2015/01/14 by Gholami, Mohammad Reza, Dwivedi, Satyam, Jansson, Magnus +1
#Applications (stat.AP) #FOS: Computer and information sciences #Information Theory (cs.IT)
paper · doi:10.48550/arxiv.1501.03529
We investigate the range estimate between two wireless nodes without time stamps exchanging. Considering practical aspects of oscillator clocks, we propose a new model for ranging in which the measurement errors include the sum of two distributions, namely, uniform and Gaussian. We then derive an approximate maximum likelihood estimator (AMLE), which poses a difficult global optimization problem. To avoid the difficulty in solving the complex AMLE, we propose a simple estimator based on the method of moments. Numerical results show a promising performance for the proposed technique.