  Received signal strength (RSS)-based wireless localization is easy to
implement at low cost. In practice,exact positions of anchors may not be
available. This paper focuses on determining the location of a source in the
presence of inaccurate positions of anchors based on RSS directly. We first use
Taylor expansion and a min-max approach to get a maximum likelihood estimator
of the coordinates of the source. Then we propose a relaxed semi-definite
programming model to circumvent the non-convexity. We also propose a rounding
algorithm considering both inaccurate source location and inaccurate anchor
locations.Simulation results together with analysis are presented to validate
the proposed method.
