BHs. In this paper, a new multicast protocol is proposed for multicast services in a large-scale MANET. In the proposed protocol, hosts with fewer hops and longer remaining connection time to the other hosts will be selected as BHs. The objective is not only to obtain short multicast routes, but also to construct a stable two-tier infrastructure with fewer lost packets.