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CASMAC(Context Aware Sensor MAC Protocol) : An Energy Efficient MAC Protocol for Ubiquitous Sensor Network Environments  

Joo, Young-Sun (목포대학교 컴퓨터공학)
Jung, Min-A (목포대학교 컴퓨터공학)
Lee, Seong-Ro (목포대학교 정보전자공학)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.11B, 2009 , pp. 1200-1206 More about this Journal
Abstract
In this paper, we propose an energy-efficient MAC(Medium Access Control) protocol for processing context information in ubiquitous sensor network environments. CASMAC(Context Aware Sensor MAC) use context information for energy-efficient operation and its operation principle is as follows. First, we make scenarios with possible prediction for CASMAC. And then we save setted context information in server. When event occur at specific sensor node, and then it send three times sample data to server. According to context information, server process sample data. If server process sample data with event, it receive continuous data from event occur node by a transmission request signal. And then server send data transmission stop signal to event occur node when it do not need to data. If server process sample data with no event, it have not reply. Through we make energy consumption tables and an energy consumption model, we simulate analysis of CASMAC performance. In a result, we gains about 5.7 percents energy reduction compared to SMAC.
Keywords
CASMAC; Context-Aware; MAC Protocol; USN; Energy Efficiency;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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