A general model of hybrid data dissemination

Authors:
Hao-Ping Hung;Ming-Syan Chen
Affiliations:
National Taiwan University, Taiwan, ROC;National Taiwan University, Taiwan, ROC
Venue:
Proceedings of the 6th international conference on Mobile data management
Year:
2005

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Abstract

Hybrid data dissemination, which combines the push-based (i.e., broadcast) and pull-based (i.e., on-demand) data delivery, is the most common technique to deliver information in a mobile computing system. Most of the prior works in hibrid dissemination are based on the assumption that each delivered data item is of the same size. However, in the modern communication environment in which various information is delivered, the conventional dissemination schemes suffer from the efficiency issues. In this paper, we consider a general model of hybrid data dissemination, in which each data item is allowed to have an arbitrary size. The analytical model MGBC (Model of General Broadcast Channels) and MGOD (Model of General On-demand Channels) are first proposed to describe the broadcast and on-demand channels, respectively. In addition, the scheme GDS (General Dissemination Scheme) is adopted to perform the channel allocation and the data classification. Experimental results show that the proposed approach gives a near-optimal solution in achieving the minimun access time in the general dissemination environment.