Traditional positioning needs lots of measurements between the target and anchors. However, this requirement is\nfaced with significant challenge in the most practical scenarios. The cooperation between mobile nodes is an\neffective solution. In order to avoid large computational complexity, we need to cooperate with neighbors selectively.\nThis paper proposes a novel node selection algorithm based on the Fisher information matrix. We represented\ncooperation information with the equivalent Fisher information matrix and then selected neighbors. Simulation\nresults show that the proposed algorithm is able to improve positioning accuracy obviously compared with\ndistance-based node selection algorithm.
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