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Multi-channel MAC Protocol for Real-time Monitoring of Weapon Flight Test in Wireless Sensor Network

Authors:
JoonKi Min
Jookyoung Kim
Youngmi Kwon
YongJae Lee

Keywords: Multi-Channel, Wireless Sensor Network, MAC Protocol, Weapon Flight Test, Test Command and Control

Abstract:
In this paper, we propose the priority based multi-channel MAC protocol with single radio interface for the real time monitoring of the flight test of weapon systems. Concurrent transmissions with multi-channel of sensor nodes can improve the network throughput compared with single-channel transmission in wireless sensor networks. Our proposed MAC protocol has two operation modes. First is 'Normal' mode and second is 'Priority' mode. In normal mode, nodes are operated on normal CSMA/CA. And nodes have different priority depending on a sensed signal level in priority mode. High priority nodes can use more transmission channel for data send than low priority nodes. This method can guarantee successful transmission of important data generated by high priority nodes. The Class of a node is determined by own sensed data, in ‘Priority’ mode; nodes have three degrees – Class A, Class B, and Class C. When a sensed data of each node exceeds specific threshold value, each node has specific class respectively. High class node has low backoff exponents and can use more transmission channel. This mechanism allows that high class node has more transmission opportunity. It guarantees transmission of important data generated by high class nodes.

Pages: 83 to 88

Copyright: Copyright (c) The Government of Korea, 2012. Used by permission to IARIA.

Publication date: August 19, 2012

Published in: conference

ISSN: 2308-4405

ISBN: 978-1-61208-207-3

Location: Rome, Italy

Dates: from August 19, 2012 to August 24, 2012