On Barrier Coverage in Wireless Camera Sensor Networks
學年 98
學期 1
發表日期 2010-04-20
作品名稱 On Barrier Coverage in Wireless Camera Sensor Networks
作品名稱（其他語言）
著者 Shih, Kuei-ping; Chou, Chien-min ; Chen, Wei-yu; Liu, I-hsin
作品所屬單位 淡江大學資訊工程學系
出版者 N.Y.: IEEE (Institute of Electrical and Electronic Engineers)
會議名稱 Advanced Information Networking and Applications (AINA), 2010 24th IEEE International Conference
會議地點 Perth, WA, Australia
摘要 The paper proposed a distributed algorithm, namely CoBRA (Cone-based Barrier coveRage Algorithm), to achieve barrier coverage in wireless camera sensor networks (WCSNs). To the best understanding, CoBRA is the first algorithm which try to deal with the barrier coverage issue in WCSNs. Based on some observations, the basic concept of CoBRA is that each camera sensor can determine the local possible barrier lines according to the geographical relations with their neighbors. A sink in a WCSN initiates Barrier Request (BREQ) messages to form the possible barrier lines. Afterward, a barrier line is constructed by the Barrier Reply (BREQ) message initiated by another sink. CoBRA mainly includes three phases: Initial Phase, Candidate Selection Phase, and Decision Phase. In the Initial Phase, each camera sensor collects the local information of its neighbors and estimates the possible barrier lines. In the Candidate Selection Phase, a sink initiates the BREQ packets and forwards the BREQ packets to camera sensors. Camera sensors receiving the BREQ then reforward the BREQ packets to its neighbors who are capable of forming a barrier line. All camera sensors receiving the BREQ will forward the BREQ to their neighbors again in the same manner. Finally, in the decision phase, after the BREQ message is transmitted through the whole monitoring area, a BREP message is used by the sink to select a barrier line in a WCSN. The barrier coverage is achieved by finding the barrier line in the monitoring area. Experiment results show that CoBRA can efficiently achieve barrier coverage in WCSNs. Comparing to the ideal results, CoBRA can use fewer nodes to accomplish barrier coverage in random deployment scenarios.
關鍵字 Barrier Coverage;Field of View;Wireless Camera Sensor Networks
語言 en
收錄於
會議性質 國際
校內研討會地點
研討會時間 20100420~20100423
通訊作者
國別 AUS
公開徵稿 Y
出版型式
出處 Advanced Information Networking and Applications (AINA), 2010 24th IEEE International Conference, pp.873-879
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