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Location information has become a critical requirement for many applications in wireless sensor networks. Conventional localization requires dense anchors with known positions or high transmit power in sparse networks to reach successful localization, which is not suitable for low-cost and low-power sensors. Cooperative localization is a promising solution for wireless sensors' localization, in which...
We consider a wireless network where target nodes aim to locate themselves. A cooperative localization algorithm can provide high accuracy by exchanging location information between nodes. In this paper, a novel distributed cooperative localization algorithm based on factor graph and variational message passing (VMP) is proposed. Compared with other message passing method, VMP algorithm features lower...
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