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MOBICOM
2006
ACM

Boundary recognition in sensor networks by topological methods

10 years 8 months ago
Boundary recognition in sensor networks by topological methods
Wireless sensor networks are tightly associated with the underlying environment in which the sensors are deployed. The global topology of the network is of great importance to both sensor network applications and the implementation of networking functionalities. In this paper we study the problem of topology discovery, in particular, identifying boundaries in a sensor network. Suppose a large number of sensor nodes are scattered in a geometric region, with nearby nodes communicating with each other directly. Our goal is to find the boundary nodes by using only connectivity information. We do not assume any knowledge of the node locations or inter-distances, nor do we enforce that the communication graph follows the unit disk graph model. We propose a simple, distributed algorithm that correctly detects nodes on the boundaries and connects them into meaningful boundary cycles. We obtain as a byproduct the medial axis of the sensor field, which has applications in creating virtual coo...
Yue Wang, Jie Gao, Joseph S. B. Mitchell
Added 14 Jun 2010
Updated 14 Jun 2010
Type Conference
Year 2006
Where MOBICOM
Authors Yue Wang, Jie Gao, Joseph S. B. Mitchell
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