Barrier Coverage of Line-Based Deployed Wireless Sensor Networks

— Barrier coverage of wireless sensor networks has been studied intensively in recent years under the assumption that sensors are deployed uniformly at random in a large area (Poisson point process model). However, when sensors are deployed along a line (e.g., sensors are dropped from an aircraft along a given path), they would be distributed along the line with random offsets due to wind and other environmental factors. It is important to study the barrier coverage of such linebased deployment strategy as it represents a more realistic sensor placement model than the Poisson point process model. This paper presents the first set of results in this direction. In particular, we establish a tight lower-bound for the existence of barrier coverage under line-based deployments. Our results show that the barrier coverage of the line-based deployments significantly outperforms that of the Poisson model when the random offsets are relatively small compared to the sensor’s sensing range. ...

• Type: Conference
• Year: 2009
• Where: INFOCOM
• Authors: Anwar Saipulla, Cédric Westphal, Benyuan Liu, Jie Wang
• Keywords: Barrier Coverage, Communications, INFOCOM 2009, Sensor, Wireless Sensor Networks