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The Scientific World Journal
Volume 2014, Article ID 735457, 14 pages
http://dx.doi.org/10.1155/2014/735457
Research Article

Adaptive Broadcasting Mechanism for Bandwidth Allocation in Mobile Services

1Department of Computer Science and Information Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
2Department of Electrical Engineering, National Cheng Kung University, Taiwan
3Department of Information and Telecommunications Engineering, Ming Chuan University, Taiwan

Received 5 February 2014; Revised 15 April 2014; Accepted 15 May 2014; Published 26 June 2014

Academic Editor: Wen-Chiung Lee

Copyright © 2014 Gwo-Jiun Horng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper proposes a tree-based adaptive broadcasting (TAB) algorithm for data dissemination to improve data access efficiency. The proposed TAB algorithm first constructs a broadcast tree to determine the broadcast frequency of each data and splits the broadcast tree into some broadcast wood to generate the broadcast program. In addition, this paper develops an analytical model to derive the mean access latency of the generated broadcast program. In light of the derived results, both the index channel’s bandwidth and the data channel’s bandwidth can be optimally allocated to maximize bandwidth utilization. This paper presents experiments to help evaluate the effectiveness of the proposed strategy. From the experimental results, it can be seen that the proposed mechanism is feasible in practice.