Radio Proximity Detection in a WSN to Localize Mobile Entities Within a Confined Area

Provided by: Journal of Communications
Topic: Mobility
Format: PDF
To localize mobile entities within a confined area, a wired infrastructure is neither scalable nor cost-effective. An alternative solution consists in deploying a Wireless Sensor Network (WSN), made of energy-autonomous devices. In an environment where GPS is inoperative, the authors propose that the position of a mobile is given relatively to a set of tag nodes deployed in the zone of activity and signaling their position. In a symmetrical way, each mobile node is announced periodically thus allowing a mutual detection of radio proximity (tag-mobile or mobile-mobile).

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