IEEE802.15.4a 기반 실내 위치인식 시스템의 다수태그 수용을 위한 알고리즘

초록

Previous studies for operating multi-tags to avoid the collision of the signals generally used CSMA-CA or TDMA. However, these methods require precise synchronization for implementation of all components. Moreover, there exists a drawback that these methods obligate equal time consumption regardless of the number of tags in the observation area. In this paper, we propose an asynchronous method that uses a master anchor to control multi-tag operation. The propsoed system can be more easily implemented than the synchronous systems. The proposed system operates adaptively according to the number of tags, which reduces time loss.

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