%0 Journal Article
	%A Min Kyung An and  Hyuk Cho
	%D 2016
	%J International Journal of Computer and Information Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 114, 2016
	%T Efficient Broadcasting in Wireless Sensor Networks
	%U https://publications.waset.org/pdf/10004693
	%V 114
	%X In this paper, we study the Minimum Latency Broadcast
Scheduling (MLBS) problem in wireless sensor networks (WSNs).
The main issue of the MLBS problem is to compute schedules
with the minimum number of timeslots such that a base station can
broadcast data to all other sensor nodes with no collisions. Unlike
existing works that utilize the traditional omni-directional WSNs,
we target the directional WSNs where nodes can collaboratively
determine and orientate their antenna directions. We first develop
a 7-approximation algorithm, adopting directional WSNs. Our ratio
is currently the best, to the best of our knowledge. We then validate
the performance of the proposed algorithm through simulation.
	%P 1133 - 1139