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http://dx.doi.org/10.6109/jkiice.2017.21.5.921

A Tree-based Greedy Algorithm for Minimum Power Broadcast in Wireless Networks  

Lee, Dong-ho (Department of Data Information, Korea Maritime and Ocean University)
Jang, Kil-woong (Department of Data Information, Korea Maritime and Ocean University)
Abstract
Unlike wired networks, broadcasting in wireless networks can transmit data to several nodes at a time in a single transmission. The omnidirectional broadcasting of node in wireless networks simultaneously reaches all neighboring nodes. In this paper, we propose a greedy algorithm to solve the minimum power broadcasting problem that minimizes the total transmission power when broadcasting in wireless networks. The proposed algorithm uses a neighborhood list which is a set of nodes that can transmit messages within the maximum transmission range of each node, and among the transmitting nodes that have received the data, the node having the largest number of the neighboring nodes firstly transmits the data to neighboring node. The performance of the proposed algorithm was evaluated by computer simulation, and was compared with existing algorithms in terms of total transmission power and broadcasting frequency for broadcasting to all nodes. Experiment results show that the proposed algorithm outperforms the conventional algorithms.
Keywords
Wireless networks; minimum power broadcast; minimum spanning tree; greedy algorithm;
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